Gemini 1.5 Flash vs DeepSeek-V3

Comparing Gemini 1.5 Flash by Google and DeepSeek-V3 by DeepSeek across benchmarks, pricing, and capabilities.

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

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

DeepSeek-V3 significantly outperforms across most benchmarks.

Tue Mar 24 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, Gemini 1.5 Flash ($0.15/1M tokens) is 1.8x cheaper than DeepSeek-V3 ($0.27/1M tokens).

For output processing, Gemini 1.5 Flash ($0.60/1M tokens) is 1.8x cheaper than DeepSeek-V3 ($1.10/1M 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 Mar 24 2026 • llm-stats.com

Gemini 1.5 Flash

Input tokens$0.15

Output tokens$0.60

Best providerGoogle

DeepSeek-V3

Input tokens$0.27

Output tokens$1.10

Best providerDeepSeek

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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.

Gemini 1.5 Flash

Input1,048,576 tokens

Output8,192 tokens

DeepSeek-V3

Input131,072 tokens

Output131,072 tokens

Tue Mar 24 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.

Gemini 1.5 Flash

Text

Images

Audio

Video

DeepSeek-V3

Text

Images

Audio

Video

License

Usage and distribution terms

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

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

Gemini 1.5 Flash

Proprietary

Closed source

DeepSeek-V3

MIT + Model License (Commercial use allowed)

Open weights

Release Timeline

When each model was launched

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

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

Gemini 1.5 Flash

May 1, 2024

1.9 years ago

DeepSeek-V3

Dec 25, 2024

1.2 years ago

7mo newer

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.

Gemini 1.5 Flash

Nov 2023

DeepSeek-V3

—

Provider Availability

Gemini 1.5 Flash is available from Google. DeepSeek-V3 is available from DeepSeek. The availability of providers can affect quality of the model and reliability.