Chat01.ai
Last Updated on: Dec 12, 2025
Chat01.ai
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What is Chat01.ai?
OpenAI01.net is a third-party, browser-based chat platform that lets you use OpenAI’s o1 family of advanced reasoning models for free, without needing your own API key or paid account. Branded as Chat01.ai in some places, it focuses on giving users generous access to o1-preview and o1-mini through a simple chat interface so they can tackle complex math, coding, science, and problem-solving tasks. The site often features public question-and-answer threads, allowing you to study other users’ prompts and responses to improve your own prompting skills. It acts as an accessible front-end to powerful OpenAI models, but is not officially operated by OpenAI.
Who can use Chat01.ai & how?
  • Students & Learners: Practice math, science, and exam-style reasoning with step-by-step answers.
  • Developers & Coders: Get help with debugging, algorithms, and code generation using o1’s reasoning.
  • Researchers & Tinkerers: Experiment with complex prompts and workflows without metered API billing.
  • Content Creators: Generate clear explanations, lesson content, and structured outlines.
  • Casual Users: Chat with an advanced AI in a clean UI without setup or configuration.

How to Use OpenAI01.net?
  • Open the Site: Visit openai01.net in a modern web browser.
  • Start a Conversation: Type your question, prompt, or task into the chat box.
  • Ask Reasoning-Heavy Questions: Use multi-step tasks in math, coding, or logic to see detailed reasoning.
  • Explore Shared Chats: Browse public Q&A threads to discover useful prompts and responses.
What's so unique or special about Chat01.ai?
  • Free Access to o1 Models: Lets you try OpenAI’s reasoning-focused models without an API key.
  • High or Unlimited Usage: Markets itself as offering generous or unlimited chatting versus strict rate limits.
  • Public Q&A Library: Showcases real user prompts and answers as a learning resource.
  • Reasoning-Centric Experience: Built specifically around deep reasoning rather than just casual chit-chat.
  • Low Friction Onboarding: No complex signup or billing configuration needed to get started.
Things We Like
  • Makes o1-style reasoning accessible to people without developer accounts.
  • Great sandbox for experimenting with complex prompts and workflows.
  • Public conversations help users learn better prompting techniques.
  • Simple interface works well even for non-technical users.
Things We Don't Like
  • Not an official OpenAI product, so reliability can change over time.
  • Privacy and data handling depend on a third-party operator.
  • Focused mainly on chat with limited extra tools or integrations.
  • Model quality and limits may shift if upstream APIs or costs change.
Photos & Videos
Screenshot 1
Pricing
Freemium

Free

$ 0.00

2 credits per day
1 question per minute
Continue asking (3 invites to unlock)
Q&A can be hidden (8 invites to unlock)

Starter

$ 9.99

30 credits per day
Unlimited question frequency
Q&A can be hidden
Support for continued asking
Access to o1 vision, o1-pro models

Basic

$ 19.99

100 credits per day
Unlimited question frequency
Q&A can be hidden
Support for continued asking
Access to o1 vision, o1-pro models

Pro

$ 39.99

300 credits per day
Unlimited question frequency
Q&A can be hidden
Support for continued asking
Priority customer support
Access to o1 vision, o1-pro models
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Popular Mention

FAQs

OpenAI01.net is a third-party website offering free chat access to OpenAI’s o1 reasoning models via a hosted interface.
No, it is independent and not owned or operated by OpenAI.
No, you can use the hosted chat without setting up your own OpenAI billing or keys.
You can solve math problems, debug code, explore science questions, and test complex reasoning prompts.
The site advertises generous or unlimited usage, but practical limits may apply based on resources.

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Editorial Note

This page was researched and written by the ATB Editorial Team. Our team researches each AI tool by reviewing its official website, testing features, exploring real use cases, and considering user feedback. Every page is fact-checked and regularly updated to ensure the information stays accurate, neutral, and useful for our readers.

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