DeepSeek-V2.5 vs o3-mini
Comparing DeepSeek-V2.5 by DeepSeek and o3-mini by OpenAI across benchmarks, pricing, and capabilities.
o3-mini significantly outperforms across most benchmarks. DeepSeek-V2.5 is 11.0x cheaper per token.
Performance Benchmarks
Comparative analysis across standard metrics
DeepSeek-V2.5 outperforms in 0 benchmarks, while o3-mini is better at 3 benchmarks (MATH, MMLU, SWE-Bench Verified).
o3-mini significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, DeepSeek-V2.5 ($0.14/1M tokens) is 7.9x cheaper than o3-mini ($1.10/1M tokens).
For output processing, DeepSeek-V2.5 ($0.28/1M tokens) is 15.7x cheaper than o3-mini ($4.40/1M tokens).
In conclusion, o3-mini is more expensive than DeepSeek-V2.5.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
o3-mini accepts 200,000 input tokens compared to DeepSeek-V2.5's 8,192 tokens. o3-mini can generate longer responses up to 100,000 tokens, while DeepSeek-V2.5 is limited to 8,192 tokens.
License
Usage and distribution terms
DeepSeek-V2.5 is licensed under deepseek, while o3-mini uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
deepseek
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
DeepSeek-V2.5 was released on 2024-05-08, while o3-mini was released on 2025-01-30.
o3-mini is 9 months newer than DeepSeek-V2.5.
May 8, 2024
1.9 years ago
Jan 30, 2025
1.1 years ago
8mo newerKnowledge Cutoff
When training data ends
o3-mini has a documented knowledge cutoff of 2023-09-30, while DeepSeek-V2.5's cutoff date is not specified.
We can confirm o3-mini's training data extends to 2023-09-30, but cannot make a direct comparison without DeepSeek-V2.5's cutoff date.
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Sep 2023
Provider Availability
DeepSeek-V2.5 is available from DeepSeek, DeepInfra, Hyperbolic. o3-mini is available from Azure, OpenAI. The availability of providers can affect quality of the model and reliability.
DeepSeek-V2.5
o3-mini
Outputs Comparison
Key Takeaways
DeepSeek-V2.5
View detailsDeepSeek
o3-mini
View detailsOpenAI
Detailed Comparison
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