Model Comparison

o3 vs o4-mini

o3 shows notably better performance in the majority of benchmarks. o4-mini is 1.8x cheaper per token.

Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

11 benchmarks

o3 outperforms in 7 benchmarks (Aider-Polyglot, CharXiv-R, GPQA, MathVista, MMMU, Multi-Challenge, SWE-Bench Verified), while o4-mini is better at 3 benchmarks (AIME 2024, AIME 2025, BrowseComp).

o3 shows notably better performance in the majority of benchmarks.

Sun May 10 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

o4-mini costs less

For input processing, o3 ($2.00/1M tokens) is 1.8x more expensive than o4-mini ($1.10/1M tokens).

For output processing, o3 ($8.00/1M tokens) is 1.8x more expensive than o4-mini ($4.40/1M tokens).

In conclusion, o3 is more expensive than o4-mini.*

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

Lowest available price from all providers
Sun May 10 2026 • llm-stats.com
OpenAI
o3
Input tokens$2.00
Output tokens$8.00
Best providerOpenAI
OpenAI
o4-mini
Input tokens$1.10
Output tokens$4.40
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Both models have the same input context window of 200,000 tokens. Both models can generate responses up to 100,000 tokens.

OpenAI
o3
Input200,000 tokens
Output100,000 tokens
OpenAI
o4-mini
Input200,000 tokens
Output100,000 tokens
Sun May 10 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both o3 and o4-mini support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

o3

Text
Images
Audio
Video

o4-mini

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

o3

Proprietary

Closed source

o4-mini

Proprietary

Closed source

Release Timeline

When each model was launched

Both models were released on 2025-04-16.

They likely represent similar generations of model development.

o3

Apr 16, 2025

1.1 years ago

o4-mini

Apr 16, 2025

1.1 years ago

Knowledge Cutoff

When training data ends

Both models have the same knowledge cutoff date of 2024-05-31.

They should have similar awareness of historical events and information up to this date.

o3

May 2024

o4-mini

May 2024

Provider Availability

o3 is available from OpenAI. o4-mini is available from OpenAI.

o3

openai logo
OpenAI
Input Price:Input: $2.00/1MOutput Price:Output: $8.00/1M

o4-mini

openai logo
OpenAI
Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Higher Aider-Polyglot score (81.3% vs 68.9%)
Higher CharXiv-R score (78.6% vs 72.0%)
Higher GPQA score (83.3% vs 81.4%)
Higher MathVista score (86.8% vs 84.3%)
Higher MMMU score (82.9% vs 81.6%)
Higher Multi-Challenge score (60.4% vs 43.0%)
Higher SWE-Bench Verified score (69.1% vs 68.1%)
OpenAI
Less expensive input tokens
Less expensive output tokens
Higher AIME 2024 score (93.4% vs 91.6%)
Higher AIME 2025 score (92.7% vs 86.4%)
Higher BrowseComp score (51.5% vs 49.7%)
OpenAIo3
OpenAIo4-mini
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
o3
OpenAI
o4-mini

FAQ

Common questions about o3 vs o4-mini.

Which is better, o3 or o4-mini?

o3 shows notably better performance in the majority of benchmarks. o3 is made by OpenAI and o4-mini is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does o3 compare to o4-mini in benchmarks?

o3 scores COLLIE: 98.4%, AIME 2024: 91.6%, ARC-AGI: 88.0%, MathVista: 86.8%, AIME 2025: 86.4%. o4-mini scores AIME 2024: 93.4%, AIME 2025: 92.7%, MathVista: 84.3%, MMMU: 81.6%, GPQA: 81.4%.

Is o3 cheaper than o4-mini?

o4-mini is 1.8x cheaper for input tokens. o3 costs $2.00/M input and $8.00/M output via openai. o4-mini costs $1.10/M input and $4.40/M output via openai.

What are the context window sizes for o3 and o4-mini?

o3 supports 200K tokens and o4-mini supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between o3 and o4-mini?

Key differences include input pricing ($2.00 vs $1.10/M). See the full comparison above for benchmark-by-benchmark results.