AI model comparison
o1-pro vs GPT-4 Turbo
Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.
OpenAI
o1-pro
The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning.
- Input / 1M
- $150
- Output / 1M
- $600
- Context
- 200K
OpenAI
GPT-4 Turbo
The latest GPT-4 Turbo model with vision capabilities. Vision requests can now use JSON mode and function calling.
- Input / 1M
- $10
- Output / 1M
- $30
- Context
- 128K
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
GPT-4 Turbo
17.1x cheaper for a typical chat
Higher intelligence score
o1-pro
12.4 vs 7 on Artificial Analysis
Larger context window
o1-pro
200K vs 128K tokens
Newer release
o1-pro
Released March 19, 2025
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
o1-pro12.4GPT-4 Turbo7Coding index
o1-proNot availableGPT-4 Turbo21.5Agentic index
o1-proNot availableGPT-4 TurboNot availablePricing
o1-pro vs GPT-4 Turbo API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | o1-pro | GPT-4 Turbo |
|---|---|---|
| Input tokensPer 1M tokens | $150 | $10 |
| Output tokensPer 1M tokens | $600 | $30 |
| Cached input (read)Per 1M tokens | Not available | Not available |
| Cache writePer 1M tokens | Not available | Not available |
| Web searchPer request | $0.01 | Not available |
What it costs in practice
Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.
Chat message
2K in, 500 out
o1-pro$600GPT-4 Turbo$35Coding task
30K in, 4K out
o1-pro$6900GPT-4 Turbo$420Long document summary
150K in, 2K out
o1-pro$23700GPT-4 Turbo$1560Specs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | o1-pro | GPT-4 Turbo |
|---|---|---|
| Context window | 200K tokens | 128K tokens |
| Max output | 100K tokens | 4K tokens |
| Input types | File, Image, Text | Image, Text |
| Output types | Text | Text |
| Reasoning effort levels | Not available | Not available |
| Default reasoning effort | Not available | Not available |
| Release date | March 19, 2025 | April 9, 2024 |
Features
Supported features
API features available for each model.
| Metric | o1-pro | GPT-4 Turbo |
|---|---|---|
| Tool calling | Not supported | Supported |
| Structured outputs | Supported | Supported |
| JSON mode | Supported | Supported |
| Reasoning | Supported | Not supported |
| Temperature | Not supported | Supported |
| Stop sequences | Not supported | Supported |
| Deterministic seed | Supported | Supported |
| Verbosity control | Not supported | Not supported |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
GPT-4 TurboView full model details- GPT-4 Turbo vs o1
- GPT-4 Turbo vs GPT-4.1
- GPT-4 Turbo vs Nova Premier 1.0
- GPT-4 Turbo vs GPT-4o (2024-11-20)
- GPT-4 Turbo vs GPT-4o (2024-08-06)
- GPT-4 Turbo vs Sonar Pro
- GPT-4 Turbo vs Mistral Large 2407
- GPT-4 Turbo vs GPT-4o (2024-05-13)
- GPT-4 Turbo vs GPT-4
- GPT-4 Turbo vs Mistral Large
- GPT-4 Turbo vs Mixtral 8x22B Instruct
Our take
GPT-4 Turbo is 17.1x cheaper for a typical chat. o1-pro scores higher on the Artificial Analysis Intelligence Index (12.4 vs 7). o1-pro has the larger context window (200K vs 128K tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.
FAQ
Frequently asked questions
Is o1-pro or GPT-4 Turbo cheaper?
GPT-4 Turbo is cheaper for a typical chat (2K input tokens and 500 output tokens). GPT-4 Turbo costs $10 per 1M input tokens and $30 per 1M output tokens, while o1-pro costs $150 per 1M input tokens and $600 per 1M output tokens.
Which has a bigger context window, o1-pro or GPT-4 Turbo?
o1-pro supports up to 200K tokens of context, compared with 128K for GPT-4 Turbo.
Is o1-pro smarter than GPT-4 Turbo?
On the Artificial Analysis Intelligence Index, o1-pro scores 12.4 and GPT-4 Turbo scores 7, putting o1-pro ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.
Can I use o1-pro and GPT-4 Turbo at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see o1-pro and GPT-4 Turbo answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to o1-pro and GPT-4 Turbo at the same time. Compare the answers side by side and keep the best one.