Claude 2 / 2.1: Improved Reasoning

Quick Facts

• Released: 2023 (2.1 in Sept)
• Architecture: Improved over Claude 1
• Context: 100K tokens
• Capabilities: Better reasoning, longer documents

Improvements Over Claude 1

• Better math reasoning
• Improved code understanding
• Larger context window
• More capable while maintaining safety

Performance

• 88.3% on MMLU
• Strong on reasoning tasks
• Good for document analysis
• Reliable for production

Status

Production-ready, good balance of capability and cost.