GPT 5.5 on AI Gateway
GPT-5.5 is now live on Vercel's AI Gateway. Two variants optimized for agents, coding, and multi-step knowledge work.

Why it matters
OpenAI's latest model is shipping through Vercel's unified API layer, expanding distribution and making agentic AI more accessible to developers building production workflows. The Pro variant targets quality-over-speed use cases in business, legal, and research.
The key facts
8 to knowGPT-5.5 and GPT-5.5 Pro available via Vercel AI Gateway
Tuned for agentic work: coding, computer use, knowledge work, scientific research
More token-efficient than previous generation
GPT-5.5 Pro: multi-step workflows with emphasis on response quality over latency
Early gains reported in business, legal, education, data science, technical research
Supports computer-use capabilities (document/spreadsheet/presentation generation)
Available via OpenAI SDK (openai/gpt-5.5 and openai/gpt-5.5-pro)
AI Gateway features: unified API, usage tracking, cost monitoring, intelligent provider routing, custom reporting
Go to the source
Vercel Blogvercel.com
Publisher excerpt: GPT-5.5 is now available on .Vercel AI Gateway There are 2 variants: GPT-5.5 and GPT-5.5 Pro. Both models are tuned for long-running agentic work across coding, computer use, knowledge work, and scientific research, and are more token-efficient than the previous generation. GPT-5.5 is stronger at…