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.

Grok-4
xAI
Grok-4 is a multimodal language model developed by xAI. It achieves strong performance with an average score of 63.1% across 7 benchmarks. It excels particularly in AIME 2025 (91.7%), HMMT25 (90.0%), GPQA (87.5%). 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 xAI's latest advancement in AI technology.

Grok-4
xAI
2025-07-09

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

Claude Sonnet 4.5

Grok-4
Performance Metrics
Context window and performance specifications

Claude Sonnet 4.5

Grok-4
Average performance across 15 common benchmarks

Claude Sonnet 4.5

Grok-4
Performance comparison across key benchmark categories

Claude Sonnet 4.5

Grok-4
Grok-4
2024-12-31
Claude Sonnet 4.5
2025-01-31
Provider Availability & Performance
Available providers and their performance metrics

Claude Sonnet 4.5
Anthropic
ZeroEval

Grok-4
xAI
ZeroEval

Claude Sonnet 4.5

Grok-4