Comprehensive side-by-side LLM comparison
o3-mini leads with 32.2% higher average benchmark score. Claude 3.5 Haiku offers 100.0K more tokens in context window than o3-mini. Claude 3.5 Haiku is $0.70 cheaper per million tokens. Overall, o3-mini is the stronger choice for coding tasks.
Anthropic
Claude 3.5 Haiku is a language model developed by Anthropic. It achieves strong performance with an average score of 60.8% across 9 benchmarks. It excels particularly in HumanEval (88.1%), MGSM (85.6%), DROP (83.1%). It supports a 400K token context window for handling large documents. The model is available through 3 API providers. Released in 2024, it represents Anthropic's latest advancement in AI technology.
OpenAI
o3-mini is a language model developed by OpenAI. The model shows competitive results across 26 benchmarks. It excels particularly in COLLIE (98.7%), MATH (97.9%), IFEval (93.9%). It supports a 300K token context window for handling large documents. The model is available through 2 API providers. Released in 2025, it represents OpenAI's latest advancement in AI technology.
3 months newer
Claude 3.5 Haiku
Anthropic
2024-10-22
o3-mini
OpenAI
2025-01-30
Cost per million tokens (USD)
Claude 3.5 Haiku
o3-mini
Context window and performance specifications
Average performance across 29 common benchmarks
Claude 3.5 Haiku
o3-mini
o3-mini
2023-09-30
Available providers and their performance metrics
Claude 3.5 Haiku
Anthropic
Bedrock
Claude 3.5 Haiku
o3-mini
Claude 3.5 Haiku
o3-mini
o3-mini
Azure
OpenAI