Comprehensive side-by-side LLM comparison
Claude Opus 4.1 leads with 30.5% higher average benchmark score. Claude 3 Opus offers 168.0K more tokens in context window than Claude Opus 4.1. Both models have similar pricing. Overall, Claude Opus 4.1 is the stronger choice for coding tasks.
Anthropic
Claude 3 Opus was developed as the most capable model in the Claude 3 family, designed to set new industry benchmarks across a wide range of cognitive tasks. Built to handle complex analysis and extended tasks requiring deep reasoning, it balanced frontier intelligence with careful safety considerations, representing the flagship tier of the Claude 3 generation.
Anthropic
Claude Opus 4.1 represents an iteration within the Claude 4 Opus line, built to deliver refined performance in complex reasoning and analysis tasks. Developed as part of Anthropic's flagship tier, it incorporates improvements to the foundational capabilities that define the Opus family of models.
1 year newer

Claude 3 Opus
Anthropic
2024-02-29

Claude Opus 4.1
Anthropic
2025-08-05
Cost per million tokens (USD)

Claude 3 Opus

Claude Opus 4.1
Context window and performance specifications
Average performance across 1 common benchmarks

Claude 3 Opus

Claude Opus 4.1
Available providers and their performance metrics

Claude 3 Opus
Anthropic
Bedrock

Claude 3 Opus

Claude Opus 4.1

Claude 3 Opus

Claude Opus 4.1

Claude Opus 4.1
Anthropic
Bedrock
ZeroEval