Add response-based fallback support for `FallbackModel`#3786

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sarth6 wants to merge 17 commits intopydantic:mainfrom

sarth6:fallback-on-response

Commits on Dec 20, 2025

Add `fallback_on_response` parameter to `FallbackModel`

sarth6
and
claude
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Add fallback_on_part for mid-stream fallback during streaming

sarth6
and
claude
committed

Commits on Dec 21, 2025