Bedrock Converse reasoning replay when switching Claude to GPT
Cluster 140177 · agent. Data as of
Nothing open on GitHub. Fix merged in #142139 on 20 Oct 2026. Check it covers your case.
The short answer
- Known?
- Yes. 3 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #142139. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #142139. That is separate from the fix event. - Still open
- Nothing open on GitHub.
These members center on Bedrock Converse sessions where prior Claude reasoning content (reasoningText) is replayed after switching to a GPT model, which the issue reports GPT rejecting. The two pull requests propose changes to omit or limit replaying earlier reasoning depending on the target model, including the gpt-6 family.
Open issues0
Open PRs0
Fixes on record
-
#142139 fix(bedrock): replay reasoning across Claude/GPT switches only where the target can take it
files:
agent/bedrock_adapter.py,agent/chat_completion_helpers.py,tests/agent/test_bedrock_adapter.py,tests/agent/test_bedrock_converse_reasoning_replay.py
1 PR closed without merging
From the close comments: done elsewhere 1
-
#140228 fix(bedrock): strip prior reasoning for the gpt-6 family on Converse · done elsewhere →
#142139
Closed issues · 1
- Closed#140177[Bug]: Bedrock Converse: switching Claude → GPT mid-session fails every turn — Claude's reasoningText is replayed and GPT rejects it
How this cluster was grouped
-
Link evidence (
structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference. -
Pairwise link density
0.67: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36.1.00means every pair is linked.
Pick up a Lab task
Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.
Open the LabAt a glance
- Subsystem
- agent
- Merged PRs
- #142139
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 20 Oct 2026