Model / fireworks

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%...

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Know · from the live catalog

Model id: fireworks/ember-1
Maker: fireworks
Context window: 1M tokens
Input price: $3.00 / 1M tokens
Output price: $15.00 / 1M tokens
Input types: text, image
Output types: text
Tool calling: supported
Reasoning: supported
Listed: 2026-09-24

Verify · per provider

Preview · not live

Provider bond

10,000 USDG required before live traffic

Quality canaries

Weights fingerprint, exact-answer set, empty-reply rate

Signed receipt

Ed25519 over model, provider, tokens, cost and hashes

TEE attestation

Required on the attested lane only

No provider is bonded yet. These checks show what each call to this model will carry once bonded providers go live.

Route · node

const answer = await client.chat.completions.create({
  model: "fireworks/ember-1",
  messages: [{ role: "user", content: "Hello" }],
});

answer.receipt; // signed by the router once receipts ship

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