Fireworks AI: Ember-1
fireworks/ember-1
Try Ember-1 for free in your browser, and add it to your app for free with Puter.js AI API.
Try it free Add to your app// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms", {
model: "fireworks/ember-1"
}).then(response => {
document.body.innerHTML = response.message.content;
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.chat("Explain quantum computing in simple terms", {
model: "fireworks/ember-1"
}).then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
Model Card
Ember-1 is a coding and agentic model from Fireworks Research, built on Moonshot AI's Kimi K3.
Fireworks trained it to produce shorter reasoning traces while holding output quality steady, cutting reasoning tokens by roughly 40% compared to Kimi K3. On Fireworks' own benchmarks, Ember-1 scores 82.0% on Terminal-Bench 2.1 versus 80.9% for Kimi K3 Max while using 51.9% fewer tokens, and 75.2% on DeepSWE 1.1 versus 66.4%. It trails Kimi K3 Max slightly on SWE-bench Verified, 92.2% versus 93.2%. These figures are vendor-reported, not independently verified.
It takes text and image input, supports tool calling, and offers a 1,048,576-token context window. Fireworks lists it as a research preview on its serverless platform, with a two-week access window and permanence contingent on demand.
It targets developers running coding agents and multi-turn tool-use workflows where reasoning token costs compound.
Context Window 1M
tokens
Max Output 944K
tokens
Input Cost $3
per million tokens
Output Cost $15
per million tokens
Tool Use Yes
Release Date Sep 24, 2026
Try Ember-1 for free
Try Ember-1 instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.
Frequently Asked Questions
You can access Ember-1 by Fireworks AI through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.
Ember-1 is free to try with a Puter account. Every account includes a free AI allowance, and you can chat with it in the playground on this page. You can upgrade your account anytime for a larger allowance.
Ember-1 is free to integrate using the Puter.js AI API. With the User-Pays Model, you can add AI to your app for $0, since users cover their own AI usage through their Puter account.
| Price per 1M tokens | |
|---|---|
| Input | $3 |
| Output | $15 |
Ember-1 was created by Fireworks AI and released on Sep 24, 2026.
Ember-1 supports a context window of 1M tokens. For reference, that is roughly equivalent to 2,097 pages of text.
Ember-1 can generate up to 944K tokens in a single response.
Yes, Ember-1 supports tool use (function calling), allowing it to interact with external tools, APIs, and data sources as part of its response flow.
Yes — the Ember-1 API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Add Ember-1 to your app for free
Developers can integrate Ember-1 for free using the Puter.js AI API.
With the User-Pays Model, each user covers their own AI usage instead of the developer.