fix(docs): update reasoning property names to match API 5.0 #10966
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Replace deprecated `reasoning` and `reasoningDetails` properties with new `reasoningText` and `reasoning` properties across all documentation and examples to align with AI SDK 5.0 migration guide. Fixes vercel#10842
vercel-ai-sdk
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ai/provider
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lgrammel
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Dec 8, 2025
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Background
The AI SDK 5.0 introduced breaking changes to the reasoning property names in
generateText()andstreamText()responses. The migration guide documents these changes, but several documentation files and examples were still using the old property names, which would confuse developers trying to use the latest API version.Summary
Replace deprecated
reasoningandreasoningDetailsproperties with newreasoningTextandreasoningproperties across all documentation and examples to align with AI SDK 5.0 migration guide.Manual Verification
✅ Verified all occurrences of old property names have been
✅ Confirmed changes match the migration guide
Checklist
pnpm changesetin the project root)Related Issues
Fixes #10842