Model Comparison

GPT-4o vs o3

o3 significantly outperforms across most benchmarks. o3 is 1.3x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

GPT-4o outperforms in 0 benchmarks, while o3 is better at 2 benchmarks (GPQA, MathVista).

o3 significantly outperforms across most benchmarks.

Tue Apr 07 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

o3 costs less

For input processing, GPT-4o ($2.50/1M tokens) is 1.3x more expensive than o3 ($2.00/1M tokens).

For output processing, GPT-4o ($10.00/1M tokens) is 1.3x more expensive than o3 ($8.00/1M tokens).

In conclusion, GPT-4o is more expensive than o3.*

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

Lowest available price from all providers
Tue Apr 07 2026 • llm-stats.com
OpenAI
GPT-4o
Input tokens$2.50
Output tokens$10.00
Best providerAzure
OpenAI
o3
Input tokens$2.00
Output tokens$8.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

o3 accepts 200,000 input tokens compared to GPT-4o's 128,000 tokens. o3 can generate longer responses up to 100,000 tokens, while GPT-4o is limited to 4,096 tokens.

OpenAI
GPT-4o
Input128,000 tokens
Output4,096 tokens
OpenAI
o3
Input200,000 tokens
Output100,000 tokens
Tue Apr 07 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-4o and o3 support multimodal inputs.

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

GPT-4o

Text
Images
Audio
Video

o3

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.

GPT-4o

Proprietary

Closed source

o3

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-4o was released on 2024-05-13, while o3 was released on 2025-04-16.

o3 is 11 months newer than GPT-4o.

GPT-4o

May 13, 2024

1.9 years ago

o3

Apr 16, 2025

11 months ago

11mo newer

Knowledge Cutoff

When training data ends

o3 has a documented knowledge cutoff of 2024-05-31, while GPT-4o's cutoff date is not specified.

We can confirm o3's training data extends to 2024-05-31, but cannot make a direct comparison without GPT-4o's cutoff date.

GPT-4o

—

o3

May 2024

Provider Availability

GPT-4o is available from Azure, OpenAI. o3 is available from OpenAI.

GPT-4o

azure logo
Azure
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M
openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M

o3

openai logo
OpenAI
Input Price:Input: $2.00/1MOutput Price:Output: $8.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
OpenAI
Larger context window (200,000 tokens)
Less expensive input tokens
Less expensive output tokens
Higher GPQA score (83.3% vs 53.6%)
Higher MathVista score (86.8% vs 63.8%)
OpenAIGPT-4o
OpenAIo3
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-4o
OpenAI
o3

FAQ

Common questions about GPT-4o vs o3

o3 significantly outperforms across most benchmarks. GPT-4o is made by OpenAI and o3 is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
GPT-4o scores MGSM: 90.5%, HumanEval: 90.2%, MMLU: 88.7%, DROP: 83.4%, MATH: 76.6%. o3 scores COLLIE: 98.4%, AIME 2024: 91.6%, ARC-AGI: 88.0%, MathVista: 86.8%, AIME 2025: 86.4%.
o3 is 1.3x cheaper for input tokens. GPT-4o costs $2.50/M input and $10.00/M output via azure. o3 costs $2.00/M input and $8.00/M output via openai.
GPT-4o supports 128K tokens and o3 supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (128K vs 200K), input pricing ($2.50 vs $2.00/M). See the full comparison above for benchmark-by-benchmark results.