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Vercel AI Gateway adds Claude Opus 5.5 with fast mode

Vercel AI Gateway now supports anthropic/claude-opus-5.5 with a fast mode, which Vercel says is stronger at agentic coding and knowledge work at lower cost.

Vercel Developers

@vercel_devArchived 2026.09.23Originally posted 2026.09.23

Vercel Developers @vercel_devOriginally posted 2026.09.23

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Opus 5.5 is now on AI Gateway, with support for fast mode. Stronger agentic coding and knowledge work, at lower cost and faster speed than previous Opus versions. 𝚊𝚗𝚝𝚑𝚛𝚘𝚙𝚒𝚌/𝚌𝚕𝚊𝚞𝚍𝚎-𝚘𝚙𝚞𝚜-𝟻.𝟻 https://t.co/iC4IXdUxQT

x.com/vercel_dev/status/2102440478356717766Archived 2026.09.23 10:42