feat: vercel model provider

[awsarron]

Description

Adds a new VercelModel adapter that enables using any Vercel AI SDK Language Model v3 compatible provider with Strands Agents. This opens up the full ecosystem of Vercel AI SDK providers - Amazon Bedrock (@ai-sdk/amazon-bedrock), OpenAI (@ai-sdk/openai), Google (@ai-sdk/google), Anthropic (@ai-sdk/anthropic), and many more - as model backends for Strands agents.

The adapter translates between the Strands SDK message format and the Vercel LanguageModelV3 interface, supporting streaming responses, tool use, reasoning content, and multi-modal inputs (images, documents, video).

Usage:

import { Agent } from '@strands-agents/sdk'
import { VercelModel } from '@strands-agents/sdk/vercel'
import { bedrock } from '@ai-sdk/amazon-bedrock'

const agent = new Agent({
  model: new VercelModel(bedrock('us.anthropic.claude-sonnet-4-20250514-v1:0')),
})

@ai-sdk/provider is added as an optional peer dependency since it crosses the API boundary (users pass LanguageModelV3 instances to the constructor).

Related Issues

strands-agents/sdk-typescript#702
strands-agents/sdk-typescript#214
strands-agents/sdk-typescript#540

Type of Change

• New content

Checklist

• I have read the CONTRIBUTING document
• My changes follow the project's documentation style
• I have tested the documentation locally using npm run dev
• Links in the documentation are valid and working

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[github-actions]

Issue: This snippet uses openai without including the import statement. Users copying this code won't have the necessary import.

Suggestion: Add the imports inside the snippet markers:

// --8<-- [start:config_example]
import { Agent } from '@strands-agents/sdk'
import { VercelModel } from '@strands-agents/sdk/vercel'
import { openai } from '@ai-sdk/openai'

const model = new VercelModel(openai('gpt-4o'), {
  // ...

[github-actions]

Issue: Same as above - this snippet uses openai without including the import statement.

Suggestion: Include imports inside the snippet so users can copy the complete example.

[github-actions]

Assessment: Comment

Well-structured documentation for the Vercel AI SDK model provider integration. The content follows the project's documentation patterns and provides comprehensive coverage of installation, usage, configuration, and troubleshooting.

Review Summary

• Completeness: The documentation covers all essential aspects including multiple provider examples, configuration options, streaming, and a helpful compatible providers table
• Structure: Appropriate use of languages: TypeScript frontmatter for this TypeScript-only feature
• Minor Issue: Two code snippets (config_example and streaming) are missing import statements, which would cause copy-paste errors for users

Nice work on the documentation - clear, well-organized, and comprehensive! 👍

[github-actions]

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Updated at: 2026-03-20T15:27:49.515Z

[awsarron]

Preview at https://d3ehv1nix5p99z.cloudfront.net/pr-cms-689/docs/user-guide/concepts/model-providers/vercel-ai-sdk/