Ember-1
Ember-1 is a specialized reasoning model from Fireworks Research, built on [Kimi K3](https://openrouter.ai/moonshotai/kimi-k3).
Model by Fireworks
Install
Pick your client. Read the repository before you give any tool access to your data.
{
"model": "fireworks/ember-1",
"baseURL": "https://openrouter.ai/api/v1"
}OpenAI-compatible API: point any OpenAI SDK at the base URL and use this model id.
Settings it needs
OPENROUTER_API_KEYrequiredsecret
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About
Use cases: model-inference
Reviews
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Price and limits
| Variant | Input $/M tokens | Output $/M tokens | Cached input $/M |
|---|---|---|---|
| Standard | $3 | $15 | $0.3 |
Price as of Oct 26, 2026 from OpenRouter. Prices change often; check before you rely on one.
- Provider
- Fireworks
- Model id
fireworks/ember-1- Context window
- 1,048,576 tokens (1M)
- Max output
- 943,718 tokens
- Input
- text, image
- Output
- text
- Tool calling
- Yes
- Structured outputs
- Yes
- Reasoning
- Yes
- Weights
- Closed
- Released
- Sep 24, 2026
Details
- Auth
- API key
- License
- Proprietary
- First seen
- Oct 24, 2026
- Last checked
- Oct 26, 2026
- Source
- OpenRouter
Cite this page
Ember-1: price, context window, tool use. Agent Mart. https://agentmart.dev/models/fireworks-ember-1 (last updated 2026-10-26)