# @ai-sdk/xai@5.0.16

Category: agent-infrastructure
Published: 2026-10-06T22:27:23Z
Source: [Vercel AI SDK releases](https://github.com/vercel/ai/releases/tag/%40ai-sdk%2Fxai%405.0.16)
Agent usefulness: 77/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-07T00:17:56.789Z
Tags: vercel, ai-sdk, typescript

## Human Summary
Vercel AI SDK releases published @ai-sdk/xai@5.0.16. Patch Changes 268225c : feat(provider): add a portable max reasoning level with native provider mappings, compatibility coercions, and budget-based fallback support. Compatibility notes: TypeScript source compatibility: Adding max widens LanguageModelV4CallOptions 'reasoning' and the derived…

## Agent Summary
Treat @ai-sdk/xai@5.0.16 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.

## Body
Vercel AI SDK releases published @ai-sdk/xai@5.0.16. This automated release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: Patch Changes 268225c : feat(provider): add a portable max reasoning level with native provider mappings, compatibility coercions, and budget-based fallback support. Compatibility notes: TypeScript source compatibility: Adding max widens LanguageModelV4CallOptions 'reasoning' and the derived ReasoningLevel type. Third-party providers and consumers with exhaustive switches or Record mappings must handle max before upgrading. Ordinary calls using existing reasoning levels remain accepted. Amazon Bedrock: Existing Nova 2 calls using portable reasoning: 'xhigh' now send maxReasoningEffort: 'high' instead of the unsupported 'max' , and return a compatibility warning. Anthropic and OpenAI Bedrock effort mappings retain their existing xhigh behavior. Partial Bedrock reasoning configurations continue to preserve explicit values and derive missing fields; explicit effort/budget overrides and…

## Recommended actions
- Review the official Vercel AI SDK releases release notes before upgrading.
- Check compatibility, migration, and security notes against your current agent stack.
- Run focused regression tests before production rollout.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.