Vercel AI SDK 3.3 – Vercel

The Vercel AI SDK is a toolkit for building AI applications with JavaScript and TypeScript. Its unified API allows you to use any language model and provides powerful UI integrations into leading web frameworks such as Next.js and Svelte.

We have also added AWS Bedrock and Chrome AI (community) model providers as well as many smaller features and additions. You can find all changes including minor features in our changelog.

Given the non-deterministic nature of language models, observability is critical for understanding and developing AI applications. You need to be able to trace and understand timing, token usage, prompts, and response content for individual model calls.

The Vercel AI SDK now supports tracing with OpenTelemetry, an open-source standard for recording telemetry information, as an experimental feature. Here is an example of how trace visualization looks with the Vercel Datadog integration:

You can analyze the AI SDK tracing data with Vercel observability integrations such as Datadog, Sentry, and Axiom. Alternatively, you can use LLM observability providers such as LangFuse, BrainTrust, or LangSmith.

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