Vercel added Claude Fable 5.2 and Meta Muse Ember to AI Gateway and increased its container registry limit for individual compressed layers. Teams evaluating the releases should check retention requirements before choosing Fable, measure Ember on repeatable tasks, and check each container layer against the new limit.
Coverage uses the preceding calendar day, 9 November 2026. The announcements specify dates without exact publication times.
Fable 5.2 requires retention
Vercel says Anthropic retains prompts and completions for 30 days without using them to train Claude. AI Gateway returns an error for Fable 5.2 requests from teams with Zero Data Retention enabled. Check the data policy for the workload before selecting this route.
https://vercel.com/changelog/claude-fable-5-2-now-available-on-ai-gateway
Muse Ember targets repeatable agent tasks
The Gateway release describes Ember as a lightweight reasoning model for bounded coding and document tasks. It accepts text, images and video, supports tool calling and has a one-million-token context window. Evaluate accuracy and total task time on representative inputs. Context capacity alone does not establish that the model will reliably use all supplied material.
https://vercel.com/changelog/muse-ember-now-available-on-ai-gateway
Individual compressed layers can reach 2 GB
Vercel Container Registry increased the per-layer limit from 500 MB to 2 GB. The total image limit remains 15 GB. Check compressed layer sizes and total size separately before relying on the higher ceiling. Compare pull times on a clean runner if you plan to ship larger layers.
https://vercel.com/changelog/vercel-container-registry-now-supports-2-gb-compressed-image-layers