Loading...
  • Messages
  • Managed Agents
  • Admin
Search...
⌘K
Models
Models overviewModel IDs and versioningChoosing a modelWhat's new in Claude Opus 4.7Upgrade between model versionsModel deprecationsModel cardsSystem promptsPricing
Log in
Model cards
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...

Solutions

  • AI agents
  • Code modernization
  • Coding
  • Customer support
  • Education
  • Financial services
  • Government
  • Life sciences

Partners

  • Amazon Bedrock
  • Google Cloud's Vertex AI

Learn

  • Blog
  • Courses
  • Use cases
  • Connectors
  • Customer stories
  • Engineering at Anthropic
  • Events
  • Powered by Claude
  • Service partners
  • Startups program

Company

  • Anthropic
  • Careers
  • Economic Futures
  • Research
  • News
  • Responsible Scaling Policy
  • Security and compliance
  • Transparency

Learn

  • Blog
  • Courses
  • Use cases
  • Connectors
  • Customer stories
  • Engineering at Anthropic
  • Events
  • Powered by Claude
  • Service partners
  • Startups program

Help and security

  • Availability
  • Status
  • Support
  • Discord

Terms and policies

  • Privacy policy
  • Responsible disclosure policy
  • Terms of service: Commercial
  • Terms of service: Consumer
  • Usage policy

Model cards

Claude Opus 4.7 System Card

Detailed documentation of Claude Opus 4.7.

Claude Sonnet 4.6 System Card

Detailed documentation of Claude Sonnet 4.6.

Claude Opus 4.5 System Card

Detailed documentation of Claude Opus 4.5.

Claude Haiku 4.5 System Card

Detailed documentation of Claude Haiku 4.5.

Claude Sonnet 4.5 System Card

Detailed documentation of Claude Sonnet 4.5.

Claude Opus 4.1 System Card

Detailed documentation of Claude Opus 4.1.

Claude 4 System Card

Detailed documentation of Claude 4 models.

Claude Sonnet 3.7 System Card

System card for Claude Sonnet 3.7 with performance and safety details.

Claude 3 Model Card

Detailed documentation of Claude 3 models including latest 3.5 addendum.

Learning resources

Quickstarts

Deployable applications built with the API.

Resources for AI ingestion

Courses

Step by step lessons on building with Claude.

Cookbook

Replicable code samples and implementations.

Use case guides

In-depth production guides for building common use cases with Claude.

Glossary

Key terms and concepts for working with Claude and language models.

API primer for Claude ingestion

Concise API guide meant for ingestion by Claude.

Claude API Docs Overview

Concise overview of Claude API documentation, optimized for LLM ingestion.

llms.txt

LLM-optimized documentation index.