ToolsOctober 15, 2025via Vercel Blog
Claude Haiku 4.5 now available in Vercel AI Gateway
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.
Key signals
- Claude 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
The hook
Claude Haiku 4.5 just matched Sonnet 4 on coding tasks. Vercel AI Gateway made it accessible without switching providers.
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…