Model Comparison

o1 vs GPT-4o

o1 shows notably better performance in the majority of benchmarks. GPT-4o is 6.0x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

6 benchmarks

o1 outperforms in 4 benchmarks (GPQA, MATH, MathVista, MMLU), while GPT-4o is better at 2 benchmarks (HumanEval, MGSM).

o1 shows notably better performance in the majority of benchmarks.

Mon Jun 01 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-4o costs less

For input processing, o1 ($15.00/1M tokens) is 6.0x more expensive than GPT-4o ($2.50/1M tokens).

For output processing, o1 ($60.00/1M tokens) is 6.0x more expensive than GPT-4o ($10.00/1M tokens).

In conclusion, o1 is more expensive than GPT-4o.*

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

Lowest available price from all providers
Mon Jun 01 2026 • llm-stats.com
OpenAI
o1
Input tokens$15.00
Output tokens$60.00
Best providerAzure
OpenAI
GPT-4o
Input tokens$2.50
Output tokens$10.00
Best providerAzure
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

o1 accepts 200,000 input tokens compared to GPT-4o's 128,000 tokens. o1 can generate longer responses up to 100,000 tokens, while GPT-4o is limited to 4,096 tokens.

OpenAI
o1
Input200,000 tokens
Output100,000 tokens
OpenAI
GPT-4o
Input128,000 tokens
Output4,096 tokens
Mon Jun 01 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-4o supports multimodal inputs, whereas o1 does not.

GPT-4o can handle both text and other forms of data like images, making it suitable for multimodal applications.

o1

Text
Images
Audio
Video

GPT-4o

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.

o1

Proprietary

Closed source

GPT-4o

Proprietary

Closed source

Release Timeline

When each model was launched

o1 was released on 2024-12-17, while GPT-4o was released on 2024-05-13.

o1 is 7 months newer than GPT-4o.

o1

Dec 17, 2024

1.5 years ago

7mo newer
GPT-4o

May 13, 2024

2.1 years ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

o1 is available from Azure, OpenAI. GPT-4o is available from Azure, OpenAI.

o1

azure logo
Azure
Input Price:Input: $15.00/1MOutput Price:Output: $60.00/1M
openai logo
OpenAI
Input Price:Input: $15.00/1MOutput Price:Output: $60.00/1M

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
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (200,000 tokens)
Higher GPQA score (78.0% vs 53.6%)
Higher MATH score (96.4% vs 76.6%)
Higher MathVista score (71.8% vs 63.8%)
Higher MMLU score (91.8% vs 88.7%)
OpenAI
Supports multimodal inputs
Less expensive input tokens
Less expensive output tokens
Higher HumanEval score (90.2% vs 88.1%)
Higher MGSM score (90.5% vs 89.3%)
OpenAIo1
OpenAIGPT-4o
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
o1
OpenAI
GPT-4o

FAQ

Common questions about o1 vs GPT-4o.

Which is better, o1 or GPT-4o?

o1 shows notably better performance in the majority of benchmarks. o1 is made by OpenAI and GPT-4o is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does o1 compare to GPT-4o in benchmarks?

o1 scores GSM8k: 97.1%, MATH: 96.4%, GPQA Physics: 92.8%, MMLU: 91.8%, MGSM: 89.3%. GPT-4o scores MGSM: 90.5%, HumanEval: 90.2%, MMLU: 88.7%, DROP: 83.4%, MATH: 76.6%.

Is o1 cheaper than GPT-4o?

GPT-4o is 6.0x cheaper for input tokens. o1 costs $15.00/M input and $60.00/M output via azure. GPT-4o costs $2.50/M input and $10.00/M output via azure.

What are the context window sizes for o1 and GPT-4o?

o1 supports 200K tokens and GPT-4o supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between o1 and GPT-4o?

Key differences include context window (200K vs 128K), input pricing ($15.00 vs $2.50/M), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.