Grok 4 vs Kimi K2.5
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Grok 4 by xAI wins on 2 of 3 benchmarks against Kimi K2.5 by Moonshot AI, which leads on 0. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from the AI Value Index.
Category-by-Category Breakdown
Context: In context, both score 256K on Context Length.
Speed Comparison
Grok 4 generates output at 55 tok/s compared to Kimi K2.5's 45 tok/s, and the time to first token is 500 ms for Grok 4 versus 1210 ms for Kimi K2.5. Grok 4 delivers faster throughput.
Verdict
Grok 4 leads across the board in speed, making it the stronger overall choice in this comparison.
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Grok 4 vs Kimi K2.5 — FAQ
Which is better, Grok 4 or Kimi K2.5?
Grok 4 wins on more benchmarks overall (2 vs 0). However, the best choice depends on your specific needs — each model excels in different areas.
How does Grok 4 compare to Kimi K2.5 for coding?
SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.
Is Grok 4 cheaper than Kimi K2.5?
Complete pricing data is not available for both models. Check the pricing section of the comparison above for available cost information.
Which is faster, Grok 4 or Kimi K2.5?
Grok 4 is faster, generating output at 55 tok/s compared to 45 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Grok 4 vs Kimi K2.5 comparison cover?
This comparison covers 3 benchmarks including Output Speed, Time to First Token, Context Length. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.