Author's Description
The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason using chain of thought. The o1 models are optimized for math, science, programming, and other STEM-related tasks. They consistently exhibit PhD-level accuracy on benchmarks in physics, chemistry, and biology. Learn more in the [launch announcement](https://openai.com/o1).
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
OpenAI's o1 model, created on December 17, 2024, demonstrates a strong focus on reasoning and STEM-related tasks, as evidenced by its design to "spend more time thinking before responding" and its optimization for math, science, and programming. The model exhibits moderate speed performance, ranking in the 26th percentile across benchmarks, indicating it is not among the fastest models available. In terms of cost, o1 is positioned at premium pricing levels, ranking in the 2nd percentile, making it a more expensive option. A significant strength of o1 is its exceptional reliability, achieving the 100th percentile with minimal technical failures, ensuring consistent and usable responses. Across benchmark categories, o1 shows outstanding accuracy in Reasoning (98.0%), General Knowledge (99.8%), and Instruction Following (77.0%), placing it in the top percentiles for these areas. Its Coding performance is also strong at 92.0% accuracy. While its Email Classification accuracy is high at 98.0%, its percentile ranking (54th) suggests other models perform similarly. The model consistently achieves high accuracy across all tested categories, with its lowest accuracy in Instruction Following still being very competitive. Key strengths include its robust reasoning capabilities, high general knowledge, and remarkable reliability. The primary weakness lies in its premium pricing, which may be a consideration for cost-sensitive applications.
Model Pricing
Current Pricing
Feature | Price (per 1M tokens) |
---|---|
Prompt | $15 |
Completion | $60 |
Input Cache Read | $7.5 |
Price History
Available Endpoints
Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
---|---|---|---|---|
OpenAI
|
OpenAI | openai/o1-2024-12-17 | 200K | $15 / 1M tokens | $60 / 1M tokens |
Benchmark Results
Benchmark | Category | Reasoning | Free | Executions | Accuracy | Cost | Duration |
---|
Other Models by openai
|
Released | Params | Context |
|
Speed | Ability | Cost |
---|---|---|---|---|---|---|---|
OpenAI: o3 Pro | Jun 10, 2025 | ~400B | 200K |
Image input
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Text input
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|
— | — | +$$$$$ |
OpenAI: Codex Mini | May 16, 2025 | — | 200K |
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OpenAI: o4 Mini High | Apr 16, 2025 | — | 200K |
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|
★★ | ★★★★★ | $$$$$ |
OpenAI: o3 | Apr 16, 2025 | ~400B | 200K |
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File input
Text input
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|
— | — | $$$$$ |
OpenAI: o4 Mini | Apr 16, 2025 | — | 200K |
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|
★★ | ★★★★★ | $$$$$ |
OpenAI: GPT-4.1 | Apr 14, 2025 | ~1.8T | 1M |
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Text input
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★★★★★ | ★★★★★ | $$$$$ |
OpenAI: GPT-4.1 Mini | Apr 14, 2025 | ~300B | 1M |
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File input
Text input
Text output
|
★★★★ | ★★★★ | $$$ |
OpenAI: GPT-4.1 Nano | Apr 14, 2025 | ~50B | 1M |
Image input
File input
Text input
Text output
|
★★★★★ | ★★★★ | $$ |
OpenAI: o1-pro | Mar 19, 2025 | 300B | 200K |
Image input
Text input
Text output
|
★ | ★★★★ | +$$$$$ |
OpenAI: GPT-4o-mini Search Preview | Mar 12, 2025 | ~8B | 128K |
Text input
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★★★ | ★★★ | $$ |
OpenAI: GPT-4o Search Preview | Mar 12, 2025 | ~200B | 128K |
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★★★ | ★★★ | $$$$$ |
OpenAI: GPT-4.5 (Preview) Unavailable | Feb 27, 2025 | ~12.8T | 128K |
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Text input
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OpenAI: o3 Mini High | Feb 12, 2025 | 200B | 200K |
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Text output
|
★★ | ★★★★★ | $$$$$ |
OpenAI: o3 Mini | Jan 31, 2025 | 200B | 200K |
Text input
Text output
|
★★ | ★★★★★ | $$$$$ |
OpenAI: GPT-4o (2024-11-20) | Nov 20, 2024 | ~200B | 128K |
Image input
File input
Text input
Text output
|
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Text input
Text output
|
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OpenAI: o1-preview Unavailable | Sep 11, 2024 | 300B | 128K |
Text input
Text output
|
★★ | ★★★★★ | +$$$$$ |
OpenAI: o1-preview (2024-09-12) Unavailable | Sep 11, 2024 | 300B | 128K |
Text input
Text output
|
★★ | ★★★★★ | +$$$$$ |
OpenAI: o1-mini (2024-09-12) | Sep 11, 2024 | ~100B | 128K |
Text input
Text output
|
— | ★ | $$$$$ |
OpenAI: ChatGPT-4o | Aug 13, 2024 | ~200B | 128K |
Image input
Text input
Text output
|
★★★★★ | ★ | $$$$$ |
OpenAI: GPT-4o (2024-08-06) | Aug 05, 2024 | ~200B | 128K |
Image input
File input
Text input
Text output
|
★★★★★ | ★★★★★ | $$$$$ |
OpenAI: GPT-4o-mini | Jul 17, 2024 | ~8B | 128K |
Image input
File input
Text input
Text output
|
★★★★★ | ★★★★ | $$ |
OpenAI: GPT-4o-mini (2024-07-18) | Jul 17, 2024 | ~8B | 128K |
Image input
File input
Text input
Text output
|
★★★★★ | ★★★★ | $$ |
OpenAI: GPT-4o | May 12, 2024 | ~200B | 128K |
Image input
File input
Text input
Text output
|
★★★★★ | ★★★★★ | $$$$$ |
OpenAI: GPT-4o (extended) | May 12, 2024 | ~200B | 128K |
Image input
File input
Text input
Text output
|
★★★★ | ★ | +$$$$$ |
OpenAI: GPT-4o (2024-05-13) | May 12, 2024 | ~200B | 128K |
Image input
File input
Text input
Text output
|
★★★★★ | ★ | $$$$$ |
OpenAI: GPT-4 Turbo | Apr 08, 2024 | — | 128K |
Image input
Text input
Text output
|
★★★★ | ★★★★ | +$$$$$ |
OpenAI: GPT-3.5 Turbo (older v0613) | Jan 24, 2024 | 175B | 4K |
Text input
Text output
|
★★★★★ | ★ | $$$$ |
OpenAI: GPT-4 Turbo Preview | Jan 24, 2024 | — | 128K |
Text input
Text output
|
★★★★ | ★ | +$$$$$ |
OpenAI: GPT-3.5 Turbo 16k (older v1106) Unavailable | Nov 05, 2023 | 175B | 16K |
Text input
Text output
|
— | ★ | $$$$$ |
OpenAI: GPT-4 Turbo (older v1106) | Nov 05, 2023 | — | 128K |
Text input
Text output
|
★★★★★ | ★ | +$$$$$ |
OpenAI: GPT-3.5 Turbo Instruct | Sep 27, 2023 | 175B | 4K |
Text input
Text output
|
★★★★★ | ★★ | $$$$ |
OpenAI: GPT-3.5 Turbo 16k | Aug 27, 2023 | 175B | 16K |
Text input
Text output
|
★★★★★ | ★★★ | $$$$$ |
OpenAI: GPT-3.5 Turbo 16k Unavailable | May 27, 2023 | 175B | 16K |
Text input
Text output
|
★★★★★ | ★★ | $$$ |
OpenAI: GPT-3.5 Turbo | May 27, 2023 | 175B | 16K |
Text input
Text output
|
★★★★★ | ★★ | $$$ |
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Text input
Text output
|
★★★ | ★★ | +$$$$$ |
OpenAI: GPT-4 (older v0314) | May 27, 2023 | — | 8K |
Text input
Text output
|
★★★★★ | ★ | +$$$$$ |