Grok 4 Fast (reasoning) vs Claude 3.7 Sonnet (high output)
Detailed comparison of capabilities, features, and performance.
Feature
Grok 4 Fast (reasoning)
Claude 3.7 Sonnet (high output)
Model Image
AI Lab
xAI
Anthropic
Context Size
2,000,000 tokens
204,800 tokens
Max Output Size
30,000 tokens
128,000 tokens
Frontier Model
Yes
Yes
Vision Support
No
Yes
Description
Reasoning-enabled Grok 4 with 2m context. Low latency for time-sensitive tasks and huge context window.
The latest Sonnet 3.7 model from Anthropic
Learn more about Grok 4 Fast (reasoning)
View detailed specifications and capabilities
View model details →Learn more about Claude 3.7 Sonnet (high output)
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