Vercel AI SDK reference

Source: core repository guide, snapshot e58778bef40b. Synced 2026-10-24. Package versions are independent of milestone labels.

The Vercel AI provider connects ArtemisKit to any model supported by the Vercel AI SDK, giving you access to 20+ model providers through a unified interface.

Configuration

Environment Variables

Set the appropriate API key for your chosen provider:

# OpenAI models
OPENAI_API_KEY=sk-...

# Anthropic models
ANTHROPIC_API_KEY=sk-ant-...

# Google models
GOOGLE_GENERATIVE_AI_API_KEY=...

# And more - see Vercel AI SDK docs

Config File

artemis.config.yaml

provider: vercel-ai
model: openai:gpt-4o  # Format: provider:model

CLI Override

artemiskit run scenario.yaml --provider vercel-ai --model anthropic:claude-3-5-sonnet-20241022

Model Format

The Vercel AI provider uses the format provider:model:

openai:gpt-4o
anthropic:claude-3-5-sonnet-20241022
google:gemini-1.5-pro
mistral:mistral-large-latest

Supported Providers

Through Vercel AI SDK, you can access:

• OpenAI - openai:gpt-4o, openai:gpt-4o-mini
• Anthropic - anthropic:claude-3-5-sonnet-20241022, anthropic:claude-3-haiku-20240307
• Google - google:gemini-1.5-pro, google:gemini-1.5-flash
• Mistral - mistral:mistral-large-latest
• Cohere - cohere:command-r-plus
• Amazon Bedrock - bedrock:anthropic.claude-3-sonnet
• Azure - azure:deployment-name
• And many more…

See the Vercel AI SDK documentation for the full list.

Provider-Specific Options

Configure Vercel AI options in the providers.vercel-ai section:

artemis.config.yaml

provider: vercel-ai
model: openai:gpt-4o

providers:
  vercel-ai:
    temperature: 0.7      # Sampling temperature
    maxTokens: 4096       # Maximum tokens in response

Example

scenario.yaml

name: Multi-Provider Test
description: Testing with Vercel AI SDK

provider: vercel-ai
model: anthropic:claude-3-5-sonnet-20241022

cases:
  - id: basic-greeting
    prompt: "Say hello"
    expected:
      type: contains
      values:
        - "hello"
      mode: any

Use Cases

The Vercel AI provider is ideal for:

• Comparing models - Run the same scenario across different providers
• Provider flexibility - Switch providers without code changes
• Unified interface - One configuration style for all providers

Troubleshooting

Provider Not Found

Error: Provider 'xxx' not found

Ensure the provider prefix is correct. Check the Vercel AI SDK docs for exact provider names.

Missing API Key

Error: Missing API key for provider

Set the appropriate environment variable for your chosen provider.

Model Not Available

Error: Model not available

Verify the model name is correct and available for your account/region.