GPT-5.5 and GPT-5.5 Pro arrive on Vercel AI Gateway
Vercel AI Gateway now supports GPT-5.5 and GPT-5.5 Pro, two token-efficient models tuned for long-running agentic tasks including coding, computer use, and research workflows.
Score breakdown
Access GPT-5.5's agentic coding and long-horizon capabilities — alongside unified usage tracking, failover, and observability — directly through Vercel AI Gateway's existing infrastructure.
- 01GPT-5.5 and GPT-5.5 Pro are now available on Vercel AI Gateway.
- 02Both variants are tuned for long-running agentic work across coding, computer use, knowledge work, and scientific research.
- 03Both models are more token-efficient than the previous generation.
Vercel AI Gateway now offers two new model variants — GPT-5.5 and GPT-5.5 Pro — both described as tuned for long-running agentic work across coding, computer use, knowledge work, and scientific research. Compared to the previous generation, both models are more token-efficient. GPT-5.5 is positioned for agentic coding and long-horizon tasks where the model must maintain context across a large system and carry changes through the surrounding codebase. Combined with computer-use capabilities, it can operate real software and convert raw material into documents, spreadsheets, or slide presentations.
GPT-5.5 Pro is aimed at demanding, multi-step workflows where response quality matters more than latency.
GPT-5.5 Pro is aimed at demanding, multi-step workflows where response quality matters more than latency. Early testing indicates improvements in business, legal, education, data science, and technical research scenarios — particularly tasks involving critiquing work over multiple passes and stress-testing arguments. Both models are available through the AI SDK using the identifiers `openai/gpt-5.5` and `openai/gpt-5.5-pro`.
Vercel AI Gateway itself provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations. It includes custom reporting, observability, Bring Your Own Key support, and intelligent provider routing with automatic retries.
Key facts
- 01GPT-5.5 and GPT-5.5 Pro are now available on Vercel AI Gateway.
- 02Both variants are tuned for long-running agentic work across coding, computer use, knowledge work, and scientific research.
- 03Both models are more token-efficient than the previous generation.
- 04GPT-5.5 is optimized for agentic coding and long-horizon tasks requiring large-codebase context.
- 05GPT-5.5 Pro prioritizes response quality over latency for multi-step, demanding workflows.
- 06Early testing shows GPT-5.5 Pro gains in business, legal, education, data science, and technical research workflows.
- 07Models are accessible via the AI SDK with identifiers `openai/gpt-5.5` and `openai/gpt-5.5-pro`.