Model Comparison

DeepSeek-V4-Flash-0731 vs Gemini 3.5 Flash CyberWhich is better in 2026?

Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks.

Verdict: DeepSeek-V4-Flash-0731 vs Gemini 3.5 Flash Cyber — which is better?

DeepSeek-V4-Flash-0731 (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.

DeepSeek-V4-Flash-0731 outperforms in 0 benchmarks, while Gemini 3.5 Flash Cyber is better at 1 benchmark (CyberGym). Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks.

Choose DeepSeek-V4-Flash-0731 if…

  • you want the most recent training data — it shipped Jul 2026
  • you need open weights you can self-host or fine-tune

Choose Gemini 3.5 Flash Cyber if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

DeepSeek-V4-Flash-0731 outperforms in 0 benchmarks, while Gemini 3.5 Flash Cyber is better at 1 benchmark (CyberGym).

Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks.

Mon Aug 03 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only DeepSeek-V4-Flash-0731 specifies input context (1,048,576 tokens). Only DeepSeek-V4-Flash-0731 specifies output context (65,536 tokens).

DeepSeek
DeepSeek-V4-Flash-0731
Input1,048,576 tokens
Output65,536 tokens
Google
Gemini 3.5 Flash Cyber
Input- tokens
Output- tokens
Mon Aug 03 2026 • llm-stats.com

License

Usage and distribution terms

DeepSeek-V4-Flash-0731 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-V4-Flash-0731

MIT

Open weights

Gemini 3.5 Flash Cyber

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek-V4-Flash-0731 was released on 2026-07-31, while Gemini 3.5 Flash Cyber was released on 2026-07-21.

DeepSeek-V4-Flash-0731 is 0 month newer than Gemini 3.5 Flash Cyber.

DeepSeek-V4-Flash-0731

Jul 31, 2026

3 days ago

1w newer
Gemini 3.5 Flash Cyber

Jul 21, 2026

1 weeks 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

DeepSeek
Larger context window (1,048,576 tokens)
Has open weights
Google
Higher CyberGym score (83.2% vs 76.7%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against DeepSeek-V4-Flash-0731 and Gemini 3.5 Flash Cyber side-by-side, then vote on the output you prefer.

DeepSeek-V4-Flash-0731
✓ Preferred
Gemini 3.5 Flash Cyber
Open in Playground
AI Model Comparison Table
Feature
DeepSeek
DeepSeek-V4-Flash-0731
Google
Gemini 3.5 Flash Cyber

FAQ

Common questions about DeepSeek-V4-Flash-0731 vs Gemini 3.5 Flash Cyber.

Which is better, DeepSeek-V4-Flash-0731 or Gemini 3.5 Flash Cyber?

Gemini 3.5 Flash Cyber significantly outperforms across most benchmarks. DeepSeek-V4-Flash-0731 is made by DeepSeek and Gemini 3.5 Flash Cyber is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does DeepSeek-V4-Flash-0731 compare to Gemini 3.5 Flash Cyber in benchmarks?

DeepSeek-V4-Flash-0731 scores Terminal-Bench 2.1: 82.7%, CyberGym: 76.7%, Toolathlon: 70.3%, DSBench-FullStack: 68.7%, DSBench-Hard: 59.6%. Gemini 3.5 Flash Cyber scores CyberGym: 83.2%.

What are the context window sizes for DeepSeek-V4-Flash-0731 and Gemini 3.5 Flash Cyber?

DeepSeek-V4-Flash-0731 supports 1.0M 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-V4-Flash-0731 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-V4-Flash-0731 and Gemini 3.5 Flash Cyber?

DeepSeek-V4-Flash-0731 is developed by DeepSeek and Gemini 3.5 Flash Cyber is developed by Google.

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