fix: add missing /openai path segment to Bedrock Mantle base URL#2706
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fix: add missing /openai path segment to Bedrock Mantle base URL#2706kagura-agent wants to merge 1 commit into
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…late The _MANTLE_BASE_URL_TEMPLATE was missing the /openai path segment, producing URLs like bedrock-mantle.<region>.api.aws/v1/responses instead of bedrock-mantle.<region>.api.aws/openai/v1/responses. This caused 400 validation_error for OpenAI Responses API models (e.g. openai.gpt-5.4) routed through Bedrock Mantle, even though those models genuinely support the Responses API. Fixes strands-agents#2629 Signed-off-by: kagura-agent <kagura.agent.ai@gmail.com>
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Summary
Fixes the
_MANTLE_BASE_URL_TEMPLATEin_openai_bedrock.pywhich was missing the/openaipath segment, causing400 validation_errorfor OpenAI Responses API models (e.g.openai.gpt-5.4) routed through Bedrock Mantle.Before:
https://bedrock-mantle.{region}.api.aws/v1After:
https://bedrock-mantle.{region}.api.aws/openai/v1Changes
strands-py/src/strands/models/_openai_bedrock.py: Updated URL templatestrands-py/tests/strands/models/test_openai.py: Updated 4 test assertionsstrands-py/tests/strands/models/test_openai_responses.py: Updated 4 test assertionsstrands-py/tests_integ/models/test_model_mantle.py: Updated docstring URLTesting
All 20 Bedrock Mantle config tests pass (10 for OpenAIModel + 10 for OpenAIResponsesModel).
Fixes #2629