Claude Fable 5.1 now available on AI Gateway
UpdateVerifiedAdded Sep 22, 2026
Claude Fable 5.1 from Anthropic is now available on AI Gateway. Fable 5.1 improvements compared to previous Claude models are concentrated in long, multi-stage work like agentic coding, knowledge work, and research that takes several rounds of searching and following up. Anthropic ships Fable 5.1 with cybersecurity and biology safety classifiers enabled.
Topics: AI agents, LLMs, Security, Developer tools, Coding agents
Summaries of vendors' own notes. Product names and logos belong to their owners; logos via logo.dev.
More AI SDK and AI Gateway releases
Every AI SDK and AI Gateway release| Date | Release | Type |
|---|---|---|
| Sep 1 | Qwen 3.8 Max 0902 now available on AI Gateway Update | Update |
| Sep 2 | Muse Spark 1.3 now available on AI Gateway Update | Update |
| Sep 2 | GLM-5.3 is 50% off through DigitalOcean on AI Gateway Update | Update |
| Sep 2 | Gemini 3.8 Flash now available on AI Gateway Update | Update |
| Aug 31 | fx is now available in the AI SDK harness layer Update | Update |
| Aug 31 | Set per-user budgets on AI Gateway Update | Update |
| Aug 31 | Vercel Sandbox now calculates snapshot storage costs daily Update | Update |
| Sep 3 | Cursor Cloud Agents can now run in Vercel Sandbox Update | Update |
