Gemini 2.5 Pro vs Kimi K2.5
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Kimi K2.5 by Moonshot AI wins on 8 of 11 benchmarks against Gemini 2.5 Pro by Google, which leads on 3. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
Coding: In coding, Kimi K2.5 scores 46.8 on AA Coding Index compared to Gemini 2.5 Pro's 33.3, while Kimi K2.5 scores 1228 on Design Arena ELO compared to Gemini 2.5 Pro's 1164, while Kimi K2.5 scores 1261 on Website Arena ELO compared to Gemini 2.5 Pro's 1179.
Reasoning: In reasoning, Kimi K2.5 scores 84.9% on GPQA Diamond compared to Gemini 2.5 Pro's 79.9%, while Kimi K2.5 scores 71.2% on τ²-Bench Airline compared to Gemini 2.5 Pro's 61.3%.
Context: In context, Gemini 2.5 Pro scores 1.0M on Context Length compared to Kimi K2.5's 262K.
Pricing Comparison
Gemini 2.5 Pro costs $1.3/1M input tokens and $10.0/1M output tokens, while Kimi K2.5 costs $0.45/1M input and $2.3/1M output. Kimi K2.5 is the more affordable option for API usage.
Speed Comparison
Gemini 2.5 Pro 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 Gemini 2.5 Pro versus 1210 ms for Kimi K2.5. Gemini 2.5 Pro delivers faster throughput.
Verdict
For developers prioritizing speed, Gemini 2.5 Pro has the edge. For those who value affordability, Kimi K2.5 is the stronger choice.
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Gemini 2.5 Pro vs Kimi K2.5 — FAQ
Which is better, Gemini 2.5 Pro or Kimi K2.5?
Kimi K2.5 wins on more benchmarks overall (8 vs 3). However, the best choice depends on your specific needs — each model excels in different areas.
How does Gemini 2.5 Pro 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 Gemini 2.5 Pro cheaper than Kimi K2.5?
Yes, Kimi K2.5 is cheaper. Gemini 2.5 Pro costs $1.3/1M input and $10.0/1M output tokens. Kimi K2.5 costs $0.45/1M input and $2.3/1M output tokens.
Which is faster, Gemini 2.5 Pro or Kimi K2.5?
Gemini 2.5 Pro 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 Gemini 2.5 Pro vs Kimi K2.5 comparison cover?
This comparison covers 11 benchmarks including GPQA Diamond, Output Speed, Time to First Token, Input Cost, Output Cost, Context Length, AA Coding Index, Cached Input Cost, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.