Model Comparison

Gemini 3 Flash vs DeepSeek-R1-0528

Gemini 3 Flash significantly outperforms across most benchmarks. DeepSeek-R1-0528 is 1.2x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

Gemini 3 Flash outperforms in 4 benchmarks (AIME 2025, GPQA, Humanity's Last Exam, SWE-Bench Verified), while DeepSeek-R1-0528 is better at 1 benchmark (SimpleQA).

Gemini 3 Flash significantly outperforms across most benchmarks.

Tue Apr 28 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-R1-0528 costs less

For input processing, Gemini 3 Flash ($0.50/1M tokens) costs the same as DeepSeek-R1-0528 ($0.50/1M tokens).

For output processing, Gemini 3 Flash ($3.00/1M tokens) is 1.4x more expensive than DeepSeek-R1-0528 ($2.15/1M tokens).

In conclusion, Gemini 3 Flash is more expensive than DeepSeek-R1-0528.*

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

Lowest available price from all providers
Tue Apr 28 2026 • llm-stats.com
Google
Gemini 3 Flash
Input tokens$0.50
Output tokens$3.00
Best providerGoogle
DeepSeek
DeepSeek-R1-0528
Input tokens$0.50
Output tokens$2.15
Best providerDeepinfra
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Context Window

Maximum input and output token capacity

Gemini 3 Flash accepts 1,000,000 input tokens compared to DeepSeek-R1-0528's 131,072 tokens. DeepSeek-R1-0528 can generate longer responses up to 131,072 tokens, while Gemini 3 Flash is limited to 65,536 tokens.

Google
Gemini 3 Flash
Input1,000,000 tokens
Output65,536 tokens
DeepSeek
DeepSeek-R1-0528
Input131,072 tokens
Output131,072 tokens
Tue Apr 28 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 3 Flash supports multimodal inputs, whereas DeepSeek-R1-0528 does not.

Gemini 3 Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 3 Flash

Text
Images
Audio
Video

DeepSeek-R1-0528

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 3 Flash is licensed under a proprietary license, while DeepSeek-R1-0528 uses MIT.

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

Gemini 3 Flash

Proprietary

Closed source

DeepSeek-R1-0528

MIT

Open weights

Release Timeline

When each model was launched

Gemini 3 Flash was released on 2025-12-17, while DeepSeek-R1-0528 was released on 2025-05-28.

Gemini 3 Flash is 7 months newer than DeepSeek-R1-0528.

Gemini 3 Flash

Dec 17, 2025

4 months ago

6mo newer
DeepSeek-R1-0528

May 28, 2025

11 months ago

Knowledge Cutoff

When training data ends

Gemini 3 Flash has a documented knowledge cutoff of 2025-01-31, while DeepSeek-R1-0528's cutoff date is not specified.

We can confirm Gemini 3 Flash's training data extends to 2025-01-31, but cannot make a direct comparison without DeepSeek-R1-0528's cutoff date.

Gemini 3 Flash

Jan 2025

DeepSeek-R1-0528

—

Provider Availability

Gemini 3 Flash is available from Google. DeepSeek-R1-0528 is available from DeepInfra, DeepSeek, Novita.

Gemini 3 Flash

google logo
Google
Input Price:Input: $0.50/1MOutput Price:Output: $3.00/1M

DeepSeek-R1-0528

deepinfra logo
Deepinfra
Input Price:Input: $0.50/1MOutput Price:Output: $2.15/1M
deepseek logo
DeepSeek
Input Price:Input: $0.55/1MOutput Price:Output: $2.19/1M
novita logo
Novita
Input Price:Input: $0.70/1MOutput Price:Output: $2.50/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Google
Larger context window (1,000,000 tokens)
Supports multimodal inputs
Higher AIME 2025 score (99.7% vs 87.5%)
Higher GPQA score (90.4% vs 81.0%)
Higher Humanity's Last Exam score (43.5% vs 17.7%)
Higher SWE-Bench Verified score (78.0% vs 44.6%)
DeepSeek
Less expensive output tokens
Has open weights
Higher SimpleQA score (92.3% vs 68.7%)

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 3 Flash
DeepSeek
DeepSeek-R1-0528

FAQ

Common questions about Gemini 3 Flash vs DeepSeek-R1-0528

Gemini 3 Flash significantly outperforms across most benchmarks. Gemini 3 Flash is made by Google and DeepSeek-R1-0528 is made by DeepSeek. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Gemini 3 Flash scores Vending-Bench 2: 100.0%, AIME 2025: 99.7%, Global PIQA: 92.8%, MMMLU: 91.8%, GPQA: 90.4%. DeepSeek-R1-0528 scores MMLU-Redux: 93.4%, SimpleQA: 92.3%, AIME 2024: 91.4%, AIME 2025: 87.5%, MMLU-Pro: 85.0%.
Both models cost $0.50 per million input tokens.
Gemini 3 Flash supports 1.0M tokens and DeepSeek-R1-0528 supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (1.0M vs 131K), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.
Gemini 3 Flash is developed by Google and DeepSeek-R1-0528 is developed by DeepSeek.