Comprehensive side-by-side LLM comparison
Claude Opus 4 leads with 3.7% higher average benchmark score. Claude 3.7 Sonnet is $72.00 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
Anthropic
Claude 3.7 Sonnet represents Anthropic's first hybrid reasoning model, capable of producing near-instant responses or extended step-by-step thinking that is visible to users. Developed with particularly strong improvements in coding and front-end web development, it allows users to control thinking budgets and balances real-world task performance with reasoning capabilities for enterprise applications.
Anthropic
Claude Opus 4 was developed as the flagship model in the Claude 4 generation, designed to push the boundaries of AI capability in complex reasoning, analysis, and multi-step problem-solving. Built to handle the most demanding enterprise tasks, it represents Anthropic's highest tier of intelligence and capability.
2 months newer

Claude 3.7 Sonnet
Anthropic
2025-02-24

Claude Opus 4
Anthropic
2025-05-22
Cost per million tokens (USD)

Claude 3.7 Sonnet

Claude Opus 4
Context window and performance specifications
Average performance across 7 common benchmarks

Claude 3.7 Sonnet

Claude Opus 4
Performance comparison across key benchmark categories

Claude 3.7 Sonnet

Claude Opus 4
Available providers and their performance metrics

Claude 3.7 Sonnet
Anthropic
Bedrock
ZeroEval

Claude 3.7 Sonnet

Claude Opus 4

Claude 3.7 Sonnet

Claude Opus 4

Claude Opus 4
Anthropic
Bedrock
ZeroEval