Model Comparison
Comprehensive side-by-side analysis of model capabilities and performance

Claude Sonnet 4.5
Anthropic
Claude Sonnet 4.5 is a multimodal language model developed by Anthropic. It achieves strong performance with an average score of 78.0% across 10 benchmarks. It excels particularly in Tau2 Telecom (98.0%), MMMLU (89.1%), AIME 2025 (87.0%). It supports a 264K token context window for handling large documents. The model is available through 2 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.

o1
OpenAI
o1 is a language model developed by OpenAI. It achieves strong performance with an average score of 71.6% across 19 benchmarks. It excels particularly in GSM8k (97.1%), MATH (96.4%), GPQA Physics (92.8%). It supports a 300K token context window for handling large documents. The model is available through 2 API providers. Released in 2024, it represents OpenAI's latest advancement in AI technology.

o1
OpenAI
2024-12-17

Claude Sonnet 4.5
Anthropic
2025-09-29
9 months newer
Pricing Comparison
Cost per million tokens (USD)

Claude Sonnet 4.5

o1
Performance Metrics
Context window and performance specifications

Claude Sonnet 4.5

o1
Average performance across 26 common benchmarks

Claude Sonnet 4.5

o1
Performance comparison across key benchmark categories

Claude Sonnet 4.5

o1
Claude Sonnet 4.5
2025-01-31
Provider Availability & Performance
Available providers and their performance metrics

Claude Sonnet 4.5
Anthropic
ZeroEval

o1
Azure
OpenAI

Claude Sonnet 4.5

o1