DeepSeek-V3 0324 vs GPT-5.1 Comparison
Comparing DeepSeek-V3 0324 and GPT-5.1 across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
DeepSeek-V3 0324 outperforms in 0 benchmarks, while GPT-5.1 is better at 1 benchmark (GPQA).
GPT-5.1 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, DeepSeek-V3 0324 ($0.28/1M tokens) is 4.5x cheaper than GPT-5.1 ($1.25/1M tokens).
For output processing, DeepSeek-V3 0324 ($1.14/1M tokens) is 8.8x cheaper than GPT-5.1 ($10.00/1M tokens).
In conclusion, GPT-5.1 is more expensive than DeepSeek-V3 0324.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
GPT-5.1 accepts 400,000 input tokens compared to DeepSeek-V3 0324's 163,840 tokens. DeepSeek-V3 0324 can generate longer responses up to 163,840 tokens, while GPT-5.1 is limited to 128,000 tokens.
Input Capabilities
Supported data types and modalities
GPT-5.1 supports multimodal inputs, whereas DeepSeek-V3 0324 does not.
GPT-5.1 can handle both text and other forms of data like images, making it suitable for multimodal applications.
DeepSeek-V3 0324
GPT-5.1
License
Usage and distribution terms
DeepSeek-V3 0324 is licensed under MIT + Model License (Commercial use allowed), while GPT-5.1 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 0324 was released on 2025-03-25, while GPT-5.1 was released on 2025-11-13.
GPT-5.1 is 8 months newer than DeepSeek-V3 0324.
Mar 25, 2025
11 months ago
Nov 13, 2025
4 months ago
7mo newerKnowledge Cutoff
When training data ends
GPT-5.1 has a documented knowledge cutoff of 2024-09-30, while DeepSeek-V3 0324's cutoff date is not specified.
We can confirm GPT-5.1's training data extends to 2024-09-30, but cannot make a direct comparison without DeepSeek-V3 0324's cutoff date.
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Sep 2024
Provider Availability
DeepSeek-V3 0324 is available from Novita. GPT-5.1 is available from OpenAI. The availability of providers can affect quality of the model and reliability.
DeepSeek-V3 0324
GPT-5.1
Outputs Comparison
Key Takeaways
DeepSeek-V3 0324
View detailsDeepSeek
GPT-5.1
View detailsOpenAI
Detailed Comparison
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