Model Comparison

DeepSeek-V3 vs Gemini 1.5 Flash

DeepSeek-V3 significantly outperforms across most benchmarks. Gemini 1.5 Flash is 1.8x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

DeepSeek-V3 outperforms in 3 benchmarks (GPQA, MMLU, MMLU-Pro), while Gemini 1.5 Flash is better at 0 benchmarks.

DeepSeek-V3 significantly outperforms across most benchmarks.

Tue May 26 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 1.5 Flash costs less

For input processing, DeepSeek-V3 ($0.27/1M tokens) is 1.8x more expensive than Gemini 1.5 Flash ($0.15/1M tokens).

For output processing, DeepSeek-V3 ($1.10/1M tokens) is 1.8x more expensive than Gemini 1.5 Flash ($0.60/1M tokens).

In conclusion, DeepSeek-V3 is more expensive than Gemini 1.5 Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue May 26 2026 • llm-stats.com
DeepSeek
DeepSeek-V3
Input tokens$0.27
Output tokens$1.10
Best providerDeepSeek
Google
Gemini 1.5 Flash
Input tokens$0.15
Output tokens$0.60
Best providerGoogle
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Context Window

Maximum input and output token capacity

Gemini 1.5 Flash accepts 1,048,576 input tokens compared to DeepSeek-V3's 131,072 tokens. DeepSeek-V3 can generate longer responses up to 131,072 tokens, while Gemini 1.5 Flash is limited to 8,192 tokens.

DeepSeek
DeepSeek-V3
Input131,072 tokens
Output131,072 tokens
Google
Gemini 1.5 Flash
Input1,048,576 tokens
Output8,192 tokens
Tue May 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 1.5 Flash supports multimodal inputs, whereas DeepSeek-V3 does not.

Gemini 1.5 Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.

DeepSeek-V3

Text
Images
Audio
Video

Gemini 1.5 Flash

Text
Images
Audio
Video

License

Usage and distribution terms

DeepSeek-V3 is licensed under MIT + Model License (Commercial use allowed), while Gemini 1.5 Flash uses a proprietary license.

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

DeepSeek-V3

MIT + Model License (Commercial use allowed)

Open weights

Gemini 1.5 Flash

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek-V3 was released on 2024-12-25, while Gemini 1.5 Flash was released on 2024-05-01.

DeepSeek-V3 is 8 months newer than Gemini 1.5 Flash.

DeepSeek-V3

Dec 25, 2024

1.4 years ago

7mo newer
Gemini 1.5 Flash

May 1, 2024

2.1 years ago

Knowledge Cutoff

When training data ends

Gemini 1.5 Flash has a documented knowledge cutoff of 2023-11-01, while DeepSeek-V3's cutoff date is not specified.

We can confirm Gemini 1.5 Flash's training data extends to 2023-11-01, but cannot make a direct comparison without DeepSeek-V3's cutoff date.

DeepSeek-V3

—

Gemini 1.5 Flash

Nov 2023

Provider Availability

DeepSeek-V3 is available from DeepSeek. Gemini 1.5 Flash is available from Google.

DeepSeek-V3

deepseek logo
DeepSeek
Input Price:Input: $0.27/1MOutput Price:Output: $1.10/1M

Gemini 1.5 Flash

google logo
Google
Input Price:Input: $0.15/1MOutput Price:Output: $0.60/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

DeepSeek
Has open weights
Higher GPQA score (59.1% vs 51.0%)
Higher MMLU score (88.5% vs 78.9%)
Higher MMLU-Pro score (75.9% vs 67.3%)
Google
Larger context window (1,048,576 tokens)
Supports multimodal inputs
Less expensive input tokens
Less expensive output tokens
DeepSeekDeepSeek-V3
GoogleGemini 1.5 Flash
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Detailed Comparison

AI Model Comparison Table
Feature
DeepSeek
DeepSeek-V3
Google
Gemini 1.5 Flash

FAQ

Common questions about DeepSeek-V3 vs Gemini 1.5 Flash.

Which is better, DeepSeek-V3 or Gemini 1.5 Flash?

DeepSeek-V3 significantly outperforms across most benchmarks. DeepSeek-V3 is made by DeepSeek and Gemini 1.5 Flash is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does DeepSeek-V3 compare to Gemini 1.5 Flash in benchmarks?

DeepSeek-V3 scores DROP: 91.6%, CLUEWSC: 90.9%, MATH-500: 90.2%, MMLU-Redux: 89.1%, MMLU: 88.5%. Gemini 1.5 Flash scores XSTest: 97.0%, HellaSwag: 86.5%, GSM8k: 86.2%, BIG-Bench Hard: 85.5%, MGSM: 82.6%.

Is DeepSeek-V3 cheaper than Gemini 1.5 Flash?

Gemini 1.5 Flash is 1.8x cheaper for input tokens. DeepSeek-V3 costs $0.27/M input and $1.10/M output via deepseek. Gemini 1.5 Flash costs $0.15/M input and $0.60/M output via google.

What are the context window sizes for DeepSeek-V3 and Gemini 1.5 Flash?

DeepSeek-V3 supports 131K tokens and Gemini 1.5 Flash supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between DeepSeek-V3 and Gemini 1.5 Flash?

Key differences include context window (131K vs 1.0M), input pricing ($0.27 vs $0.15/M), multimodal support (no vs yes), licensing (MIT + Model License (Commercial use allowed) vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes DeepSeek-V3 and Gemini 1.5 Flash?

DeepSeek-V3 is developed by DeepSeek and Gemini 1.5 Flash is developed by Google.