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o1 — Free AI Chat on Rewind.ai

Chat with o1 for free — no signup, no credit card. OpenAI's o1 runs in your browser on Rewind.ai, with pay-as-you-go tokens and full API access.

What is o1?

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.

How does o1 work?

Type your message in the box above and o1 replies instantly — no setup required. Your chat history is saved locally in your browser; sign up free to sync it across devices and get an extra 10,000 tokens. You can switch between o1 and other models at any time from the picker at the top.

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