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Gemini 3.8 Flash Cyber vs GPT OSS 20B

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.4 to 17.2.

Google · OpenAI · Updated for 2026

Which is better?

Gemini 3.8 Flash Cyber leads the overall LLM Stats Score 42.4 to 17.2, 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
  • you want the most recent training data — it shipped Sep 2026

Choose GPT OSS 20B

  • 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
GPT OSS 20B
OpenAI
Core performance indexes
LLM Stats Score
42.4
#46
17.2
#206
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.05 / M
Output price
— / M
$0.20 / M
Context window
—
131,072

Individual benchmarks

4 reported for Gemini 3.8 Flash Cyber · 7 for GPT OSS 20B

No common benchmarks found

Gemini 3.8 Flash Cyber and GPT OSS 20Bdon'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 GPT OSS 20B specifies input context (131,072 tokens). Only GPT OSS 20B specifies output context (32,768 tokens).

Google
Gemini 3.8 Flash Cyber
Input- tokens
Output- tokens
OpenAI
GPT OSS 20B
Input131,072 tokens
Output32,768 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 GPT OSS 20B uses Apache 2.0.

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

Gemini 3.8 Flash Cyber

Proprietary

Closed source

GPT OSS 20B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Gemini 3.8 Flash Cyber was released on 2026-09-02, while GPT OSS 20B was released on 2025-08-05.

Gemini 3.8 Flash Cyber is 13 months newer than GPT OSS 20B.

Gemini 3.8 Flash Cyber

Sep 2, 2026

3 days ago

1.1yr newer
GPT OSS 20B

Aug 5, 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 GPT OSS 20B side-by-side, then vote on the output you prefer.

Gemini 3.8 Flash Cyber
✓ Preferred
GPT OSS 20B
Open in Playground

FAQ

Common questions about Gemini 3.8 Flash Cyber vs GPT OSS 20B.

Which is better, Gemini 3.8 Flash Cyber or GPT OSS 20B?

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.4 to 17.2. Gemini 3.8 Flash Cyber is made by Google and GPT OSS 20B is made by OpenAI. 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 GPT OSS 20B 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%. GPT OSS 20B scores MMLU: 85.3%, CodeForces: 74.3%, GPQA: 71.5%, TAU-bench Retail: 54.8%, HealthBench: 42.5%.

What are the context window sizes for Gemini 3.8 Flash Cyber and GPT OSS 20B?

Gemini 3.8 Flash Cyber supports an unknown number of tokens and GPT OSS 20B supports 131K 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 GPT OSS 20B?

Key differences include LLM Stats Score (42.4 vs 17.2), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.8 Flash Cyber and GPT OSS 20B?

Gemini 3.8 Flash Cyber is developed by Google and GPT OSS 20B is developed by OpenAI.

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