Comprehensive side-by-side LLM comparison
GPT-5 leads with 45.6% higher average benchmark score. GPT-5 offers 200.0K more tokens in context window than Claude Opus 4. GPT-5 is $78.75 cheaper per million tokens. Claude Opus 4 is available on 4 providers. Overall, GPT-5 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
GPT-5 is a multimodal language model developed by OpenAI. It achieves strong performance with an average score of 70.1% across 35 benchmarks. It excels particularly in SWE-Lancer (IC-Diamond subset) (100.0%), COLLIE (99.0%), Tau2 Telecom (96.7%). It supports a 528K 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 OpenAI's latest advancement in AI technology.
2 months newer
Claude Opus 4
Anthropic
2025-05-22
GPT-5
OpenAI
2025-08-07
Cost per million tokens (USD)
Claude Opus 4
GPT-5
Context window and performance specifications
Average performance across 41 common benchmarks
Claude Opus 4
GPT-5
GPT-5
2024-09-30
Available providers and their performance metrics
Claude Opus 4
Anthropic
Bedrock
ZeroEval
Claude Opus 4
GPT-5
Claude Opus 4
GPT-5
GPT-5
OpenAI
ZeroEval