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

Claude 3 Opus
Anthropic
Claude 3 Opus is a multimodal language model developed by Anthropic. This model demonstrates exceptional performance with an average score of 81.6% across 11 benchmarks. It excels particularly in ARC-C (96.4%), HellaSwag (95.4%), GSM8k (95.0%). The model shows particular specialization in reasoning tasks with an average performance of 95.9%. It supports a 400K 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 2024, it represents Anthropic's latest advancement in AI technology.

Grok-3
xAI
Grok-3 is a multimodal language model developed by xAI. This model demonstrates exceptional performance with an average score of 85.7% across 5 benchmarks. It excels particularly in AIME 2024 (93.3%), AIME 2025 (93.3%), GPQA (84.6%). The model shows particular specialization in general tasks with an average performance of 90.4%. It supports a 136K token context window for handling large documents. 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 xAI's latest advancement in AI technology.

Claude 3 Opus
Anthropic
2024-02-29

Grok-3
xAI
2025-02-17
11 months newer
Pricing Comparison
Cost per million tokens (USD)

Claude 3 Opus

Grok-3
Performance Metrics
Context window and performance specifications

Claude 3 Opus

Grok-3
Average performance across 1 common benchmarks

Claude 3 Opus

Grok-3
Performance comparison across key benchmark categories

Claude 3 Opus

Grok-3
Grok-3
2024-11-17
Provider Availability & Performance
Available providers and their performance metrics

Claude 3 Opus
Bedrock
Anthropic

Grok-3
xAI

Claude 3 Opus

Grok-3