Vercel AI Updates: July 26, 2026

1. AI SDK Fixes Reasoning Token Reporting In The Anthropic Provider

Vercel. Vercel published a batch of AI SDK provider releases on July 26, led by @ai-sdk/anthropic 4.0.21, which corrects how the Anthropic provider accounts for thinking tokens so they are reported as reasoning token usage. Related provider packages including anthropic-aws, amazon-bedrock, and google-vertex were versioned in the same release batch. Accurate reasoning-token accounting matters for developers who track cost and usage when models return extended thinking output. Source