Author's Description
The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. 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). Note: This model is currently experimental and not suitable for production use-cases, and may be heavily rate-limited.
Key Specifications
Supported Parameters
This model supports the following parameters:
Performance Summary
OpenAI's o1-mini, created on September 11, 2024, is an experimental model designed for STEM-related tasks, emphasizing extended "thinking time" before responding. It consistently ranks among the fastest models, demonstrating exceptional speed across benchmarks. Price data is currently unavailable, suggesting potential free-tier usage. The model exhibits outstanding reliability, achieving a 100% success rate across benchmarks, indicating it consistently provides usable responses without technical failures. Despite its intended specialization and high reliability, the o1-mini currently shows significant weaknesses in benchmark performance. It achieved 0.0% accuracy in both the "General Knowledge (Baseline)" and "Email Classification (Baseline)" tests, with very long response durations (311085ms and 200955ms respectively). This suggests that while the model is fast in terms of processing, its current accuracy for these general tasks is non-existent. Its strength lies in its speed and technical reliability, but its current inability to provide correct answers across diverse categories, even with extended processing times, is a critical limitation. As an experimental model, these performance metrics are likely to evolve.
Model Pricing
Current Pricing
| Feature | Price (per 1M tokens) |
|---|---|
| Prompt | $1.1 |
| Completion | $4.4 |
| Input Cache Read | $0.55 |
Price History
Available Endpoints
| Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
|---|---|---|---|---|
|
OpenAI
|
OpenAI | openai/o1-mini | 128K | $1.1 / 1M tokens | $4.4 / 1M tokens |
Benchmark Results
| Benchmark | Category | Reasoning | Strategy | Free | Executions | Accuracy | Cost | Duration |
|---|
Other Models by openai
|
|
Released | Params | Context |
|
Speed | Ability | Cost |
|---|---|---|---|---|---|---|---|
| OpenAI: GPT-5.2 Chat | Dec 10, 2025 | — | 128K |
Text input
Image input
File input
Text output
|
★★★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-5.2 Pro | Dec 10, 2025 | — | 400K |
Text input
Image input
File input
Text output
|
— | — | +$$$$$ |
| OpenAI: GPT-5.2 | Dec 10, 2025 | — | 400K |
Text input
Image input
File input
Text output
|
★★★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-5.1-Codex-Max | Dec 04, 2025 | — | 400K |
Text input
Image input
Text output
|
★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-5.1 | Nov 13, 2025 | — | 400K |
Text input
Image input
File input
Text output
|
★★★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-5.1 Chat | Nov 13, 2025 | — | 128K |
Text input
Image input
File input
Text output
|
★★★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-5.1-Codex | Nov 13, 2025 | — | 400K |
Text input
Image input
Text output
|
★★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-5.1-Codex-Mini | Nov 13, 2025 | — | 400K |
Text input
Image input
Text output
|
★★★ | ★★★★★ | $$$$$ |
| OpenAI: Text Embedding 3 Large Unavailable | Oct 30, 2025 | — | 8K |
Text input
Text output
|
— | — | $ |
| OpenAI: gpt-oss-safeguard-20b | Oct 29, 2025 | 20B | 131K |
Text input
Text output
|
★★★★★ | ★★★★ | $$$ |
| OpenAI: GPT-5 Image Mini | Oct 16, 2025 | — | 400K |
Text input
Image input
File input
Text output
Image output
|
— | — | $$$$$ |
| OpenAI: GPT-5 Image | Oct 14, 2025 | — | 400K |
Text input
Image input
File input
Text output
Image output
|
— | — | $$$$$ |
| OpenAI: o3 Deep Research | Oct 10, 2025 | ~400B | 200K |
Text input
Image input
File input
Text output
|
— | — | +$$$$$ |
| OpenAI: o4 Mini Deep Research | Oct 10, 2025 | — | 200K |
Text input
Image input
File input
Text output
|
— | — | $$$$$ |
| OpenAI: GPT-5 Pro | Oct 06, 2025 | — | 400K |
Text input
Image input
File input
Text output
|
— | — | +$$$$$ |
| OpenAI: GPT-5 Codex | Sep 23, 2025 | — | 400K |
Text input
Image input
Text output
|
★★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-4o Audio | Aug 14, 2025 | ~200B | 128K |
Text input
Audio input
Text output
|
— | — | $$$$$ |
| OpenAI: GPT-5 Chat | Aug 07, 2025 | — | 128K |
Text input
Image input
File input
Text output
|
★★★★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-5 | Aug 07, 2025 | — | 400K |
Text input
Image input
File input
Text output
|
★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-5 Mini | Aug 07, 2025 | — | 400K |
Text input
Image input
File input
Text output
|
★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-5 Nano | Aug 07, 2025 | — | 400K |
Text input
Image input
File input
Text output
|
★★ | ★★★★★ | $$$$ |
| OpenAI: gpt-oss-120b | Aug 05, 2025 | 120B | 131K |
Text input
Text output
|
★★★ | ★★★★ | $$$ |
| OpenAI: gpt-oss-120b (exacto) | Aug 05, 2025 | 120B | 131K |
Text input
Text output
|
— | — | $$ |
| OpenAI: gpt-oss-20b | Aug 05, 2025 | 20B | 131K |
Text input
Text output
|
★ | ★★★★ | $$ |
| OpenAI: o3 Pro | Jun 10, 2025 | ~400B | 200K |
Text input
Image input
File input
Text output
|
— | — | +$$$$$ |
| OpenAI: Codex Mini | May 16, 2025 | — | 200K |
Text input
Image input
Text output
|
★★★ | ★★★★ | $$$$$ |
| OpenAI: o4 Mini High | Apr 16, 2025 | — | 200K |
Text input
Image input
File input
Text output
|
★★ | ★★★★ | $$$$$ |
| OpenAI: o3 | Apr 16, 2025 | ~400B | 200K |
Text input
Image input
File input
Text output
|
★★ | ★★★★★ | $$$$$ |
| OpenAI: o4 Mini | Apr 16, 2025 | — | 200K |
Text input
Image input
File input
Text output
|
★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-4.1 | Apr 14, 2025 | ~1.8T | 1M |
Text input
Image input
File input
Text output
|
★★★★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-4.1 Mini | Apr 14, 2025 | ~300B | 1M |
Text input
Image input
File input
Text output
|
★★★★ | ★★★★ | $$$ |
| OpenAI: GPT-4.1 Nano | Apr 14, 2025 | ~50B | 1M |
Text input
Image input
File input
Text output
|
★★★★★ | ★★★ | $$ |
| OpenAI: o1-pro | Mar 19, 2025 | 300B | 200K |
Text input
Image input
File input
Text output
|
★ | ★★★ | +$$$$$ |
| OpenAI: GPT-4o-mini Search Preview | Mar 12, 2025 | ~8B | 128K |
Text input
Text output
|
★★★ | ★★ | $$$ |
| OpenAI: GPT-4o Search Preview | Mar 12, 2025 | ~200B | 128K |
Text input
Text output
|
★★★ | ★★★ | $$$$$ |
| OpenAI: GPT-4.5 (Preview) Unavailable | Feb 27, 2025 | ~12.8T | 128K |
Text input
Image input
Text output
|
★★★★★ | ★★★★★ | +$$$$$ |
| OpenAI: o3 Mini High | Feb 12, 2025 | 200B | 200K |
Text input
File input
Text output
|
★★ | ★★★★ | $$$$$ |
| OpenAI: o3 Mini | Jan 31, 2025 | 200B | 200K |
Text input
File input
Text output
|
★★ | ★★★★★ | $$$$$ |
| OpenAI: o1 | Dec 17, 2024 | 300B | 200K |
Text input
Image input
File input
Text output
|
★★ | ★★★★★ | +$$$$$ |
| OpenAI: GPT-4o (2024-11-20) | Nov 20, 2024 | ~200B | 128K |
Text input
Image input
File input
Text output
|
★★★★★ | ★★★★ | $$$$$ |
| OpenAI: o1-preview Unavailable | Sep 11, 2024 | 300B | 128K |
Text input
Text output
|
★★ | ★★★★★ | +$$$$$ |
| OpenAI: o1-preview (2024-09-12) Unavailable | Sep 11, 2024 | 300B | 128K |
Text input
Text output
|
★★ | ★★★★★ | +$$$$$ |
| OpenAI: o1-mini (2024-09-12) Unavailable | Sep 11, 2024 | ~100B | 128K |
Text input
Text output
|
— | ★ | $$$$$ |
| OpenAI: ChatGPT-4o | Aug 13, 2024 | ~200B | 128K |
Text input
Image input
Text output
|
★★★★★ | ★★ | $$$$$ |
| OpenAI: GPT-4o (2024-08-06) | Aug 05, 2024 | ~200B | 128K |
Text input
Image input
File input
Text output
|
★★★★ | ★★★★ | $$$$$ |
| OpenAI: GPT-4o-mini | Jul 17, 2024 | ~8B | 128K |
Text input
Image input
File input
Text output
|
★★★★★ | ★★★ | $$ |
| OpenAI: GPT-4o-mini (2024-07-18) | Jul 17, 2024 | ~8B | 128K |
Text input
Image input
File input
Text output
|
★★★★★ | ★★★ | $$ |
| OpenAI: GPT-4o | May 12, 2024 | ~200B | 128K |
Text input
Image input
File input
Text output
|
★★★★ | ★★★★ | $$$$$ |
| OpenAI: GPT-4o (extended) | May 12, 2024 | ~200B | 128K |
Text input
Image input
File input
Text output
|
★★★★★ | ★★ | +$$$$$ |
| OpenAI: GPT-4o (2024-05-13) | May 12, 2024 | ~200B | 128K |
Text input
Image input
File input
Text output
|
★★★★★ | ★★★ | $$$$$ |
| OpenAI: GPT-4 Turbo | Apr 08, 2024 | — | 128K |
Text input
Image input
Text output
|
★★★★ | ★★★★ | +$$$$$ |
| OpenAI: GPT-3.5 Turbo (older v0613) | Jan 24, 2024 | 175B | 4K |
Text input
Text output
|
★★★★★ | ★ | $$$ |
| OpenAI: GPT-4 Turbo Preview | Jan 24, 2024 | — | 128K |
Text input
Text output
|
★★★★ | ★★ | +$$$$$ |
| OpenAI: GPT-3.5 Turbo 16k (older v1106) Unavailable | Nov 05, 2023 | 175B | 16K |
Text input
Text output
|
— | — | $$$$$ |
| OpenAI: GPT-4 Turbo (older v1106) | Nov 05, 2023 | — | 128K |
Text input
Text output
|
★★★★ | ★★★★ | +$$$$$ |
| OpenAI: GPT-3.5 Turbo Instruct | Sep 27, 2023 | 175B | 4K |
Text input
Text output
|
★★★★★ | ★★ | $$$$ |
| OpenAI: GPT-3.5 Turbo 16k | Aug 27, 2023 | 175B | 16K |
Text input
Text output
|
★★★★★ | ★★★★★ | $$$$$ |
| OpenAI: GPT-3.5 Turbo 16k Unavailable | May 27, 2023 | 175B | 16K |
Text input
Text output
|
— | — | $$$$ |
| OpenAI: GPT-3.5 Turbo | May 27, 2023 | 175B | 16K |
Text input
Text output
|
— | — | $$$$ |
| OpenAI: GPT-4 | May 27, 2023 | — | 8K |
Text input
Text output
|
★★★ | ★★ | +$$$$$ |
| OpenAI: GPT-4 (older v0314) | May 27, 2023 | — | 8K |
Text input
Text output
|
★★★★ | ★★ | +$$$$$ |