Comprehensive side-by-side LLM comparison
o3-pro offers 68.0K more tokens in context window than Claude Opus 4.1. Claude Opus 4.1 is $10.00 cheaper per million tokens. Claude Opus 4.1 is available on 4 providers. Both models have their strengths depending on your specific coding needs.
Anthropic
Claude Opus 4.1 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 72.7% across 8 benchmarks. It excels particularly in MMMLU (89.5%), TAU-bench Retail (82.4%), GPQA (80.9%). It supports a 232K token context window for handling large documents. The model is available through 4 API providers. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents Anthropic's latest advancement in AI technology.
OpenAI
o3-pro is a multimodal language model developed by OpenAI. It supports a 300K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI's latest advancement in AI technology.
1 month newer
o3-pro
OpenAI
2025-06-10
Claude Opus 4.1
Anthropic
2025-08-05
Cost per million tokens (USD)
Claude Opus 4.1
o3-pro
Context window and performance specifications
Average performance across 8 common benchmarks
Claude Opus 4.1
o3-pro
o3-pro
2024-05-31
Available providers and their performance metrics
Claude Opus 4.1
Anthropic
Bedrock
ZeroEval
Claude Opus 4.1
o3-pro
Claude Opus 4.1
o3-pro
o3-pro
OpenAI