Model Comparison

o3-mini vs DeepSeek-V3 0324

o3-mini significantly outperforms across most benchmarks. DeepSeek-V3 0324 is 3.9x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

o3-mini outperforms in 2 benchmarks (AIME 2024, GPQA), while DeepSeek-V3 0324 is better at 0 benchmarks.

o3-mini significantly outperforms across most benchmarks.

Sat Apr 11 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-V3 0324 costs less

For input processing, o3-mini ($1.10/1M tokens) is 3.9x more expensive than DeepSeek-V3 0324 ($0.28/1M tokens).

For output processing, o3-mini ($4.40/1M tokens) is 3.9x more expensive than DeepSeek-V3 0324 ($1.14/1M tokens).

In conclusion, o3-mini is more expensive than DeepSeek-V3 0324.*

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

Lowest available price from all providers
Sat Apr 11 2026 • llm-stats.com
OpenAI
o3-mini
Input tokens$1.10
Output tokens$4.40
Best providerAzure
DeepSeek
DeepSeek-V3 0324
Input tokens$0.28
Output tokens$1.14
Best providerNovita
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

o3-mini accepts 200,000 input tokens compared to DeepSeek-V3 0324's 163,840 tokens. DeepSeek-V3 0324 can generate longer responses up to 163,840 tokens, while o3-mini is limited to 100,000 tokens.

OpenAI
o3-mini
Input200,000 tokens
Output100,000 tokens
DeepSeek
DeepSeek-V3 0324
Input163,840 tokens
Output163,840 tokens
Sat Apr 11 2026 • llm-stats.com

License

Usage and distribution terms

o3-mini is licensed under a proprietary license, while DeepSeek-V3 0324 uses MIT + Model License (Commercial use allowed).

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

o3-mini

Proprietary

Closed source

DeepSeek-V3 0324

MIT + Model License (Commercial use allowed)

Open weights

Release Timeline

When each model was launched

o3-mini was released on 2025-01-30, while DeepSeek-V3 0324 was released on 2025-03-25.

DeepSeek-V3 0324 is 2 months newer than o3-mini.

o3-mini

Jan 30, 2025

1.2 years ago

DeepSeek-V3 0324

Mar 25, 2025

1.0 years ago

1mo newer

Knowledge Cutoff

When training data ends

o3-mini has a documented knowledge cutoff of 2023-09-30, while DeepSeek-V3 0324'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-V3 0324's cutoff date.

o3-mini

Sep 2023

DeepSeek-V3 0324

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Provider Availability

o3-mini is available from Azure, OpenAI. DeepSeek-V3 0324 is available from Novita.

o3-mini

azure logo
Azure
Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M
openai logo
OpenAI
Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M

DeepSeek-V3 0324

novita logo
Novita
Input Price:Input: $0.28/1MOutput Price:Output: $1.14/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (200,000 tokens)
Higher AIME 2024 score (87.3% vs 59.4%)
Higher GPQA score (77.2% vs 68.4%)
DeepSeek
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
o3-mini
DeepSeek
DeepSeek-V3 0324

FAQ

Common questions about o3-mini vs DeepSeek-V3 0324

o3-mini significantly outperforms across most benchmarks. o3-mini is made by OpenAI and DeepSeek-V3 0324 is made by DeepSeek. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
o3-mini scores COLLIE: 98.7%, MATH: 97.9%, IFEval: 93.9%, MGSM: 92.0%, AIME 2024: 87.3%. DeepSeek-V3 0324 scores MATH-500: 94.0%, MMLU-Pro: 81.2%, GPQA: 68.4%, AIME 2024: 59.4%, LiveCodeBench: 49.2%.
DeepSeek-V3 0324 is 3.9x cheaper for input tokens. o3-mini costs $1.10/M input and $4.40/M output via azure. DeepSeek-V3 0324 costs $0.28/M input and $1.14/M output via novita.
o3-mini supports 200K tokens and DeepSeek-V3 0324 supports 164K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 164K), input pricing ($1.10 vs $0.28/M), licensing (Proprietary vs MIT + Model License (Commercial use allowed)). See the full comparison above for benchmark-by-benchmark results.
o3-mini is developed by OpenAI and DeepSeek-V3 0324 is developed by DeepSeek.