4 people 4ecd8bf81b fix(chatgpt): preserve responses routing and recover empty output (#25403) (#26219) ...

- preserve existing shared backend `mode` when router deployment registration
  reuses a provider/model key already in `litellm.model_cost` (prevents alias
  with `mode: chat` from downgrading shared `chatgpt/gpt-5.4` from `responses`
  to `chat` and triggering 403s on /v1/chat/completions)
- teach the ChatGPT Responses parser to recover `response.output_item.done`
  entries when `response.completed.output` is empty
- add defensive /responses -> /chat/completions bridge fallback that
  reconstructs output items from raw SSE when `raw_response.output` is empty
- regression coverage for shared alias routing, empty completed.output
  parsing, and SSE bridge recovery

Closes #25403

Co-authored-by: afoninsky <andrey.afoninsky@gmail.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-20 14:23:41 +05:30

..

litellm_responses_transformation

fix(chatgpt): preserve responses routing and recover empty output (#25403) (#26219)

2026-05-20 14:23:41 +05:30

test_litellm_responses_transformation_transformation.py

fix(caching): replay openai/responses bridge cache hits as chat streams (#28158)

2026-05-18 16:27:06 -07:00