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 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.