# Claude Opus 5.5 now available on AI Gateway

Publisher-attributed story with a reviewed brief or permitted publisher paragraph. The original publisher is responsible for the linked reporting.

- Publisher: Vercel
- Author credit: Rohan Taneja; Zachary Chen; Jerilyn Zheng
- Category: AI
- Original publication time: 2026-09-22T00:00:00Z
- Original update time: 2026-09-22T00:00:00Z
- First observed by NexusTechWire: 2026-10-01T20:28:47Z
- Original source: https://vercel.com/changelog/claude-opus-5-5-now-available-on-ai-gateway
- NexusTechWire record: https://nexustechwire.com/news/news-ae02823c802896a3182b

## The brief

Claude Opus 5.5 is available through Vercel AI Gateway with a one-million-token context and up to 128,000 output tokens. Integrators must account for two compatibility changes: thinking is always adaptive, and forced tool selection is unsupported. Requests that disable thinking, specify a fixed reasoning budget or require a particular tool can fail. Vercel recommends structured outputs for workflows that previously forced tools to obtain JSON.

AI-assisted NexusTechWire summary, checked against the linked source on 2026-10-01T22:12:02.054Z. Not independent reporting.

Read the full original: [Vercel](https://vercel.com/changelog/claude-opus-5-5-now-available-on-ai-gateway)

This record does not reproduce the complete article or represent independent confirmation of every source claim.