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Scrolling Slow in V1.0 / Feature Request Define Model per Agent #2425

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opened 2026-02-16 17:35:33 -05:00 by yindo · 4 comments
yindo commented 2026-02-16 17:35:33 -05:00
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Originally created by @ambedded on GitHub (Oct 31, 2025).

  • backscrolling is still very slow and not reactive like any other window you would scroll through.
  • i would love the following feature: for each agent i define, define what model it uses. seems not to be supported right now. this due to cost, i would like to use sonnet all the time but its too expensive, i would like to use it just as an instructor (frontend bot) and all agents could use a smaller model if well instructed.
Originally created by @ambedded on GitHub (Oct 31, 2025). - backscrolling is still very slow and not reactive like any other window you would scroll through. - i would love the following feature: for each agent i define, define what model it uses. seems not to be supported right now. this due to cost, i would like to use sonnet all the time but its too expensive, i would like to use it just as an instructor (frontend bot) and all agents could use a smaller model if well instructed.
yindo added the opentui label 2026-02-16 17:35:33 -05:00
yindo closed this issue 2026-02-16 17:35:33 -05:00
yindo commented 2026-02-16 17:35:33 -05:00
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@github-actions[bot] commented on GitHub (Oct 31, 2025):

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

For the scrolling performance issue:

  • #811: Text rendering is VERY slow (and CPU usage is really high even when idle) - describes very similar scrolling and rendering performance issues with high CPU usage
  • #2083: significant performance regression with text animation - mentions similar performance issues that could affect scrolling

For the model per agent feature request:

  • #1891: Per-Model Instructions - requests the ability to define different instructions per model/provider, which is conceptually similar to defining models per agent
  • #3439: [FEATURE]: custom model aliases - proposes a system for model aliasing that could help with cost management by allowing easy model swapping
  • #3411: [FEATURE]: Disabling specific models through opencode.json - related to controlling which models are available/used

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

@github-actions[bot] commented on GitHub (Oct 31, 2025): This issue might be a duplicate of existing issues. Please check: **For the scrolling performance issue:** - #811: Text rendering is VERY slow (and CPU usage is really high even when idle) - describes very similar scrolling and rendering performance issues with high CPU usage - #2083: significant performance regression with text animation - mentions similar performance issues that could affect scrolling **For the model per agent feature request:** - #1891: Per-Model Instructions - requests the ability to define different instructions per model/provider, which is conceptually similar to defining models per agent - #3439: [FEATURE]: custom model aliases - proposes a system for model aliasing that could help with cost management by allowing easy model swapping - #3411: [FEATURE]: Disabling specific models through opencode.json - related to controlling which models are available/used Feel free to ignore if none of these address your specific case.
yindo commented 2026-02-16 17:35:33 -05:00
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@AbbasSrour commented on GitHub (Nov 1, 2025):

I believe it would have been better to have them as two separate issues.

Also to my knowledge you can already define a default model per agent.

@AbbasSrour commented on GitHub (Nov 1, 2025): I believe it would have been better to have them as two separate issues. Also to my knowledge you can already define a default model per agent.
yindo commented 2026-02-16 17:35:34 -05:00
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@ambedded commented on GitHub (Nov 1, 2025):

ok thank you, do you know where i find the docs to configure the a model for each agent? then i close it here.

@ambedded commented on GitHub (Nov 1, 2025): ok thank you, do you know where i find the docs to configure the a model for each agent? then i close it here.
yindo commented 2026-02-16 17:35:34 -05:00
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@r1bilski commented on GitHub (Nov 13, 2025):

@ammannlu in case you haven't found it: https://opencode.ai/docs/agents/#json

{
  "agent": {
    "build": {
      "model": "anthropic/claude-sonnet-4-20250514"
    }
  }
}
@r1bilski commented on GitHub (Nov 13, 2025): @ammannlu in case you haven't found it: https://opencode.ai/docs/agents/#json ```json { "agent": { "build": { "model": "anthropic/claude-sonnet-4-20250514" } } } ```
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Reference: anomalyco/opencode#2425
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