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Claude 4.1

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Anthropic's latest flagship model with enhanced agent tasks, code writing, and logical reasoning. Achieves 74.5% accuracy on SWE-bench Verify.

4.9rating
15M+users
8/6/2025Released
AnthropicCompany

Model Overview

Claude 4.1 represents Anthropic's most advanced AI model with breakthrough capabilities in agent tasks, code writing, and logical reasoning. Setting new benchmarks with 74.5% accuracy on SWE-bench Verify, it demonstrates superior performance in real-world software engineering tasks.

Advantages

  • Industry-leading SWE-bench performance
  • Advanced agent capabilities
  • Exceptional logical reasoning
  • Superior code generation quality
  • Strong safety guarantees

Disadvantages

  • Higher API costs
  • Rate limits on free tier
  • Requires careful prompt engineering
  • Limited availability during peak times

Model Information

Model SizeUndisclosed
Context Window200K tokens
ArchitectureConstitutional AI Transformer
Training DataAugust 2025

Use Cases

  • Advanced software engineering
  • Complex problem solving
  • AI agent development
  • Code review and optimization
  • Technical research
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