Benchmark Scores
88.1/100MMLU89.5
HumanEval89
Math84.5
Reasoning89
Coding88.5
About Grok 3.5
Grok 3.5 is xAI's mid-generation update with improved reasoning and knowledge. It bridges the gap between Grok 3 and Grok 4 with solid performance across most tasks.
Strengths
- +Real-time data access
- +Strong general reasoning
- +Good cost-to-performance
- +Witty conversational style
Weaknesses
- -Smaller context than competitors
- -Less rigorous safety alignment
- -Limited multimodal capabilities
Pricing
Per 1M tokens
Input$3.00
Output$9.00
Quick Facts
- Context Window
- 128K
- Parameters
- Undisclosed
- Release Date
- 2025-09-20
- Category
- Frontier
Compare Models
See how Grok 3.5 stacks up against other models