Fireworks: Ember-1

Ember-1 is a specialized reasoning model from Fireworks Research, built on Kimi K3.

Context
1.0M
Max output
944K
Input price
$3/1M tokens
Output price
$15/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming

Details

Model IDfireworks/ember-1
Provider OpenRouter
Creator Fireworks AI
Family—
License—
Status—
Type—
Input modalitiestext, image
Output modalitiestext
Open weight—
Parameters—
Architecture—
Context window1.0M tokens
Max input—
Max output944K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$3
Output
$15
Cache write
—
Cache read
$0.3
Batch in
—
Batch out
—

API

GET/v1/models/openrouter/fireworks/ember-1

Fireworks: Ember-1

fireworks/ember-1

Ember-1 is a specialized reasoning model from Fireworks Research, built on Kimi K3.

Changes · 2 entries
fireworks/ember-1createca7a400Nov 2, 2026, 03:02 AM
fireworks/ember-1create118451aSep 24, 2026, 07:08 AM