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Gemini 3.8 Flash Cyber vs Llama 3.1 405B Instruct

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.4 to 14.8.

Google · Meta · Updated for 2026

Which is better?

Gemini 3.8 Flash Cyber leads the overall LLM Stats Score 42.4 to 14.8, 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 — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Llama 3.1 405B 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
Llama 3.1 405B Instruct
Meta
Core performance indexes
LLM Stats Score
42.4
#46
14.8
#222
Coding
35.6
#25
11.6
#149
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.89 / M
Output price
— / M
$0.89 / M
Context window
—
128,000

Individual benchmarks

4 reported for Gemini 3.8 Flash Cyber · 18 for Llama 3.1 405B Instruct

No common benchmarks found

Gemini 3.8 Flash Cyber and Llama 3.1 405B 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 Llama 3.1 405B Instruct specifies input context (128,000 tokens). Only Llama 3.1 405B Instruct specifies output context (128,000 tokens).

Google
Gemini 3.8 Flash Cyber
Input- tokens
Output- tokens
Meta
Llama 3.1 405B Instruct
Input128,000 tokens
Output128,000 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 Llama 3.1 405B Instruct uses Llama 3.1 Community License.

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

Gemini 3.8 Flash Cyber

Proprietary

Closed source

Llama 3.1 405B Instruct

Llama 3.1 Community License

Open weights

Release Timeline

When each model was launched

Gemini 3.8 Flash Cyber was released on 2026-09-02, while Llama 3.1 405B Instruct was released on 2024-07-23.

Gemini 3.8 Flash Cyber is 26 months newer than Llama 3.1 405B Instruct.

Gemini 3.8 Flash Cyber

Sep 2, 2026

1 days ago

2.1yr newer
Llama 3.1 405B Instruct

Jul 23, 2024

2.1 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 Llama 3.1 405B Instruct side-by-side, then vote on the output you prefer.

Gemini 3.8 Flash Cyber
✓ Preferred
Llama 3.1 405B Instruct
Open in Playground

FAQ

Common questions about Gemini 3.8 Flash Cyber vs Llama 3.1 405B Instruct.

Which is better, Gemini 3.8 Flash Cyber or Llama 3.1 405B Instruct?

Gemini 3.8 Flash Cyber leads the LLM Stats Score 42.4 to 14.8. Gemini 3.8 Flash Cyber is made by Google and Llama 3.1 405B Instruct is made by Meta. 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 Llama 3.1 405B 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%. Llama 3.1 405B Instruct scores ARC-C: 96.9%, GSM8k: 96.8%, API-Bank: 92.0%, Multilingual MGSM (CoT): 91.6%, HumanEval: 89.0%.

What are the context window sizes for Gemini 3.8 Flash Cyber and Llama 3.1 405B Instruct?

Gemini 3.8 Flash Cyber supports an unknown number of tokens and Llama 3.1 405B Instruct supports 128K 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 Llama 3.1 405B Instruct?

Key differences include LLM Stats Score (42.4 vs 14.8), licensing (Proprietary vs Llama 3.1 Community License). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.8 Flash Cyber and Llama 3.1 405B Instruct?

Gemini 3.8 Flash Cyber is developed by Google and Llama 3.1 405B Instruct is developed by Meta.

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