DeepSeek-V3 vs GPT-5.2 Comparison
Comparing DeepSeek-V3 and GPT-5.2 across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
DeepSeek-V3 outperforms in 0 benchmarks, while GPT-5.2 is better at 2 benchmarks (GPQA, SWE-Bench Verified).
GPT-5.2 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, DeepSeek-V3 ($0.27/1M tokens) is 6.5x cheaper than GPT-5.2 ($1.75/1M tokens).
For output processing, DeepSeek-V3 ($1.10/1M tokens) is 12.7x cheaper than GPT-5.2 ($14.00/1M tokens).
In conclusion, GPT-5.2 is more expensive than DeepSeek-V3.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GPT-5.2 accepts 400,000 input tokens compared to DeepSeek-V3's 131,072 tokens. DeepSeek-V3 can generate longer responses up to 131,072 tokens, while GPT-5.2 is limited to 128,000 tokens.
Input Capabilities
Supported data types and modalities
GPT-5.2 supports multimodal inputs, whereas DeepSeek-V3 does not.
GPT-5.2 can handle both text and other forms of data like images, making it suitable for multimodal applications.
DeepSeek-V3
GPT-5.2
License
Usage and distribution terms
DeepSeek-V3 is licensed under MIT + Model License (Commercial use allowed), while GPT-5.2 uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
MIT + Model License (Commercial use allowed)
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
DeepSeek-V3 was released on 2024-12-25, while GPT-5.2 was released on 2025-12-11.
GPT-5.2 is 12 months newer than DeepSeek-V3.
Dec 25, 2024
1.2 years ago
Dec 11, 2025
3 months ago
11mo newerKnowledge Cutoff
When training data ends
GPT-5.2 has a documented knowledge cutoff of 2025-08-25, while DeepSeek-V3's cutoff date is not specified.
We can confirm GPT-5.2's training data extends to 2025-08-25, but cannot make a direct comparison without DeepSeek-V3's cutoff date.
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Aug 2025
Provider Availability
DeepSeek-V3 is available from DeepSeek. GPT-5.2 is available from OpenAI. The availability of providers can affect quality of the model and reliability.
DeepSeek-V3
GPT-5.2
Outputs Comparison
Key Takeaways
DeepSeek-V3
View detailsDeepSeek
GPT-5.2
View detailsOpenAI
Detailed Comparison
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