Use GPT 5.4 Mini and Nano on AI Gateway
OpenAI's GPT-5.4 Mini and Nano are now live on Vercel AI Gateway—built for sub-agent workflows that need to scale cost-efficiently.
Why it matters
Two new lightweight models shipping on a major developer infrastructure platform extend OpenAI's model family into cost-optimized territory for agentic workloads. This is a product/availability expansion, not a capability release—the real news is deployment-ready access and integration with Vercel's observability and routing layer.
The key facts
6 to knowGPT-5.4 Mini and GPT-5.4 Nano now available on Vercel AI Gateway
Both models optimized for coding, tool orchestration, and multi-step browser interactions
GPT-5.4 Nano positioned as lower-cost alternative to Mini, suited for high-volume parallel sub-agent workflows
Models support verbosity and reasoning level parameters for control over response detail
Integration includes observability, BYOK support, intelligent provider routing, and automatic retries
Vercel AI Gateway provides unified API for cost tracking and failover optimization
Go to the source
Vercel Blogvercel.com
Publisher excerpt: GPT-5.4 Mini and GPT-5.4 Nano from OpenAI are now available on . Both models deliver state-of-the-art performance for their size class in coding and computer use, and are built for sub-agent workflows where multiple smaller models coordinate on parts of a larger task.Vercel AI Gateway The models…