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

Claude Opus 4
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%). The model shows particular specialization in general tasks with an average performance of 80.3%. 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.

GPT-5 Codex
OpenAI
GPT-5 Codex is a language model developed by OpenAI. It achieves strong performance with an average score of 74.5% across 1 benchmarks. Notable strengths include SWE-Bench Verified (74.5%). Released in 2025, it represents OpenAI's latest advancement in AI technology.

Claude Opus 4
Anthropic
2025-05-22

GPT-5 Codex
OpenAI
2025-09-15
3 months newer
Performance Metrics
Context window and performance specifications

Claude Opus 4

GPT-5 Codex
Average performance across 1 common benchmarks

Claude Opus 4

GPT-5 Codex
Performance comparison across key benchmark categories

Claude Opus 4

GPT-5 Codex
GPT-5 Codex
2024-09-30
Provider Availability & Performance
Available providers and their performance metrics

Claude Opus 4
Bedrock
Anthropic
ZeroEval

GPT-5 Codex

Claude Opus 4

GPT-5 Codex