Kimi K2.5 vs Gemini 2.5 Pro Comparison
Comparing Kimi K2.5 and Gemini 2.5 Pro across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
Kimi K2.5 outperforms in 5 benchmarks (AIME 2025, GPQA, Humanity's Last Exam, SWE-Bench Verified, Video-MME), while Gemini 2.5 Pro is better at 0 benchmarks.
Kimi K2.5 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Kimi K2.5 ($0.60/1M tokens) is 2.1x cheaper than Gemini 2.5 Pro ($1.25/1M tokens).
For output processing, Kimi K2.5 ($2.50/1M tokens) is 4.0x cheaper than Gemini 2.5 Pro ($10.00/1M tokens).
In conclusion, Gemini 2.5 Pro is more expensive than Kimi K2.5.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 2.5 Pro accepts 1,048,576 input tokens compared to Kimi K2.5's 262,100 tokens. Kimi K2.5 can generate longer responses up to 262,100 tokens, while Gemini 2.5 Pro is limited to 65,536 tokens.
Input Capabilities
Supported data types and modalities
Both Kimi K2.5 and Gemini 2.5 Pro support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Kimi K2.5
Gemini 2.5 Pro
License
Usage and distribution terms
Kimi K2.5 is licensed under MIT, while Gemini 2.5 Pro uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
MIT
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Kimi K2.5 was released on 2026-01-27, while Gemini 2.5 Pro was released on 2025-05-20.
Kimi K2.5 is 8 months newer than Gemini 2.5 Pro.
Jan 27, 2026
1 months ago
8mo newerMay 20, 2025
10 months ago
Knowledge Cutoff
When training data ends
Gemini 2.5 Pro has a documented knowledge cutoff of 2025-01-31, while Kimi K2.5's cutoff date is not specified.
We can confirm Gemini 2.5 Pro's training data extends to 2025-01-31, but cannot make a direct comparison without Kimi K2.5's cutoff date.
—
Jan 2025
Provider Availability
Kimi K2.5 is available from Fireworks. Gemini 2.5 Pro is available from Google. The availability of providers can affect quality of the model and reliability.
Kimi K2.5
Gemini 2.5 Pro
Outputs Comparison
Key Takeaways
Kimi K2.5
View detailsMoonshot AI
Detailed Comparison
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