Model Comparison

GPT-4o vs o1Which is better in 2026?

o1 significantly outperforms across most benchmarks. GPT-4o is 6.0x cheaper per token.

Verdict: GPT-4o vs o1 — which is better?

GPT-4o (by OpenAI) and o1 (by OpenAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

GPT-4o outperforms in 0 benchmarks, while o1 is better at 10 benchmarks (AIME 2024, GPQA, MathVista, MMLU, MMMLU, MMMU, SimpleQA, SWE-Bench Verified, TAU-bench Airline, TAU-bench Retail). o1 significantly outperforms across most benchmarks.

On price, GPT-4o is roughly 6.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

o1 also accepts a larger context window (200,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose GPT-4o if…

  • cost matters — it's about 6.0x cheaper per token

Choose o1 if…

  • you want the strongest raw capability — it leads on 10 of 10 shared benchmarks
  • you process long inputs — it offers a 200,000 token context window
  • you want the most recent training data — it shipped Dec 2024
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Performance Benchmarks

Comparative analysis across standard metrics

10 benchmarks

GPT-4o outperforms in 0 benchmarks, while o1 is better at 10 benchmarks (AIME 2024, GPQA, MathVista, MMLU, MMMLU, MMMU, SimpleQA, SWE-Bench Verified, TAU-bench Airline, TAU-bench Retail).

o1 significantly outperforms across most benchmarks.

Fri Jun 12 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-4o costs less

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

For output processing, GPT-4o ($10.00/1M tokens) is 6.0x cheaper than o1 ($60.00/1M 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
Fri Jun 12 2026 • llm-stats.com
OpenAI
GPT-4o
Input tokens$2.50
Output tokens$10.00
Best providerAzure
OpenAI
o1
Input tokens$15.00
Output tokens$60.00
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 16,384 tokens.

OpenAI
GPT-4o
Input128,000 tokens
Output16,384 tokens
OpenAI
o1
Input200,000 tokens
Output100,000 tokens
Fri Jun 12 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.

GPT-4o

Text
Images
Audio
Video

o1

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

o1

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-4o was released on 2024-08-06, while o1 was released on 2024-12-17.

o1 is 4 months newer than GPT-4o.

GPT-4o

Aug 6, 2024

1.8 years ago

o1

Dec 17, 2024

1.5 years ago

4mo newer

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

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

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
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Supports multimodal inputs
Less expensive input tokens
Less expensive output tokens
OpenAI
Larger context window (200,000 tokens)
Higher AIME 2024 score (74.3% vs 13.1%)
Higher GPQA score (78.0% vs 70.1%)
Higher MathVista score (71.8% vs 61.4%)
Higher MMLU score (91.8% vs 85.7%)
Higher MMMLU score (87.7% vs 81.4%)
Higher MMMU score (77.6% vs 72.2%)
Higher SimpleQA score (47.0% vs 38.2%)
Higher SWE-Bench Verified score (41.0% vs 33.2%)
Higher TAU-bench Airline score (50.0% vs 42.8%)
Higher TAU-bench Retail score (70.8% vs 60.3%)

Detailed Comparison

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

FAQ

Common questions about GPT-4o vs o1.

Which is better, GPT-4o or o1?

o1 significantly outperforms across most benchmarks. GPT-4o is made by OpenAI and o1 is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

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

GPT-4o scores AI2D: 94.2%, DocVQA: 92.8%, ChartQA: 85.7%, MMLU: 85.7%, CharXiv-D: 85.3%. o1 scores GSM8k: 97.1%, MATH: 96.4%, GPQA Physics: 92.8%, MMLU: 91.8%, MGSM: 89.3%.

Is GPT-4o cheaper than o1?

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

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

GPT-4o supports 128K tokens and o1 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 GPT-4o and o1?

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

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