Claude Haiku 4.5 now available in Vercel AI Gateway
Claude Haiku 4.5 just matched Sonnet 4 on coding tasks. Vercel AI Gateway made it accessible without switching providers.

Why it matters
Anthropic's cost-optimized model tier is now accessible through Vercel's unified inference layer, lowering friction for developers building agent and coding applications while maintaining enterprise-grade reliability features.
The key facts
7 to knowClaude Haiku 4.5 matches Sonnet 4 performance on coding, computer use, and agent tasks
Substantially lower cost and faster speeds vs Sonnet 4
Available via Vercel AI Gateway with unified API, no additional provider accounts required
Single string update required: anthropic/claude-haiku-4.5
AI Gateway features: observability, bring-your-own-key support, intelligent provider routing, automatic retries, failover optimization
Gateway routes through multiple providers: Anthropic, AWS Bedrock, Google Vertex AI
Release date: October 15, 2025
Go to the source
Vercel Blogvercel.com
Publisher excerpt: You can now access Anthropic's latest model, Claude Haiku 4.5 using Vercel's with no other provider accounts required. Haiku 4.5 matches Sonnet 4's performance on coding, computer use, and agent tasks at substantially lower cost and faster speeds.AI Gateway AI Gateway lets you call the model with a…