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Anthropic

Creator of Claude AI assistant and Claude Code. Build with models featuring 200K context windows for complex reasoning and coding tasks.

Founded 2021
Foundation Models
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Models from Anthropic
3 models
Language models and AI systems created by this company
Claude Opus 4.1
Premium
1M tokens•$15.00/$75.00
  • • Best coding (72.5% SWE-bench)
  • • Long-running tasks
  • • Agent workflows
Claude Sonnet 4.5
Mid-tier
1M tokens•$3.00/$15.00
  • • Best coding/agents
  • • 72.7% SWE-bench
  • • 90% cache savings
Claude Haiku 4.5
Mid-tier
200K tokens•$1.00/$5.00
  • • Fastest
  • • Near Sonnet quality
  • • 90% cache savings
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Tools from Anthropic
Discover the AI tools and products you can use from this company
Claude
AI Assistants
Advanced AI assistant powered by Claude Sonnet 4.5 with extended thinking mode, Artifacts for interactive content, and agentic computer use capabilities. Features 200K context window and built-in web search for accurate, sourced information.
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Claude Code
Code Development
Agentic coding assistant that runs in browser, desktop (VS Code/JetBrains), and iOS. Handles complete software engineering workflows with GitHub integration, parallel task execution, and automatic PR creation. 90% of Claude Code itself is written by AI.
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Anthropic API
LLM APIs & Platforms
Claude API with extended thinking, prompt caching (90% cost savings), computer use, and 200K context. Access Claude Sonnet 4.5, Opus 4.1, and Haiku 4.5 via REST API or SDKs. Features Message Batches API for async processing and tool use for function calling.
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