GPT-6 Astra Pro — Free AI Chat on Rewind.ai
Chat with GPT-6 Astra Pro for free — no signup, no credit card. OpenAI's GPT-6 Astra Pro runs in your browser on Rewind.ai, with pay-as-you-go tokens and full API access.
What is GPT-6 Astra Pro?
GPT-6 Astra Pro is the same underlying model as [GPT-6 Astra](https://openrouter.ai/openai/gpt-6-astra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode
How does GPT-6 Astra Pro work?
Type your message in the box above and GPT-6 Astra Pro 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-6 Astra Pro and other models at any time from the picker at the top.
Is GPT-6 Astra Pro free?
GPT-6 Astra Pro is pay-as-you-go at $10.00/M input tokens, but you can use it without paying: every visitor gets 2,500 free tokens a day with no sign up, and a free account raises that to 5,000.