Comprehensive side-by-side LLM comparison
o4-mini leads with 19.4% higher average benchmark score. Claude Opus 4 offers 28.0K more tokens in context window than o4-mini. o4-mini is $84.50 cheaper per million tokens. Claude Opus 4 is available on 4 providers. Overall, o4-mini is the stronger choice for coding tasks.
Anthropic
Claude Opus 4 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 64.6% across 9 benchmarks. It excels particularly in MMMLU (88.8%), TAU-bench Retail (81.4%), GPQA (79.6%). It supports a 328K 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
o4-mini is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 66.5% across 14 benchmarks. It excels particularly in AIME 2024 (93.4%), AIME 2025 (92.7%), MathVista (84.3%). 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
o4-mini
OpenAI
2025-04-16
Claude Opus 4
Anthropic
2025-05-22
Cost per million tokens (USD)
Claude Opus 4
o4-mini
Context window and performance specifications
Average performance across 18 common benchmarks
Claude Opus 4
o4-mini
o4-mini
2024-05-31
Available providers and their performance metrics
Claude Opus 4
Anthropic
Bedrock
ZeroEval
Claude Opus 4
o4-mini
Claude Opus 4
o4-mini
o4-mini
OpenAI