Grok 4 Fast vs Claude 4 Sonnet (thinking)
Detailed comparison of capabilities, features, and performance.
Feature
Grok 4 Fast
Claude 4 Sonnet (thinking)
Model Image
AI Lab
xAI
Anthropic
Context Size
2,000,000 tokens
200,000 tokens
Max Output Size
30,000 tokens
64,000 tokens
Frontier Model
Yes
Yes
Vision Support
No
Yes
Description
Faster Grok 4 with identical quality (2m context). Low latency for time-sensitive tasks and huge context window.
The latest Sonnet 4 model from Anthropic with high thinking mode
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View detailed specifications and capabilities
View model details →Learn more about Claude 4 Sonnet (thinking)
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