Claude Opus vs Grok 3 Fast

Detailed comparison of capabilities, features, and performance.

Feature
Claude Opus
Grok 3 Fast
Model Image
Claude Opus
Grok 3 Fast
AI Lab
Anthropic
xAI
Context Size
204,800 tokens
131,000 tokens
Max Output Size
4,096 tokens
8,000 tokens
Frontier Model
Yes
Yes
Vision Support
Yes
No
Description
Anthropic's most powerful Claude 3 model
Faster Grok 3 with identical quality (131k context). Low latency for time-sensitive tasks.

Try both models in your workspace

Access both Claude Opus and Grok 3 Fast in a single workspace without managing multiple API keys.

Create your workspace