Model Comparison

o3-mini vs DeepSeek-R1

Comparing o3-mini and DeepSeek-R1 across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

o3-mini and DeepSeek-R1 don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

DeepSeek-R1 costs less

For input processing, o3-mini ($1.10/1M tokens) is 2.0x more expensive than DeepSeek-R1 ($0.55/1M tokens).

For output processing, o3-mini ($4.40/1M tokens) is 2.0x more expensive than DeepSeek-R1 ($2.19/1M tokens).

In conclusion, o3-mini is more expensive than DeepSeek-R1.*

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

Lowest available price from all providers
Sun Mar 29 2026 • llm-stats.com
OpenAI
o3-mini
Input tokens$1.10
Output tokens$4.40
Best providerAzure
DeepSeek
DeepSeek-R1
Input tokens$0.55
Output tokens$2.19
Best providerDeepSeek
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-R1's 131,072 tokens. DeepSeek-R1 can generate longer responses up to 131,072 tokens, while o3-mini is limited to 100,000 tokens.

OpenAI
o3-mini
Input200,000 tokens
Output100,000 tokens
DeepSeek
DeepSeek-R1
Input131,072 tokens
Output131,072 tokens
Sun Mar 29 2026 • llm-stats.com

License

Usage and distribution terms

o3-mini is licensed under a proprietary license, while DeepSeek-R1 uses MIT.

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

o3-mini

Proprietary

Closed source

DeepSeek-R1

MIT

Open weights

Release Timeline

When each model was launched

o3-mini was released on 2025-01-30, while DeepSeek-R1 was released on 2025-01-20.

o3-mini is 0 month newer than DeepSeek-R1.

o3-mini

Jan 30, 2025

1.2 years ago

1w newer
DeepSeek-R1

Jan 20, 2025

1.2 years ago

Knowledge Cutoff

When training data ends

o3-mini has a documented knowledge cutoff of 2023-09-30, while DeepSeek-R1'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-R1's cutoff date.

o3-mini

Sep 2023

DeepSeek-R1

—

Provider Availability

o3-mini is available from Azure, OpenAI. DeepSeek-R1 is available from DeepSeek, DeepInfra, Together, Fireworks.

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-R1

deepseek logo
DeepSeek
Input Price:Input: $0.55/1MOutput Price:Output: $2.19/1M
deepinfra logo
Deepinfra
Input Price:Input: $0.85/1MOutput Price:Output: $2.50/1M
together logo
Together
Input Price:Input: $7.00/1MOutput Price:Output: $7.00/1M
fireworks logo
Fireworks
Input Price:Input: $8.00/1MOutput Price:Output: $8.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Larger context window (200,000 tokens)
DeepSeek
Less expensive input tokens
Less expensive output tokens
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
o3-mini
DeepSeek
DeepSeek-R1

FAQ

Common questions about o3-mini vs DeepSeek-R1

o3-mini (OpenAI) and DeepSeek-R1 (DeepSeek) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.
o3-mini scores COLLIE: 98.7%, MATH: 97.9%, IFEval: 93.9%, MGSM: 92.0%, AIME 2024: 87.3%.
DeepSeek-R1 is 2.0x cheaper for input tokens. o3-mini costs $1.10/M input and $4.40/M output via azure. DeepSeek-R1 costs $0.55/M input and $2.19/M output via deepseek.
o3-mini supports 200K tokens and DeepSeek-R1 supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 131K), input pricing ($1.10 vs $0.55/M), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.
o3-mini is developed by OpenAI and DeepSeek-R1 is developed by DeepSeek.