Vercel AI Gateway adds Claude Fable 5.2 and Meta's Muse Ember models

Vercel added Claude Fable 5.2 and Meta's Muse Ember model to its AI Gateway on November 9, 2026, publishing the change in a changelog entry titled Claude Fable 5.2 now available on AI Gateway.

What changed

• Vercel's changelog entry "Claude Fable 5.2 now available on AI Gateway" is dated November 9, 2026.
• Claude Fable 5.2 can now be called through AI Gateway using a single API key, with no separate Anthropic provider account required.
• Meta's Muse Ember model joined AI Gateway the same day, documented in the separate entry Muse Ember now available on AI Gateway, also dated November 9, 2026.
• Both Claude Fable 5.2 and Muse Ember requests made through AI Gateway come with automatic fallbacks, spend tracking and request traces.
• Both changelog entries are published as individual, permalinked items on Vercel's public changelog.

What it means for people who build with AI

For developers building on Vercel, the addition means instant, unified access to two newly released models from different vendors, Anthropic and Meta, without setting up separate provider accounts or billing. Routing both models through one API key with built-in fallbacks, spend tracking and request traces makes it easier to compare the models or combine them within the same application.

Sources

• Claude Fable 5.2 now available on AI Gateway (Vercel, November 9, 2026, official)
• Muse Ember now available on AI Gateway (Vercel, November 9, 2026, official)

Written with AI assistance, strictly from the sources listed above. Before it went live, automated checks verified its dates, sources and every language edition.