Activity

1. opencode-agent commented on Oct 7, 2026

   

   opencode-agentBot

   on Oct 7, 2026 – with OpenCode Agent

   Contributor

   More actions

   Thanks for the detailed report and for finding the exact code path.

   This is about OpenCode v1 (1.18.35). v1 now only gets fixes for critical bugs such as data loss, security problems or breakage with no workaround. Since the model can still be switched in the TUI after resuming, this one is unlikely to be fixed in v1.

   Please consider moving to v2 (@opencode/cli, the opencode command). It's a separate implementation and handles startup flags differently: --agent and --model are applied when the app starts, before it opens the --session session. If you can reproduce the problem on v2 (2.x), or you think it is critical, please reply here with the v2 version and steps.

   Related issues, most closely related first:

   • Resuming a session after switching the global default model still uses the old recorded model (session.model) — blocks continuation when old model is unavailable #45204: resuming a session still uses the session's recorded model instead of a newly chosen one
   • fix(tui): keep session model stable when recents sync #52533: keeping the session model stable when recent models sync (TUI)
   • Desktop: model picker should follow the session model when changed externally #53372: the model picker should follow the session model when it is changed elsewhere
2. opencode-agent

   added

   pending close

   triaging

   on Oct 7, 2026
3. github-actions

   assigned

   kommander

   on Oct 7, 2026
4. glmn commented on Oct 7, 2026

   

   glmn

   on Oct 7, 2026

   Author

   More actions

   Thanks. Checked on v2 (@opencode/cli 2.0.24, Windows, --standalone, a local OpenAI-compatible stub with two providers):

   • opencode mini -s <id> --model fakeb/mb on a session last used with fakea/ma: footer shows model B and the next request goes to mb. So v2's mini interface handles it.
   • The default v2 interface doesn't accept --model / --agent at all (opencode --standalone -s <id> --model … prints the usage), so there's nothing to reproduce there.

   Closing #53807 since v1 won't take it. One question for v2, if it's useful: are --model / --agent planned for the full interface too (as in mini)? Wrappers that relaunch OpenCode on an existing session with a different model need one of them.
5. opencode-agent commented on Oct 7, 2026

   

   opencode-agentBot

   on Oct 7, 2026 – with OpenCode Agent

   Contributor

   More actions

   Thanks for testing on v2. Good to know that opencode mini -s <id> --model … works there.

   To answer your question: the full v2 interface doesn't support --model / --agent yet, and that's already tracked:

   • cli: restore --agent (and --model) on the full-screen TUI in v2 #53728: asks to bring back --agent and --model on the full v2 interface. It's open and gives the same reason as yours (wrapper scripts that start OpenCode with a chosen agent or model).
   • fix(cli): pass --model through to the TUI entry #48163: an open PR that adds --model/-m to the main opencode command and passes it through. It isn't merged yet and doesn't cover --agent.

   The v2 interface code already applies --model and --agent before it opens the --session session. So once the main command accepts these flags, relaunching on an existing session with a different model should work like mini does. I can't promise when that will happen. Until then, opencode mini is the way to do this on v2. You could also add a 👍 or your use case on #53728.

   The v1 behaviour reported here is still unlikely to be fixed, since v1 only gets critical fixes. This issue will be closed on that basis.
6. opencode-agent

   closed this as not plannedon Oct 8, 2026
7. opencode-agent commented on Oct 8, 2026

   

   opencode-agentBot

   on Oct 8, 2026 – with OpenCode Agent

   Contributor

   More actions

   Closing this as not planned. It's a v1 (1.18.35) behaviour, v1 only gets critical fixes, and there's a workaround: you can switch the model after resuming.

   On v2, your test showed that opencode mini -s <id> --model … already keeps the requested model. Support for --model / --agent on the full v2 interface is tracked in #53728, and there's an open PR adding --model there in #48163. Please follow those for your wrapper use case.

   Thanks for the clear report and for checking it on v2. If you see this again on v2, please open a new issue.