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.

GPT-4.1
OpenAI
GPT-4.1 is a multimodal language model developed by OpenAI. The model shows competitive results across 30 benchmarks. It excels particularly in MMLU (90.2%), CharXiv-D (87.9%), IFEval (87.4%). With a 1.1M token context window, it can handle extensive documents and complex multi-turn conversations. 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.

GPT-4.1
OpenAI
2025-04-14

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

Claude Sonnet 4.5

GPT-4.1
Performance Metrics
Context window and performance specifications

Claude Sonnet 4.5

GPT-4.1
Average performance across 36 common benchmarks

Claude Sonnet 4.5

GPT-4.1
Performance comparison across key benchmark categories

Claude Sonnet 4.5

GPT-4.1
GPT-4.1
2024-06-01
Claude Sonnet 4.5
2025-01-31
Provider Availability & Performance
Available providers and their performance metrics

Claude Sonnet 4.5
Anthropic
ZeroEval

GPT-4.1
OpenAI

Claude Sonnet 4.5

GPT-4.1