Model Comparison

Gemini 3.5 Flash Cyber vs Kimi K2.5Which is better in 2026?

Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks.

Verdict: Gemini 3.5 Flash Cyber vs Kimi K2.5 — which is better?

Gemini 3.5 Flash Cyber (by Google) and Kimi K2.5 (by Moonshot AI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Gemini 3.5 Flash Cyber outperforms in 1 benchmarks (CyberGym), while Kimi K2.5 is better at 0 benchmarks. Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks.

Choose Gemini 3.5 Flash Cyber if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you want the most recent training data — it shipped Jul 2026

Choose Kimi K2.5 if…

  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemini 3.5 Flash Cyber outperforms in 1 benchmarks (CyberGym), while Kimi K2.5 is better at 0 benchmarks.

Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks.

Sun Jul 26 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Kimi K2.5 specifies input context (262,100 tokens). Only Kimi K2.5 specifies output context (262,100 tokens).

Google
Gemini 3.5 Flash Cyber
Input- tokens
Output- tokens
Moonshot AI
Kimi K2.5
Input262,100 tokens
Output262,100 tokens
Sun Jul 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Kimi K2.5 supports multimodal inputs, whereas Gemini 3.5 Flash Cyber does not.

Kimi K2.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 3.5 Flash Cyber

Text
Images
Audio
Video

Kimi K2.5

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 3.5 Flash Cyber is licensed under a proprietary license, while Kimi K2.5 uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Gemini 3.5 Flash Cyber

Proprietary

Closed source

Kimi K2.5

MIT

Open weights

Release Timeline

When each model was launched

Gemini 3.5 Flash Cyber was released on 2026-07-21, while Kimi K2.5 was released on 2026-01-27.

Gemini 3.5 Flash Cyber is 6 months newer than Kimi K2.5.

Gemini 3.5 Flash Cyber

Jul 21, 2026

5 days ago

5mo newer
Kimi K2.5

Jan 27, 2026

6 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Higher CyberGym score (83.2% vs 41.3%)
Moonshot AI
Larger context window (262,100 tokens)
Supports multimodal inputs
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Gemini 3.5 Flash Cyber and Kimi K2.5 side-by-side, then vote on the output you prefer.

Gemini 3.5 Flash Cyber
✓ Preferred
Kimi K2.5
Open in Playground
AI Model Comparison Table
Feature
Google
Gemini 3.5 Flash Cyber
Moonshot AI
Kimi K2.5

FAQ

Common questions about Gemini 3.5 Flash Cyber vs Kimi K2.5.

Which is better, Gemini 3.5 Flash Cyber or Kimi K2.5?

Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks. Gemini 3.5 Flash Cyber is made by Google and Kimi K2.5 is made by Moonshot AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3.5 Flash Cyber compare to Kimi K2.5 in benchmarks?

Gemini 3.5 Flash Cyber scores CyberGym: 83.2%. Kimi K2.5 scores AIME 2025: 96.1%, HMMT 2025: 95.4%, InfoVQAtest: 92.6%, OCRBench: 92.3%, MathVista-Mini: 90.1%.

What are the context window sizes for Gemini 3.5 Flash Cyber and Kimi K2.5?

Gemini 3.5 Flash Cyber supports an unknown number of tokens and Kimi K2.5 supports 262K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3.5 Flash Cyber and Kimi K2.5?

Key differences include multimodal support (no vs yes), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.5 Flash Cyber and Kimi K2.5?

Gemini 3.5 Flash Cyber is developed by Google and Kimi K2.5 is developed by Moonshot AI.

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