Model Comparison

DeepSeek-R1 vs Gemini 3.5 Flash CyberWhich is better in 2026?

Comparing DeepSeek-R1 and Gemini 3.5 Flash Cyber across benchmarks, pricing, and capabilities.

Verdict: DeepSeek-R1 vs Gemini 3.5 Flash Cyber — which is better?

DeepSeek-R1 (by DeepSeek) and Gemini 3.5 Flash Cyber (by Google) 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 DeepSeek-R1 if…

  • you need open weights you can self-host or fine-tune

Choose Gemini 3.5 Flash Cyber if…

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

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

DeepSeek-R1 and Gemini 3.5 Flash Cyberdon'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 DeepSeek-R1 specifies input context (131,072 tokens). Only DeepSeek-R1 specifies output context (131,072 tokens).

DeepSeek
DeepSeek-R1
Input131,072 tokens
Output131,072 tokens
Google
Gemini 3.5 Flash Cyber
Input- tokens
Output- tokens
Tue Jul 21 2026 • llm-stats.com

License

Usage and distribution terms

DeepSeek-R1 is licensed under MIT, while Gemini 3.5 Flash Cyber uses a proprietary license.

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

DeepSeek-R1

MIT

Open weights

Gemini 3.5 Flash Cyber

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek-R1 was released on 2025-01-20, while Gemini 3.5 Flash Cyber was released on 2026-07-21.

Gemini 3.5 Flash Cyber is 18 months newer than DeepSeek-R1.

DeepSeek-R1

Jan 20, 2025

1.5 years ago

Gemini 3.5 Flash Cyber

Jul 21, 2026

0 days ago

1.5yr newer

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

DeepSeek
Larger context window (131,072 tokens)
Has open weights
Google

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

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against DeepSeek-R1 and Gemini 3.5 Flash Cyber side-by-side, then vote on the output you prefer.

DeepSeek-R1
✓ Preferred
Gemini 3.5 Flash Cyber
Open in Playground
AI Model Comparison Table
Feature
DeepSeek
DeepSeek-R1
Google
Gemini 3.5 Flash Cyber

FAQ

Common questions about DeepSeek-R1 vs Gemini 3.5 Flash Cyber.

Which is better, DeepSeek-R1 or Gemini 3.5 Flash Cyber?

DeepSeek-R1 (DeepSeek) and Gemini 3.5 Flash Cyber (Google) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does DeepSeek-R1 compare to Gemini 3.5 Flash Cyber in benchmarks?

Gemini 3.5 Flash Cyber scores CyberGym: 83.2%.

What are the context window sizes for DeepSeek-R1 and Gemini 3.5 Flash Cyber?

DeepSeek-R1 supports 131K tokens and Gemini 3.5 Flash Cyber supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between DeepSeek-R1 and Gemini 3.5 Flash Cyber?

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

Who makes DeepSeek-R1 and Gemini 3.5 Flash Cyber?

DeepSeek-R1 is developed by DeepSeek and Gemini 3.5 Flash Cyber is developed by Google.

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