Measured on Composite
This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.
AI model
Fireworks: Ember-1 (Reasoning)
fireworks/ember-1-reasoning
Fireworks: Ember-1 (Reasoning) is a 1,048,576-token model served on Composite at $0.960 per million tokens in and $15.0 per million tokens out.
Try in PlaygroundSpecifications
| Model ID | fireworks/ember-1-reasoning |
|---|---|
| Provider | cv11 |
| Context window | 1,048,576 tokens |
| Accepts | text, image |
| Returns | text |
| Input price | $0.960 per million tokens |
| Output price | $15.0 per million tokens |
| Prompt caching | Supported — cached input is 60% off the list rate on pay-as-you-go credits |
| Thinking | Optional - see "Fireworks: Ember-1 (Reasoning) (Reasoning)" in the catalog to turn it on by default |
| Moderated | No |
| Cost on a monthly plan | 40 requests of the daily allowance per call |
| Plans that may spend on it | Plus, Pro, Ultra, Enterprise |
| Routing endpoints | 1 |
Pricing
$0.960 per million tokens input · $15.0 per million tokens output
Input and output are charged at the provider’s list price.
On a monthly plan, one call costs 40 requests of that day's allowance. That needs the Plus or Pro or Ultra or Enterprise plan; credits pay for it on any plan.
Provider
cv11
Roleplay fit
This model is available on Composite alongside dozens of others from other labs, so it is easy to compare against similar options.
Context behavior
With a 1,048,576-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.
Cost for regular use
It sits in the mid-range on price, a reasonable pick for regular roleplay use without going for the cheapest option available.
From the provider
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%...
Supplied by cv11, not written by Composite.
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