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# OpenAI released o1 series AI models with enhanced reasoning
- URL: https://www.testingcatalog.com/openai-released-o1-series-ai-models-with-enhanced-reasoning/
- Published: 2024-09-14T19:11:31.000Z
- Updated: 2024-09-14T19:12:03.000Z
- Author: Alexey Shabanov
- Tags: ChatGPT News, Latest AI News

OpenAI has unveiled the o1 series of AI models—**o1-preview** and **o1-mini**—designed to enhance reasoning in complex tasks across science, coding, and mathematics. These models allocate more computational time to "think" before responding, significantly improving performance in advanced problem-solving.

> We're releasing a preview of OpenAI o1—a new series of AI models designed to spend more time thinking before they respond.  
>  
> These models can reason through complex tasks and solve harder problems than previous models in science, coding, and math. [https://t.co/peKzzKX1bu](https://t.co/peKzzKX1bu?ref=testingcatalog.com)
> 
> — OpenAI (@OpenAI) [September 12, 2024](https://twitter.com/OpenAI/status/1834278217626317026?ref%5Fsrc=twsrc%5Etfw&ref=testingcatalog.com)

### **Key Features:**

1. **Advanced Reasoning:** Trained with reinforcement learning focused on complex reasoning, the o1 models excel in solving challenging problems that previous models struggled with.
2. **Benchmark Achievements:**
  1. **Science Disciplines:** Performance comparable to PhD students in physics, chemistry, and biology.
  2. **International Mathematics Olympiad:** Achieved **83% accuracy**, a substantial increase from GPT-4o's 13%.
  3. **Coding Competitions:** Ranked in the **89th percentile** on Codeforces, indicating strong coding proficiency.

![ChatGPT](https://storage.ghost.io/c/2a/1b/2a1b1782-8506-4d7d-bf53-ad3fb52e2a0f/content/images/2024/09/screenshot-chatgpt_com-2024_09_14-21_08_26.jpeg)

### **Enhanced Safety Measures:**

The o1 models incorporate a new safety training approach, utilizing their reasoning abilities to adhere strictly to safety and alignment guidelines. They demonstrate increased resistance to "jailbreaking," with **o1-preview** scoring **84 out of 100** in safety tests, compared to GPT-4o's score of 22.

### **Model Variants:**

1. **o1-preview:** The larger model with robust reasoning capabilities and extensive world knowledge.
2. **o1-mini:** A smaller, faster, and more cost-effective version, particularly effective in coding and math tasks, and **80% cheaper** than o1-preview.

### **Availability:**

Starting **September 12, 2024**, the o1 models are accessible to ChatGPT Plus and Team users, with plans to extend access to ChatGPT Enterprise and Edu users the following week. Developers on API usage tier 5 can begin prototyping with both models. Initial weekly rate limits are set at 30 messages for o1-preview and 50 for o1-mini, with plans to increase after further testing.