@ai-sdk/anthropic

Vercel AI SDK Anthropic Provider by Vercel

Vercel AI SDK Anthropic Provider package.

Live Registry Versionv4.0.87Previous: v4.0.86Published 2026-10-22

Stability Grade

B (78/100)

90-Day Velocity

116 releases

High release cadence

Dependencies

2 direct

NPM manifest

License

Apache-2.0

Verified on NPM

Recommended Exact Pin: npm install @ai-sdk/anthropic@4.0.87

NPM Registry ->GitHub Repo ->

TL;DR Verdict & Quick Citation Summary (2026-10-24)Source: AgentBreakWatch Live NPM Index

Vercel AI SDK Anthropic Provider (@ai-sdk/anthropic) is currently at v4.0.87 on NPM (published 2026-10-22), with a 90-day stability score of 78/100 (B) and MEDIUM schema drift risk across 116 releases in the past 90 days. v4 provider requires AI SDK 7+ and moves thinking budget configuration under providerOptions.anthropic.thinking. Production teams should pin npm install @ai-sdk/anthropic@4.0.87 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

v4 provider requires AI SDK 7+ and moves thinking budget configuration under providerOptions.anthropic.thinking.

Watched Exports / MCP Tool Signatures:

anthropicproviderOptions.anthropic.thinking

Before (Deprecated / Unpinned Pattern)

const model = anthropic("claude-3-7-sonnet-20250219", { sendReasoning: true });

After (Verified v4.0.87 Pattern)

const result = await generateText({
  model: anthropic("claude-sonnet-4-5"),
  providerOptions: { anthropic: { thinking: { type: "enabled", budgetTokens: 4000 } } }
});

Frequently Asked Questions: @ai-sdk/anthropic

What is the latest version of @ai-sdk/anthropic on NPM?

As of 2026-10-24, the latest stable version of @ai-sdk/anthropic (Vercel AI SDK Anthropic Provider by Vercel) on NPM is v4.0.87, published on 2026-10-22. It has shipped 116 releases in the last 90 days.

Does @ai-sdk/anthropic v4.0.87 have breaking changes or MCP schema drift risk?

@ai-sdk/anthropic currently carries a MEDIUM schema drift risk rating with a Stability Score of 78/100 (Grade B). v4 provider requires AI SDK 7+ and moves thinking budget configuration under providerOptions.anthropic.thinking.

How do I safely pin @ai-sdk/anthropic in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npm install @ai-sdk/anthropic@4.0.87` and monitor anthropic, providerOptions.anthropic.thinking for parameter or schema changes.

30-Min Registry & Schema Poller