Ember-1 — Free AI Chat on Rewind.ai

Chat with Ember-1 for free — no signup, no credit card. Fireworks's Ember-1 runs in your browser on Rewind.ai, with pay-as-you-go tokens and full API access.

What is Ember-1?

Ember-1 is a specialized reasoning model from Fireworks Research, built on [Kimi K3](https://openrouter.ai/moonshotai/kimi-k3). It is designed to make every token go further: it produces shorter reasoning traces, using roughly 40%.

How does Ember-1 work?

Type your message in the box above and Ember-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 Ember-1 and other models at any time from the picker at the top.

Is Ember-1 free?

Ember-1 is pay-as-you-go at $3.00/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.