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Gemini 3.8 Flash Cyber vs GLM-5.1

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.4 to 39.4.

Google · Zhipu AI · Updated for 2026

Which is better?

Gemini 3.8 Flash Cyber leads the overall LLM Stats Score 42.4 to 39.4, ranking #46 overall.

In the 1 individual benchmarks reported for both models, Gemini 3.8 Flash Cyber wins 1; this is a narrower head-to-head signal than the composite indexes.

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 value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Sep 2026

Choose GLM-5.1

  • 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
GLM-5.1
Zhipu AI
Core performance indexes
LLM Stats Score
42.4
#46
39.4
#55
Coding
35.6
#25
30.8
#46
Agents
31.2
#27
23.9
#50
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
— / M
$1.40 / M
Output price
— / M
$4.40 / M
Context window
—
200,000

Individual benchmarks

4 reported for Gemini 3.8 Flash Cyber · 18 for GLM-5.1

1 shared

Gemini 3.8 Flash Cyber outperforms in 1 benchmarks (CyberGym), while GLM-5.1 is better at 0 benchmarks.

Gemini 3.8 Flash Cyber significantly outperforms across most benchmarks.

Sat Sep 05 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

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 3.8 Flash Cyber
Input- tokens
Output- tokens
Zhipu AI
GLM-5.1
Input200,000 tokens
Output128,000 tokens
Sat Sep 05 2026 • llm-stats.com

License

Usage and distribution terms

Gemini 3.8 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 3.8 Flash Cyber

Proprietary

Closed source

GLM-5.1

MIT

Open weights

Release Timeline

When each model was launched

Gemini 3.8 Flash Cyber was released on 2026-09-02, while GLM-5.1 was released on 2026-04-07.

Gemini 3.8 Flash Cyber is 5 months newer than GLM-5.1.

Gemini 3.8 Flash Cyber

Sep 2, 2026

3 days ago

4mo newer
GLM-5.1

Apr 7, 2026

5 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→

Judge for yourself.

Run your own prompts against Gemini 3.8 Flash Cyber and GLM-5.1 side-by-side, then vote on the output you prefer.

Gemini 3.8 Flash Cyber
✓ Preferred
GLM-5.1
Open in Playground

FAQ

Common questions about Gemini 3.8 Flash Cyber vs GLM-5.1.

Which is better, Gemini 3.8 Flash Cyber or GLM-5.1?

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.4 to 39.4. Gemini 3.8 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 capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 3.8 Flash Cyber compare to GLM-5.1 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%. 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 3.8 Flash Cyber and GLM-5.1?

Gemini 3.8 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 3.8 Flash Cyber and GLM-5.1?

Key differences include LLM Stats Score (42.4 vs 39.4), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.8 Flash Cyber and GLM-5.1?

Gemini 3.8 Flash Cyber is developed by Google and GLM-5.1 is developed by Zhipu AI.

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