Model Comparison

Gemini 3.5 Flash Cyber vs GLM-5.1Which is better in 2026?

Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks.

Verdict: Gemini 3.5 Flash Cyber vs GLM-5.1 — which is better?

Gemini 3.5 Flash Cyber (by Google) and GLM-5.1 (by Zhipu 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 GLM-5.1 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 GLM-5.1 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 GLM-5.1 is better at 0 benchmarks.

Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks.

Wed Jul 22 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GLM-5.1 specifies input context (200,000 tokens). Only GLM-5.1 specifies output context (128,000 tokens).

Google
Gemini 3.5 Flash Cyber
Input- tokens
Output- tokens
Zhipu AI
GLM-5.1
Input200,000 tokens
Output128,000 tokens
Wed Jul 22 2026 • llm-stats.com

License

Usage and distribution terms

Gemini 3.5 Flash Cyber is licensed under a proprietary license, while GLM-5.1 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

GLM-5.1

MIT

Open weights

Release Timeline

When each model was launched

Gemini 3.5 Flash Cyber was released on 2026-07-21, while GLM-5.1 was released on 2026-04-07.

Gemini 3.5 Flash Cyber is 4 months newer than GLM-5.1.

Gemini 3.5 Flash Cyber

Jul 21, 2026

0 days ago

3mo newer
GLM-5.1

Apr 7, 2026

3 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 68.7%)
Zhipu AI
Larger context window (200,000 tokens)
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Gemini 3.5 Flash Cyber and GLM-5.1 side-by-side, then vote on the output you prefer.

Gemini 3.5 Flash Cyber
✓ Preferred
GLM-5.1
Open in Playground
AI Model Comparison Table
Feature
Google
Gemini 3.5 Flash Cyber
Zhipu AI
GLM-5.1

FAQ

Common questions about Gemini 3.5 Flash Cyber vs GLM-5.1.

Which is better, Gemini 3.5 Flash Cyber or GLM-5.1?

Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks. Gemini 3.5 Flash Cyber is made by Google and GLM-5.1 is made by Zhipu 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 GLM-5.1 in benchmarks?

Gemini 3.5 Flash Cyber scores CyberGym: 83.2%. GLM-5.1 scores Vending-Bench 2: 100.0%, AIME 2026: 95.3%, HMMT 2025: 94.0%, GPQA: 86.2%, IMO-AnswerBench: 83.8%.

What are the context window sizes for Gemini 3.5 Flash Cyber and GLM-5.1?

Gemini 3.5 Flash Cyber supports an unknown number of tokens and GLM-5.1 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 3.5 Flash Cyber and GLM-5.1?

Key differences include licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.5 Flash Cyber and GLM-5.1?

Gemini 3.5 Flash Cyber is developed by Google and GLM-5.1 is developed by Zhipu AI.

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