Show which model actually answered - #1
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Claude Code can switch models mid-conversation: when the safety classifiers refuse a request on Fable 5, the CLI re-runs it on Opus. OpenCode kept showing the requested model, so the user never knew. Surface the real model as a short callout after the answer: - model switched: system/model_refusal_fallback (models, category, scope) - model refused: model_refusal_no_fallback, turn ended with an error - model mismatch: init.model or assistant.message.model differs from the user's pick (catches switches the CLI does not announce) One note per leg, after the text so it cannot land inside a code fence. OPENCODE_CLAUDE_MODEL_NOTES=reasoning moves it to the thinking trace. system/notification events (medium+) go to the reasoning trace as [notice].
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Claude Code can switch models mid-conversation: when the safety classifiers refuse a request on Fable 5, the CLI silently re-runs it on Opus. OpenCode keeps displaying the model the user picked, so there is no way to tell.
This adds a short callout at the end of the answer whenever the answering model differs from the selected one:
model switched- from the SDKmodel_refusal_fallbackevent (models, safeguard category, scope).model refused-model_refusal_no_fallback: the turn ended with an error and no retry ran.model mismatch(answer starts on X) -init.modeldiffers from the user's pick: the session was left on a fallback model by an earlier turn.model mismatch(answered by X) -assistant.message.modeldiffers from what was announced: catches switches the CLI doesn't report.One note per leg, always after the text so it can't land inside a code fence.
OPENCODE_CLAUDE_MODEL_NOTES=reasoningmoves it into the thinking trace instead. CLIsystem/notificationevents (medium+) are forwarded to the reasoning trace as[notice].Seen live with CLI 2.1.237: bio -> claude-opus-5, cyber -> claude-opus-4-8.