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Vercel is building the durable-execution layer — and just learned its model catalog isn't its own.

durable-workflowsserverless-limitsai-gatewayframework-integrationsmarketplace
◆Current state
The Workflow SDK is where most of the engineering is going: TanStack Start support, native Nitro v3 integration that runs steps inside the app's own bundle, and AbortController-based cancellation across workflow and step boundaries in the version 5 beta. Alongside it, Functions on Node.js and Python gained execution times up to 30 minutes for Pro and Enterprise, and Auth0 joined the Marketplace. Separately, Claude Fable 5 was suspended on AI Gateway in compliance with a US Government directive.
◆Where it's heading
Vercel is extending from request-response hosting into long-running work. The 30-minute ceiling and cancellation semantics are the primitives durable workflows need, and the Nitro integration removes the separate-bundle seam that made workflows feel bolted on. The AI Gateway sits on a different footing: it is a reseller position, and the Fable 5 suspension showed that the catalog it offers is set by parties outside Vercel.
◆Prediction
Expect the Workflow SDK to reach general availability with more framework adapters, and the 30-minute limit to extend to the remaining runtimes as the entry indicates. On the gateway side, the entries give no basis for predicting whether the suspended model returns — Vercel itself says it does not know.

◆Recent moves

  1. 1mo ago

    Workflow SDK now supports inflight cancellation

    Workflow SDK 5 beta wires standard AbortController and AbortSignal semantics across workflow and step boundaries. Cancellation is table stakes for long-running execution, and its arrival marks the SDK moving from demo-grade to operable.

    View source ↗
  2. 1mo ago

    Workflow SDK now supports TanStack Start

    TanStack Start joins the frameworks the Workflow SDK supports. Coverage work that widens who can adopt workflows without changing what they do.

    View source ↗
  3. 1mo ago

    Vercel Functions can now run up to 30 minutes

    Node.js and Python functions can now run for 30 minutes on Pro and Enterprise, more than doubling the previous 800-second ceiling. It is a limit change rather than a new capability, but it is the limit that decided which workloads could not run on Vercel at all.

    View source ↗
  4. 1mo ago

    Auth0 joins the Vercel Marketplace

    Auth0 becomes a few-click add-on through the Marketplace. Routine partner expansion of the integration surface rather than a platform change.

    View source ↗
  5. 2mo ago

    Workflow SDK now runs natively in Nitro v3

    Workflow steps now run inside Nitro v3's own bundled runtime instead of a separate bundle, so server-side APIs like useStorage() work directly inside step functions. It removes the boundary that made workflows a second environment to reason about.

    View source ↗
  6. 2mo ago

    Claude Fable 5 access suspended on AI Gateway

    ⚡ SPARK

    Claude Fable 5 was suspended on AI Gateway for all users in compliance with a US Government directive, with no stated timeline for restoration. It is the clearest demonstration yet that a gateway's catalog is not fully under the gateway operator's control.

    View source ↗