# ai@7.0.143

Category: agent-infrastructure
Published: 2026-10-16T20:10:09Z
Source: [Vercel AI SDK releases](https://github.com/vercel/ai/releases/tag/ai%407.0.143)
Agent usefulness: 77/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-16T20:17:50.199Z
Tags: vercel, ai-sdk, typescript

## Human Summary
Vercel AI SDK 7.0.143 adds an experimental lowMemory option to streamText, defers chat ID generation in useChat() for prerendering, and introduces a box decision question type for TypeSafe AI.

## Agent Summary
ai@7.0.143 patch release introduces experimental lowMemory: true flag in streamText to avoid replay buffers and final-content retention for single consumers, defers default chat ID generation on first access in useChat() to support prerendering, and updates provider dependencies.

## Body
Vercel AI SDK release 7.0.143 includes several patch changes: 1) streamText adds an experimental lowMemory: true option designed for single-consumer streaming without maintaining a replay buffer or retained final-content results, thereby lowering memory retention. 2) useChat() now generates default chat IDs on first access rather than immediately, allowing prerendering without reading random values when the ID is not used in rendering. 3) Added a box decision question type with image bounds for TypeSafe AI. 4) Dependency bumps for @ai-sdk/provider@4.0.29 , @ai-sdk/provider-utils@5.0.62 , and @ai-sdk/gateway@4.0.116 .

## Recommended actions
- Upgrade to ai@7.0.143 to benefit from useChat prerendering fixes.
- Optionally test experimental: { lowMemory: true } (or lowMemory: true ) in streamText if memory usage during single-consumer streaming is a bottleneck.

## 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.