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GPT-4o vs o1-preview

GPT-4o and o1-preview are closely matched at 14.1 and 16.6 on the LLM Stats Score. GPT-4o is 6.0x cheaper per token.

OpenAI · OpenAI · Updated for 2026

Which is better?

GPT-4o and o1-preview are closely matched on the overall LLM Stats Score at 14.1 and 16.6.

In the 5 individual benchmarks reported for both models, o1-preview wins 5; this is a narrower head-to-head signal than the composite indexes.

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.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose GPT-4o

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

Choose o1-preview

  • you value its reported benchmark strengths — it wins 5 of 5 exact shared results
  • you want the most recent training data — it shipped Sep 2024

At a glance

The differences that matter most.

GPT-4o
OpenAI
o1-preview
OpenAI
Core performance indexes
LLM Stats Score
14.1
#246
16.6
#228
Reasoning
15.9
#227
16.8
#221
Coding
-0.6
#253
-3.2
#260
Cost, coverage & limits
Benchmark wins
0 of 5
5 of 5
Input price
$2.50 / M
$15.00 / M
Output price
$10.00 / M
$60.00 / M
Context window
128,000
128,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
GPT-4o
o1-preview
Math
12.5#235
20.2#163
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

38 reported for GPT-4o · 8 for o1-preview

5 shared

GPT-4o outperforms in 0 benchmarks, while o1-preview is better at 5 benchmarks (AIME 2024, GPQA, MMLU, SimpleQA, SWE-Bench Verified).

o1-preview significantly outperforms across most benchmarks.

Wed Oct 07 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

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-preview ($15.00/1M tokens).

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

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

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

Lowest available price from all providers
Wed Oct 07 2026 • llm-stats.com
OpenAI
GPT-4o
Input tokens$2.50
Output tokens$10.00
Best providerAzure
OpenAI
o1-preview
Input tokens$15.00
Output tokens$60.00
Best providerOpenAI
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Both models have the same input context window of 128,000 tokens. o1-preview can generate longer responses up to 32,768 tokens, while GPT-4o is limited to 16,384 tokens.

OpenAI
GPT-4o
Input128,000 tokens
Output16,384 tokens
OpenAI
o1-preview
Input128,000 tokens
Output32,768 tokens
Wed Oct 07 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

GPT-4o supports multimodal inputs, whereas o1-preview 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-preview

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-preview

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-4o was released on 2024-08-06, while o1-preview was released on 2024-09-12.

o1-preview is 1 month newer than GPT-4o.

GPT-4o

Aug 6, 2024

2.2 years ago

o1-preview

Sep 12, 2024

2.1 years ago

1mo 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-preview is available from OpenAI, Azure.

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-preview

openai logo
OpenAI
Input Price:Input: $15.00/1MOutput Price:Output: $60.00/1M
azure logo
Azure
Input Price:Input: $16.50/1MOutput Price:Output: $66.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against GPT-4o and o1-preview side-by-side, then vote on the output you prefer.

GPT-4o
✓ Preferred
o1-preview
Open in Playground

FAQ

Common questions about GPT-4o vs o1-preview.

Which is better, GPT-4o or o1-preview?

GPT-4o and o1-preview are closely matched on the LLM Stats Score at 14.1 and 16.6. GPT-4o is made by OpenAI and o1-preview is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

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

GPT-4o scores AI2D: 94.2%, DocVQA: 92.8%, ChartQA: 85.7%, MMLU: 85.7%, CharXiv-D: 85.3%. o1-preview scores MGSM: 90.8%, MMLU: 90.8%, MATH: 85.5%, GPQA: 73.3%, LiveBench: 52.3%.

Is GPT-4o cheaper than o1-preview?

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

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

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

Key differences include LLM Stats Score (14.1 vs 16.6), 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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