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Gemini 3.8 Flash Cyber vs Kimi K2 Instruct

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.4 to 22.0.

Google · Moonshot AI · Updated for 2026

Which is better?

Gemini 3.8 Flash Cyber leads the overall LLM Stats Score 42.4 to 22.0, ranking #46 overall.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Gemini 3.8 Flash Cyber

  • overall performance matters — it scores 42.4 and ranks #46 on LLM Stats
  • your work emphasizes coding and agents — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Kimi K2 Instruct

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

At a glance

The differences that matter most.

Gemini 3.8 Flash Cyber
Google
Kimi K2 Instruct
Moonshot AI
Core performance indexes
LLM Stats Score
42.4
#46
22.0
#171
Coding
35.6
#25
12.6
#138
Agents
31.2
#27
-0.9
#164
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.50 / M
Output price
— / M
$0.50 / M
Context window
—
200,000

Individual benchmarks

4 reported for Gemini 3.8 Flash Cyber · 38 for Kimi K2 Instruct

No common benchmarks found

Gemini 3.8 Flash Cyber and Kimi K2 Instructdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Kimi K2 Instruct specifies input context (200,000 tokens). Only Kimi K2 Instruct specifies output context (200,000 tokens).

Google
Gemini 3.8 Flash Cyber
Input- tokens
Output- tokens
Moonshot AI
Kimi K2 Instruct
Input200,000 tokens
Output200,000 tokens
Fri Sep 04 2026 • llm-stats.com

License

Usage and distribution terms

Gemini 3.8 Flash Cyber is licensed under a proprietary license, while Kimi K2 Instruct uses MIT.

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

Gemini 3.8 Flash Cyber

Proprietary

Closed source

Kimi K2 Instruct

MIT

Open weights

Release Timeline

When each model was launched

Gemini 3.8 Flash Cyber was released on 2026-09-02, while Kimi K2 Instruct was released on 2025-07-11.

Gemini 3.8 Flash Cyber is 14 months newer than Kimi K2 Instruct.

Gemini 3.8 Flash Cyber

Sep 2, 2026

1 days ago

1.1yr newer
Kimi K2 Instruct

Jul 11, 2025

1.1 years 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→

Judge for yourself.

Run your own prompts against Gemini 3.8 Flash Cyber and Kimi K2 Instruct side-by-side, then vote on the output you prefer.

Gemini 3.8 Flash Cyber
✓ Preferred
Kimi K2 Instruct
Open in Playground

FAQ

Common questions about Gemini 3.8 Flash Cyber vs Kimi K2 Instruct.

Which is better, Gemini 3.8 Flash Cyber or Kimi K2 Instruct?

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.4 to 22.0. Gemini 3.8 Flash Cyber is made by Google and Kimi K2 Instruct is made by Moonshot AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 3.8 Flash Cyber compare to Kimi K2 Instruct in benchmarks?

Gemini 3.8 Flash Cyber scores Gray Swan IPI Benchmark: 94.0%, CyberGym: 86.2%, Google Real-world Vulnerability Discovery: 71.0%, CWE-Bench: 47.2%. Kimi K2 Instruct scores MATH-500: 97.4%, GSM8k: 97.3%, CBNSL: 95.6%, HumanEval: 93.3%, MMLU-Redux: 92.7%.

What are the context window sizes for Gemini 3.8 Flash Cyber and Kimi K2 Instruct?

Gemini 3.8 Flash Cyber supports an unknown number of tokens and Kimi K2 Instruct supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3.8 Flash Cyber and Kimi K2 Instruct?

Key differences include LLM Stats Score (42.4 vs 22.0), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.8 Flash Cyber and Kimi K2 Instruct?

Gemini 3.8 Flash Cyber is developed by Google and Kimi K2 Instruct is developed by Moonshot AI.

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