Comprehensive side-by-side LLM comparison
Claude Opus 4 leads with 39.2% higher average benchmark score. Claude 3 Sonnet offers 72.0K more tokens in context window than Claude Opus 4. Claude 3 Sonnet is $72.00 cheaper per million tokens. Overall, Claude Opus 4 is the stronger choice for coding tasks.
Anthropic
Claude 3 Sonnet was introduced as the balanced middle tier of the Claude 3 family, offering a combination of strong capabilities and operational speed. Designed to provide an optimal tradeoff between intelligence and performance for everyday tasks, it served as a versatile solution for a wide range of enterprise and consumer 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.
1 year newer

Claude 3 Sonnet
Anthropic
2024-02-29

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

Claude 3 Sonnet

Claude Opus 4
Context window and performance specifications
Average performance across 1 common benchmarks

Claude 3 Sonnet

Claude Opus 4
Available providers and their performance metrics

Claude 3 Sonnet
Anthropic
Bedrock

Claude 3 Sonnet

Claude Opus 4

Claude 3 Sonnet

Claude Opus 4

Claude Opus 4
Anthropic
Bedrock
ZeroEval