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%). It supports a 328K token context window for handling large documents. The model is available through 3 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 OSS 20B
OpenAI
GPT OSS 20B is a multimodal language model developed by OpenAI. It supports a 262K 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. It's licensed for commercial use, making it suitable for enterprise applications. Released in 2025, it represents OpenAI's latest advancement in AI technology.

Claude Opus 4
Anthropic
2025-05-22

GPT OSS 20B
OpenAI
2025-08-05
2 months newer
Pricing Comparison
Cost per million tokens (USD)

Claude Opus 4

GPT OSS 20B
Performance Metrics
Context window and performance specifications

Claude Opus 4

GPT OSS 20B
Provider Availability & Performance
Available providers and their performance metrics

Claude Opus 4
Bedrock
Anthropic

GPT OSS 20B
ZeroEval
OpenAI

Claude Opus 4

GPT OSS 20B