Fresh install getting - Not Found: {"detail":"Not Found"} #7513

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opened 2026-02-16 18:07:24 -05:00 by yindo · 20 comments
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Originally created by @Karrlllis on GitHub (Jan 25, 2026).

Originally assigned to: @rekram1-node on GitHub.

Description

HI

Been using opencode for few days, been working fine but today am getting Not Found: {"detail":"Not Found"}.
I have 2 custome agents and nothing else. However this is C# project.

Update: Claude Code Zen Max doesnt have this issue, OpenAI Pro GPT 5.2 codex has this issue

Plugins

none

OpenCode version

1.1.35

Steps to reproduce

Just run a prompt and it will come up 80% of times

Screenshot and/or share link

Image

Operating System

MacOS 26.2

Terminal

Ghostty

Originally created by @Karrlllis on GitHub (Jan 25, 2026). Originally assigned to: @rekram1-node on GitHub. ### Description HI Been using opencode for few days, been working fine but today am getting Not Found: {"detail":"Not Found"}. I have 2 custome agents and nothing else. However this is C# project. Update: Claude Code Zen Max doesnt have this issue, OpenAI Pro GPT 5.2 codex has this issue ### Plugins none ### OpenCode version 1.1.35 ### Steps to reproduce Just run a prompt and it will come up 80% of times ### Screenshot and/or share link <img width="2198" height="964" alt="Image" src="https://github.com/user-attachments/assets/3b535fca-c3d6-4848-a05b-294195a22a33" /> ### Operating System MacOS 26.2 ### Terminal Ghostty
yindo added the bug label 2026-02-16 18:07:24 -05:00
yindo closed this issue 2026-02-16 18:07:24 -05:00
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@github-actions[bot] commented on GitHub (Jan 25, 2026):

This issue might be a duplicate of existing issues. Please check:

  • #8505: Error 404 when running a prompt - direct API error pattern match
  • #8502: opencode run fails with 'Session not found' - similar session management errors
  • #8538: Session lookup fails with NotFoundError - related session resolution issue
  • #7773: Service crashes on missing session file (NotFoundError) - similar error pattern
  • #9673: 'session not found' errors - session file issues
  • #7106: API returns 'Not Found' for valid requests - API endpoint issues
  • #10483: Session loading failures on startup - related MacOS session issues
  • #8950: Custom provider/agent configuration errors - relates to your 2 custom agents
  • #7958: Custom provider 'not found' errors - custom configuration issues
  • #10192: Failed to spawn OpenCode Server - initialization/startup errors

Feel free to ignore if none of these address your specific case.

@github-actions[bot] commented on GitHub (Jan 25, 2026): This issue might be a duplicate of existing issues. Please check: - #8505: Error 404 when running a prompt - direct API error pattern match - #8502: opencode run fails with 'Session not found' - similar session management errors - #8538: Session lookup fails with NotFoundError - related session resolution issue - #7773: Service crashes on missing session file (NotFoundError) - similar error pattern - #9673: 'session not found' errors - session file issues - #7106: API returns 'Not Found' for valid requests - API endpoint issues - #10483: Session loading failures on startup - related MacOS session issues - #8950: Custom provider/agent configuration errors - relates to your 2 custom agents - #7958: Custom provider 'not found' errors - custom configuration issues - #10192: Failed to spawn OpenCode Server - initialization/startup errors Feel free to ignore if none of these address your specific case.
Author
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@jazoom commented on GitHub (Jan 25, 2026):

I'm getting the same error: Not Found: {"detail":"Not Found"}.

I just installed OpenCode for the first time and connected OpenAI. I am running it via the web interface. GPT nano and Bigpickle work fine. Codex 5.2 gives the error every time, in Plan and Build modes.

@jazoom commented on GitHub (Jan 25, 2026): I'm getting the same error: `Not Found: {"detail":"Not Found"}`. I just installed OpenCode for the first time and connected OpenAI. I am running it via the web interface. GPT nano and Bigpickle work fine. Codex 5.2 gives the error every time, in Plan and Build modes.
Author
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@ricardodantas commented on GitHub (Jan 30, 2026):

Today I opened Opencode, and it seems it can't find the Claude Opus 4.5 from my GitHub Copilot subscription. I got:

Not Found: Not Found

When I try other models, they work, but any Opus or Sonnet does not.

@ricardodantas commented on GitHub (Jan 30, 2026): Today I opened Opencode, and it seems it can't find the Claude Opus 4.5 from my GitHub Copilot subscription. I got: ``` Not Found: Not Found ``` When I try other models, they work, but any Opus or Sonnet does not.
Author
Owner

@chuan2984 commented on GitHub (Jan 30, 2026):

Can confirm, i was using it last night before I went to bed like 10 hours ago. Im using sonnet 4.5 from Copilot and its just Not Found: Not Found right now. However, using zen(free model) or sonnet directly from Claude works

@chuan2984 commented on GitHub (Jan 30, 2026): Can confirm, i was using it last night before I went to bed like 10 hours ago. Im using sonnet 4.5 from Copilot and its just `Not Found: Not Found` right now. However, using zen(free model) or sonnet directly from Claude works
Author
Owner

@R44VC0RP commented on GitHub (Jan 30, 2026):

Today I opened Opencode, and it seems it can't find the Claude Opus 4.5 from my GitHub Copilot subscription. I got:

Not Found: Not Found

When I try other models, they work, but any Opus or Sonnet does not.

Hey @ricardodantas what version of OpenCode are you on?

@R44VC0RP commented on GitHub (Jan 30, 2026): > Today I opened Opencode, and it seems it can't find the Claude Opus 4.5 from my GitHub Copilot subscription. I got: > > ``` > Not Found: Not Found > ``` > > When I try other models, they work, but any Opus or Sonnet does not. Hey @ricardodantas what version of OpenCode are you on?
Author
Owner

@TorlettiJoaquin commented on GitHub (Jan 30, 2026):

Can confirm the same behavior here.
Around ~7 hours ago both Claude Opus and Claude Sonnet via GitHub Copilot were working fine.
About ~1 hour ago they started failing with the same error:

Not Found: Not Found.

Other GitHub Copilot models (e.g. gpt-5.2-codex) are working fine.

OpenCode version: 1.1.40

@TorlettiJoaquin commented on GitHub (Jan 30, 2026): Can confirm the same behavior here. Around ~7 hours ago both Claude Opus and Claude Sonnet via GitHub Copilot were working fine. About ~1 hour ago they started failing with the same error: > `Not Found: Not Found`. Other GitHub Copilot models (e.g. gpt-5.2-codex) are working fine. OpenCode version: **1.1.40**
Author
Owner

@rekram1-node commented on GitHub (Jan 30, 2026):

Please upgrade to latest, I cannot replicate this issue

@rekram1-node commented on GitHub (Jan 30, 2026): Please upgrade to latest, I cannot replicate this issue
Author
Owner

@rekram1-node commented on GitHub (Jan 30, 2026):

Anyone getting this error please send me output of opencode export > session.json

@rekram1-node commented on GitHub (Jan 30, 2026): Anyone getting this error please send me output of `opencode export > session.json`
Author
Owner

@chuan2984 commented on GitHub (Jan 30, 2026):

@rekram1-node

here is my session.json on version 1.1.40

{
  "info": {
    "id": "ses_3ef72e0b8ffekx1mAVE3zzxzun",
    "slug": "nimble-tiger",
    "version": "1.1.40",
    "projectID": "a975288cbe82800de976380ce6e60f7b545ab63f",
    "directory": "/Users/chuanhe/github/work/fieldwire_api/spikes/request_pattern",
    "title": "New session - 2026-01-30T20:16:49.991Z",
    "time": {
      "created": 1769804209991,
      "updated": 1769804210066
    },
    "summary": {
      "additions": 0,
      "deletions": 0,
      "files": 0
    }
  },
  "messages": [
    {
      "info": {
        "id": "msg_c108d1f4a001cMK5Z0xp98dVlw",
        "sessionID": "ses_3ef72e0b8ffekx1mAVE3zzxzun",
        "role": "user",
        "time": {
          "created": 1769804210005
        },
        "summary": {
          "diffs": []
        },
        "agent": "build",
        "model": {
          "providerID": "github-copilot",
          "modelID": "claude-sonnet-4"
        }
      },
      "parts": [
        {
          "id": "prt_c108d1f4a002MDE2S8uOTY73nj",
          "sessionID": "ses_3ef72e0b8ffekx1mAVE3zzxzun",
          "messageID": "msg_c108d1f4a001cMK5Z0xp98dVlw",
          "type": "text",
          "text": "this is sonnet 4 from copilot"
        }
      ]
    },
    {
      "info": {
        "id": "msg_c108d1f71001QnH6Cb7u7l76nx",
        "sessionID": "ses_3ef72e0b8ffekx1mAVE3zzxzun",
        "role": "assistant",
        "time": {
          "created": 1769804210033,
          "completed": 1769804210433
        },
        "error": {
          "name": "APIError",
          "data": {
            "message": "Not Found: Not Found",
            "statusCode": 404,
            "isRetryable": false,
            "responseHeaders": {
              "content-length": "10",
              "content-security-policy": "default-src 'none'; sandbox",
              "content-type": "text/plain; charset=utf-8",
              "date": "Fri, 30 Jan 2026 20:16:50 GMT",
              "strict-transport-security": "max-age=31536000",
              "x-content-type-options": "nosniff",
              "x-github-backend": "Kubernetes",
              "x-github-request-id": "C7BE:31CA7C:9B7EB8:B1DA1E:697D11B2",
              "x-request-id": "00000-0c62473c-e8bd-49e5-b7d0-63005ab5c816"
            },
            "responseBody": "Not Found\n",
            "metadata": {
              "url": "https://api.githubcopilot.com/v1/messages"
            }
          }
        },
        "parentID": "msg_c108d1f4a001cMK5Z0xp98dVlw",
        "modelID": "claude-sonnet-4",
        "providerID": "github-copilot",
        "mode": "build",
        "agent": "build",
        "path": {
          "cwd": "/Users/chuanhe/github/work/fieldwire_api/spikes/request_pattern",
          "root": "/Users/chuanhe/github/work/fieldwire_api"
        },
        "cost": 0,
        "tokens": {
          "input": 0,
          "output": 0,
          "reasoning": 0,
          "cache": {
            "read": 0,
            "write": 0
          }
        }
      },
      "parts": []
    }
  ]
}
@chuan2984 commented on GitHub (Jan 30, 2026): @rekram1-node here is my `session.json` on version `1.1.40` ```json { "info": { "id": "ses_3ef72e0b8ffekx1mAVE3zzxzun", "slug": "nimble-tiger", "version": "1.1.40", "projectID": "a975288cbe82800de976380ce6e60f7b545ab63f", "directory": "/Users/chuanhe/github/work/fieldwire_api/spikes/request_pattern", "title": "New session - 2026-01-30T20:16:49.991Z", "time": { "created": 1769804209991, "updated": 1769804210066 }, "summary": { "additions": 0, "deletions": 0, "files": 0 } }, "messages": [ { "info": { "id": "msg_c108d1f4a001cMK5Z0xp98dVlw", "sessionID": "ses_3ef72e0b8ffekx1mAVE3zzxzun", "role": "user", "time": { "created": 1769804210005 }, "summary": { "diffs": [] }, "agent": "build", "model": { "providerID": "github-copilot", "modelID": "claude-sonnet-4" } }, "parts": [ { "id": "prt_c108d1f4a002MDE2S8uOTY73nj", "sessionID": "ses_3ef72e0b8ffekx1mAVE3zzxzun", "messageID": "msg_c108d1f4a001cMK5Z0xp98dVlw", "type": "text", "text": "this is sonnet 4 from copilot" } ] }, { "info": { "id": "msg_c108d1f71001QnH6Cb7u7l76nx", "sessionID": "ses_3ef72e0b8ffekx1mAVE3zzxzun", "role": "assistant", "time": { "created": 1769804210033, "completed": 1769804210433 }, "error": { "name": "APIError", "data": { "message": "Not Found: Not Found", "statusCode": 404, "isRetryable": false, "responseHeaders": { "content-length": "10", "content-security-policy": "default-src 'none'; sandbox", "content-type": "text/plain; charset=utf-8", "date": "Fri, 30 Jan 2026 20:16:50 GMT", "strict-transport-security": "max-age=31536000", "x-content-type-options": "nosniff", "x-github-backend": "Kubernetes", "x-github-request-id": "C7BE:31CA7C:9B7EB8:B1DA1E:697D11B2", "x-request-id": "00000-0c62473c-e8bd-49e5-b7d0-63005ab5c816" }, "responseBody": "Not Found\n", "metadata": { "url": "https://api.githubcopilot.com/v1/messages" } } }, "parentID": "msg_c108d1f4a001cMK5Z0xp98dVlw", "modelID": "claude-sonnet-4", "providerID": "github-copilot", "mode": "build", "agent": "build", "path": { "cwd": "/Users/chuanhe/github/work/fieldwire_api/spikes/request_pattern", "root": "/Users/chuanhe/github/work/fieldwire_api" }, "cost": 0, "tokens": { "input": 0, "output": 0, "reasoning": 0, "cache": { "read": 0, "write": 0 } } }, "parts": [] } ] } ```
Author
Owner

@TorlettiJoaquin commented on GitHub (Jan 30, 2026):

@rekram1-node
Here’s my session info.
As mentioned above, my OpenCode version is 1.1.40.

{
  "info": {
    "id": "ses_3ef72defcffeiozUqeEYBL9leW",
    "slug": "misty-rocket",
    "version": "1.1.40",
    "projectID": "9f06df6b6d563d3f6c6c4f43502e1b0bd76e96e4",
    "directory": "/Users/.../Documents/DEV/...",
    "title": "Model testing setup",
    "time": {
      "created": 1769804210435,
      "updated": 1769804240867
    },
    "summary": {
      "additions": 0,
      "deletions": 0,
      "files": 0
    }
  },
  "messages": [
    {
      "info": {
        "id": "msg_c108d21080012OLauVSWM8xVWP",
        "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
        "role": "user",
        "time": {
          "created": 1769804210447
        },
        "summary": {
          "title": "Testing model",
          "diffs": []
        },
        "agent": "build",
        "model": {
          "providerID": "anthropic",
          "modelID": "claude-sonnet-4-5"
        }
      },
      "parts": [
        {
          "id": "prt_c108d2108002LsqSQTzPM5KHAG",
          "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
          "messageID": "msg_c108d21080012OLauVSWM8xVWP",
          "type": "text",
          "text": "testing model"
        }
      ]
    },
    {
      "info": {
        "id": "msg_c108d2116001MBBzWG92PgPD50",
        "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
        "role": "assistant",
        "time": {
          "created": 1769804210454,
          "completed": 1769804217327
        },
        "parentID": "msg_c108d21080012OLauVSWM8xVWP",
        "modelID": "claude-sonnet-4-5",
        "providerID": "anthropic",
        "mode": "build",
        "agent": "build",
        "path": {
          "cwd": "/Users/.../Documents/DEV/...",
          "root": "/Users/.../Documents/DEV/..."
        },
        "cost": 0,
        "tokens": {
          "input": 2,
          "output": 122,
          "reasoning": 0,
          "cache": {
            "read": 0,
            "write": 30174
          }
        },
        "finish": "stop"
      },
      "parts": [
        {
          "id": "prt_c108d3171001SCOvSWjhmZrL0Q",
          "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
          "messageID": "msg_c108d2116001MBBzWG92PgPD50",
          "type": "step-start",
          "snapshot": "4c2182b29a4305527a9a2bbedb35c550c5cc6508"
        },
        {
          "id": "prt_c108d3172001jlwFnXCVYIegj8",
          "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
          "messageID": "msg_c108d2116001MBBzWG92PgPD50",
          "type": "text",
          "text": "I'm Claude Code, ready to help you with ...",
          "time": {
            "start": 1769804217248,
            "end": 1769804217248
          }
        },
        {
          "id": "prt_c108d3baa001TFKs5Ww2mFuK0t",
          "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
          "messageID": "msg_c108d2116001MBBzWG92PgPD50",
          "type": "step-finish",
          "reason": "stop",
          "snapshot": "4c2182b29a4305527a9a2bbedb35c550c5cc6508",
          "cost": 0,
          "tokens": {
            "input": 2,
            "output": 122,
            "reasoning": 0,
            "cache": {
              "read": 0,
              "write": 30174
            }
          }
        }
      ]
    },
    {
      "info": {
        "id": "msg_c108d6bc7001N0oZvODUsggB52",
        "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
        "role": "user",
        "time": {
          "created": 1769804229582
        },
        "summary": {
          "title": "Model testing",
          "diffs": []
        },
        "agent": "build",
        "model": {
          "providerID": "github-copilot",
          "modelID": "claude-sonnet-4.5"
        }
      },
      "parts": [
        {
          "id": "prt_c108d6bc7002sYAbBTjjqZkR1C",
          "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
          "messageID": "msg_c108d6bc7001N0oZvODUsggB52",
          "type": "text",
          "text": "testing model"
        }
      ]
    },
    {
      "info": {
        "id": "msg_c108d6bd700169v3SOkoI7ldaA",
        "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
        "role": "assistant",
        "time": {
          "created": 1769804229591,
          "completed": 1769804230542
        },
        "error": {
          "name": "APIError",
          "data": {
            "message": "Not Found: Not Found",
            "statusCode": 404,
            "isRetryable": false,
            "responseHeaders": {
              "content-length": "10",
              "content-security-policy": "default-src 'none'; sandbox",
              "content-type": "text/plain; charset=utf-8",
              "date": "Fri, 30 Jan 2026 20:17:10 GMT",
              "strict-transport-security": "max-age=31536000",
              "x-content-type-options": "nosniff",
              "x-github-backend": "Kubernetes",
              "x-github-request-id": "E07B:2997F0:96D47F:AD6CC1:697D11C6",
              "x-request-id": "00000-0a9c5007-a703-4869-9440-6e42b230806b"
            },
            "responseBody": "Not Found\n",
            "metadata": {
              "url": "https://api.githubcopilot.com/v1/messages"
            }
          }
        },
        "parentID": "msg_c108d6bc7001N0oZvODUsggB52",
        "modelID": "claude-sonnet-4.5",
        "providerID": "github-copilot",
        "mode": "build",
        "agent": "build",
        "path": {
          "cwd": "/Users/.../Documents/DEV/...",
          "root": "/Users/.../Documents/DEV/..."
        },
        "cost": 0,
        "tokens": {
          "input": 0,
          "output": 0,
          "reasoning": 0,
          "cache": {
            "read": 0,
            "write": 0
          }
        }
      },
      "parts": []
    },
    {
      "info": {
        "id": "msg_c108d95e30018hYGCN5hZHaVnb",
        "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
        "role": "user",
        "time": {
          "created": 1769804240360
        },
        "summary": {
          "title": "Testing Model Opus",
          "diffs": []
        },
        "agent": "build",
        "model": {
          "providerID": "github-copilot",
          "modelID": "claude-opus-4.5"
        }
      },
      "parts": [
        {
          "id": "prt_c108d95e3002pTSsTcrJqapKAr",
          "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
          "messageID": "msg_c108d95e30018hYGCN5hZHaVnb",
          "type": "text",
          "text": "testing model opus"
        }
      ]
    },
    {
      "info": {
        "id": "msg_c108d95ee001znHcH5Hv5Ai6Ps",
        "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW",
        "role": "assistant",
        "time": {
          "created": 1769804240366,
          "completed": 1769804241053
        },
        "error": {
          "name": "APIError",
          "data": {
            "message": "Not Found: Not Found",
            "statusCode": 404,
            "isRetryable": false,
            "responseHeaders": {
              "content-length": "10",
              "content-security-policy": "default-src 'none'; sandbox",
              "content-type": "text/plain; charset=utf-8",
              "date": "Fri, 30 Jan 2026 20:17:21 GMT",
              "strict-transport-security": "max-age=31536000",
              "x-content-type-options": "nosniff",
              "x-github-backend": "Kubernetes",
              "x-github-request-id": "E07B:2997F0:96F606:AD93C2:697D11D0",
              "x-request-id": "00000-ad062b23-35e9-4ac8-aece-97afa17e1d77"
            },
            "responseBody": "Not Found\n",
            "metadata": {
              "url": "https://api.githubcopilot.com/v1/messages"
            }
          }
        },
        "parentID": "msg_c108d95e30018hYGCN5hZHaVnb",
        "modelID": "claude-opus-4.5",
        "providerID": "github-copilot",
        "mode": "build",
        "agent": "build",
        "path": {
          "cwd": "/Users/.../Documents/DEV/...",
          "root": "/Users/.../Documents/DEV/..."
        },
        "cost": 0,
        "tokens": {
          "input": 0,
          "output": 0,
          "reasoning": 0,
          "cache": {
            "read": 0,
            "write": 0
          }
        }
      },
      "parts": []
    }
  ]
}
@TorlettiJoaquin commented on GitHub (Jan 30, 2026): @rekram1-node Here’s my session info. As mentioned above, my OpenCode version is 1.1.40. ``` { "info": { "id": "ses_3ef72defcffeiozUqeEYBL9leW", "slug": "misty-rocket", "version": "1.1.40", "projectID": "9f06df6b6d563d3f6c6c4f43502e1b0bd76e96e4", "directory": "/Users/.../Documents/DEV/...", "title": "Model testing setup", "time": { "created": 1769804210435, "updated": 1769804240867 }, "summary": { "additions": 0, "deletions": 0, "files": 0 } }, "messages": [ { "info": { "id": "msg_c108d21080012OLauVSWM8xVWP", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "role": "user", "time": { "created": 1769804210447 }, "summary": { "title": "Testing model", "diffs": [] }, "agent": "build", "model": { "providerID": "anthropic", "modelID": "claude-sonnet-4-5" } }, "parts": [ { "id": "prt_c108d2108002LsqSQTzPM5KHAG", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "messageID": "msg_c108d21080012OLauVSWM8xVWP", "type": "text", "text": "testing model" } ] }, { "info": { "id": "msg_c108d2116001MBBzWG92PgPD50", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "role": "assistant", "time": { "created": 1769804210454, "completed": 1769804217327 }, "parentID": "msg_c108d21080012OLauVSWM8xVWP", "modelID": "claude-sonnet-4-5", "providerID": "anthropic", "mode": "build", "agent": "build", "path": { "cwd": "/Users/.../Documents/DEV/...", "root": "/Users/.../Documents/DEV/..." }, "cost": 0, "tokens": { "input": 2, "output": 122, "reasoning": 0, "cache": { "read": 0, "write": 30174 } }, "finish": "stop" }, "parts": [ { "id": "prt_c108d3171001SCOvSWjhmZrL0Q", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "messageID": "msg_c108d2116001MBBzWG92PgPD50", "type": "step-start", "snapshot": "4c2182b29a4305527a9a2bbedb35c550c5cc6508" }, { "id": "prt_c108d3172001jlwFnXCVYIegj8", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "messageID": "msg_c108d2116001MBBzWG92PgPD50", "type": "text", "text": "I'm Claude Code, ready to help you with ...", "time": { "start": 1769804217248, "end": 1769804217248 } }, { "id": "prt_c108d3baa001TFKs5Ww2mFuK0t", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "messageID": "msg_c108d2116001MBBzWG92PgPD50", "type": "step-finish", "reason": "stop", "snapshot": "4c2182b29a4305527a9a2bbedb35c550c5cc6508", "cost": 0, "tokens": { "input": 2, "output": 122, "reasoning": 0, "cache": { "read": 0, "write": 30174 } } } ] }, { "info": { "id": "msg_c108d6bc7001N0oZvODUsggB52", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "role": "user", "time": { "created": 1769804229582 }, "summary": { "title": "Model testing", "diffs": [] }, "agent": "build", "model": { "providerID": "github-copilot", "modelID": "claude-sonnet-4.5" } }, "parts": [ { "id": "prt_c108d6bc7002sYAbBTjjqZkR1C", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "messageID": "msg_c108d6bc7001N0oZvODUsggB52", "type": "text", "text": "testing model" } ] }, { "info": { "id": "msg_c108d6bd700169v3SOkoI7ldaA", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "role": "assistant", "time": { "created": 1769804229591, "completed": 1769804230542 }, "error": { "name": "APIError", "data": { "message": "Not Found: Not Found", "statusCode": 404, "isRetryable": false, "responseHeaders": { "content-length": "10", "content-security-policy": "default-src 'none'; sandbox", "content-type": "text/plain; charset=utf-8", "date": "Fri, 30 Jan 2026 20:17:10 GMT", "strict-transport-security": "max-age=31536000", "x-content-type-options": "nosniff", "x-github-backend": "Kubernetes", "x-github-request-id": "E07B:2997F0:96D47F:AD6CC1:697D11C6", "x-request-id": "00000-0a9c5007-a703-4869-9440-6e42b230806b" }, "responseBody": "Not Found\n", "metadata": { "url": "https://api.githubcopilot.com/v1/messages" } } }, "parentID": "msg_c108d6bc7001N0oZvODUsggB52", "modelID": "claude-sonnet-4.5", "providerID": "github-copilot", "mode": "build", "agent": "build", "path": { "cwd": "/Users/.../Documents/DEV/...", "root": "/Users/.../Documents/DEV/..." }, "cost": 0, "tokens": { "input": 0, "output": 0, "reasoning": 0, "cache": { "read": 0, "write": 0 } } }, "parts": [] }, { "info": { "id": "msg_c108d95e30018hYGCN5hZHaVnb", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "role": "user", "time": { "created": 1769804240360 }, "summary": { "title": "Testing Model Opus", "diffs": [] }, "agent": "build", "model": { "providerID": "github-copilot", "modelID": "claude-opus-4.5" } }, "parts": [ { "id": "prt_c108d95e3002pTSsTcrJqapKAr", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "messageID": "msg_c108d95e30018hYGCN5hZHaVnb", "type": "text", "text": "testing model opus" } ] }, { "info": { "id": "msg_c108d95ee001znHcH5Hv5Ai6Ps", "sessionID": "ses_3ef72defcffeiozUqeEYBL9leW", "role": "assistant", "time": { "created": 1769804240366, "completed": 1769804241053 }, "error": { "name": "APIError", "data": { "message": "Not Found: Not Found", "statusCode": 404, "isRetryable": false, "responseHeaders": { "content-length": "10", "content-security-policy": "default-src 'none'; sandbox", "content-type": "text/plain; charset=utf-8", "date": "Fri, 30 Jan 2026 20:17:21 GMT", "strict-transport-security": "max-age=31536000", "x-content-type-options": "nosniff", "x-github-backend": "Kubernetes", "x-github-request-id": "E07B:2997F0:96F606:AD93C2:697D11D0", "x-request-id": "00000-ad062b23-35e9-4ac8-aece-97afa17e1d77" }, "responseBody": "Not Found\n", "metadata": { "url": "https://api.githubcopilot.com/v1/messages" } } }, "parentID": "msg_c108d95e30018hYGCN5hZHaVnb", "modelID": "claude-opus-4.5", "providerID": "github-copilot", "mode": "build", "agent": "build", "path": { "cwd": "/Users/.../Documents/DEV/...", "root": "/Users/.../Documents/DEV/..." }, "cost": 0, "tokens": { "input": 0, "output": 0, "reasoning": 0, "cache": { "read": 0, "write": 0 } } }, "parts": [] } ] } ```
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@Toumash commented on GitHub (Jan 30, 2026):

Same here - opus not working on 1.1.40 (Not Found: Not Found)- brew upgrade opencode didnt fix it (1.1.40 is the newest version)
the fix i found on the homepage - they somehow changed the brew source i dontknow
brew install anomalyco/tap/opencode
it will install version 1.1.47

Image
@Toumash commented on GitHub (Jan 30, 2026): Same here - opus not working on 1.1.40 (`Not Found: Not Found`)- brew upgrade opencode didnt fix it (1.1.40 is the newest version) the fix i found on the homepage - they somehow changed the brew source i dontknow `brew install anomalyco/tap/opencode` it will install version 1.1.47 <img width="2986" height="1288" alt="Image" src="https://github.com/user-attachments/assets/f667eab1-ef63-490d-a858-07e211596e21" />
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@rekram1-node commented on GitHub (Jan 30, 2026):

Should be fixed now

@rekram1-node commented on GitHub (Jan 30, 2026): Should be fixed now
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@chuan2984 commented on GitHub (Jan 30, 2026):

Should be fixed now

thanks for the quick fix. Does that mean i can do brew upgrade opencode, and it would pick up the latest or that we need to start tapping from anomalyco/tap?

I just did a brew upgrade it is still 1.1.40

@chuan2984 commented on GitHub (Jan 30, 2026): > Should be fixed now thanks for the quick fix. Does that mean i can do brew upgrade opencode, and it would pick up the latest or that we need to start tapping from anomalyco/tap? I just did a brew upgrade it is still 1.1.40
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@smash-og commented on GitHub (Jan 30, 2026):

I'm also on 1.1.40 and getting the same error as others above. What version can we pin our install to? @rekram1-node

@smash-og commented on GitHub (Jan 30, 2026): I'm also on 1.1.40 and getting the same error as others above. What version can we pin our install to? @rekram1-node
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@rekram1-node commented on GitHub (Jan 30, 2026):

You should use our brew tap:

brew install anomalyco/tap/opencode

The other one get's updated way less frequently since we do not maintain it

@rekram1-node commented on GitHub (Jan 30, 2026): You should use our brew tap: brew install anomalyco/tap/opencode The other one get's updated way less frequently since we do not maintain it
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@salman0ansari commented on GitHub (Jan 31, 2026):

upgrading to 1.1.47, fixed the issue

@salman0ansari commented on GitHub (Jan 31, 2026): upgrading to 1.1.47, fixed the issue
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@jcubic commented on GitHub (Feb 1, 2026):

I restarted the system after installing the new Linux kernel and got:

Not Found: Not Found

I use version 1.1.48 installed with curl. I haven't used it for a while.

I've tried to log in to Copilot again. No difference.

@jcubic commented on GitHub (Feb 1, 2026): I restarted the system after installing the new Linux kernel and got: `Not Found: Not Found` I use version 1.1.48 installed with curl. I haven't used it for a while. I've tried to log in to Copilot again. No difference.
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@rekram1-node commented on GitHub (Feb 1, 2026):

@jcubic can u export the session?

opencode export > session.json

are u certain u dont have multiple installs of opencode on ur machine

@rekram1-node commented on GitHub (Feb 1, 2026): @jcubic can u export the session? opencode export > session.json are u certain u dont have multiple installs of opencode on ur machine
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@jcubic commented on GitHub (Feb 1, 2026):

I think it was something temporary. It's working now.

@jcubic commented on GitHub (Feb 1, 2026): I think it was something temporary. It's working now.
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@cherealnice commented on GitHub (Feb 4, 2026):

+1 for

brew uninstall opencode
brew install anomalyco/tap/opencode
@cherealnice commented on GitHub (Feb 4, 2026): +1 for ``` brew uninstall opencode brew install anomalyco/tap/opencode ```
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Reference: anomalyco/opencode#7513