Model Comparison

Gemini 3.5 Flash Cyber vs o1-previewWhich is better in 2026?

Comparing Gemini 3.5 Flash Cyber and o1-preview across benchmarks, pricing, and capabilities.

Verdict: Gemini 3.5 Flash Cyber vs o1-preview — which is better?

Gemini 3.5 Flash Cyber (by Google) and o1-preview (by OpenAI) 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.

Choose Gemini 3.5 Flash Cyber if…

  • you want the most recent training data — it shipped Jul 2026

Choose o1-preview if…

  • you want predictable pricing at $15.00/M input and $60.00/M output

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Gemini 3.5 Flash Cyber and o1-previewdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only o1-preview specifies input context (128,000 tokens). Only o1-preview specifies output context (32,768 tokens).

Google
Gemini 3.5 Flash Cyber
Input- tokens
Output- tokens
OpenAI
o1-preview
Input128,000 tokens
Output32,768 tokens
Wed Jul 22 2026 • llm-stats.com

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 3.5 Flash Cyber

Proprietary

Closed source

o1-preview

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.5 Flash Cyber was released on 2026-07-21, while o1-preview was released on 2024-09-12.

Gemini 3.5 Flash Cyber is 23 months newer than o1-preview.

Gemini 3.5 Flash Cyber

Jul 21, 2026

1 days ago

1.9yr newer
o1-preview

Sep 12, 2024

1.9 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→

Key Takeaways

Google

No standout differentiators in the data we have for this pair.

OpenAI
Larger context window (128,000 tokens)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Gemini 3.5 Flash Cyber and o1-preview side-by-side, then vote on the output you prefer.

Gemini 3.5 Flash Cyber
✓ Preferred
o1-preview
Open in Playground
AI Model Comparison Table
Feature
Google
Gemini 3.5 Flash Cyber
OpenAI
o1-preview

FAQ

Common questions about Gemini 3.5 Flash Cyber vs o1-preview.

Which is better, Gemini 3.5 Flash Cyber or o1-preview?

Gemini 3.5 Flash Cyber (Google) and o1-preview (OpenAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Gemini 3.5 Flash Cyber compare to o1-preview in benchmarks?

Gemini 3.5 Flash Cyber scores CyberGym: 83.2%. o1-preview scores MGSM: 90.8%, MMLU: 90.8%, MATH: 85.5%, GPQA: 73.3%, LiveBench: 52.3%.

What are the context window sizes for Gemini 3.5 Flash Cyber and o1-preview?

Gemini 3.5 Flash Cyber supports an unknown number of tokens and o1-preview supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

Who makes Gemini 3.5 Flash Cyber and o1-preview?

Gemini 3.5 Flash Cyber is developed by Google and o1-preview is developed by OpenAI.

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