Grok 4 Fast vs Gemini 2.5 Flash Lite Preview

Detailed comparison of capabilities, features, and performance.

Feature
Grok 4 Fast
Gemini 2.5 Flash Lite Preview
Model Image
Grok 4 Fast
Gemini 2.5 Flash Lite Preview
AI Lab
xAI
Google
Context Size
2,000,000 tokens
1,048,576 tokens
Max Output Size
30,000 tokens
8,192 tokens
Frontier Model
Yes
No
Vision Support
No
Yes
Description
Faster Grok 4 with identical quality (2m context). Low latency for time-sensitive tasks and huge context window.
Google's small fast model preview tied to latest version. Features reduced latency and memory requirements while maintaining strong performance on common tasks.

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