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GPT-5.1 — Free AI Chat on Rewind.ai
Chat with GPT-5.1 for free — no signup, no credit card. OpenAI's GPT-5.1 runs in your browser on Rewind.ai, with pay-as-you-go tokens and full API access.
What is GPT-5.1?
GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning.
How does GPT-5.1 work?
Type your message in the box above and GPT-5.1 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 GPT-5.1 and other models at any time from the picker at the top.
Is GPT-5.1 free?
GPT-5.1 is a premium model: it runs on tokens from a token pack or paid plan (from $5). The free daily tokens (2,500 a day, 5,000 with a free account) cover Rewind's free models, so you can try the site at no cost.