OpenCode Time To First Token and Thinking is very slow #48328

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1. github-actions

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   MrMushrooooom

   on Sep 10, 2026
2. github-actions commented on Sep 10, 2026

   

   github-actionsBot

   on Sep 10, 2026 – with GitHub Actions

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

   • OpenCode Zen requests take ~5 minutes and sometimes throw UnsupportedContentType (Desktop v1.14.29, Windows) #39178: OpenCode Zen requests take ~5 minutes on Windows 11 — very similar report of Zen being extremely slow
   • Performance Regression: Extremely Slow "Thinking" Phase After Updating to v1.17.20 #36815: Extremely slow "Thinking" phase (performance regression) — slow TTFT / thinking phase across providers
   • Expose stream timeout/retry state to users — silent infinite retry leaves UI stuck on "thinking" for 20+ min (opencode-go/hy3, Desktop v1.18.23) #45514: UI stuck on "thinking" indefinitely due to silent stream timeouts/retries with third-party providers
   • Currently experiencing halted and slow inference in OpenCode Go #34667: Halted and slow inference in OpenCode Go on Windows — slow/paused generation similar to this report

   If your issue is specifically about the UI hanging with no visible error while the provider silently retries, #45514 is likely the closest match.
3. Animuni-Express commented on Sep 12, 2026

   

   Animuni-Express

   on Sep 12, 2026

   Last edited by Animuni-Express

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   it is similar to #36815 or #45514
4. thdxr commented on Oct 11, 2026

   

   thdxr

   on Oct 11, 2026

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   Thanks for the report! OpenCode 2.0 is now out and development is focused on V2, so we're closing issues filed against OpenCode 1. Please upgrade (opencode upgrade --major, details: https://anoma.ly/notes/opencode-2-0), and if this is still relevant on 2.0, reopen this issue or open a new one with your 2.0 version.

   — from 𝕺𝖕𝖊𝖓𝕮𝖔𝖉𝖊
5. thdxr

   closed this as not plannedon Oct 11, 2026