Ember-1

Ember-1 is a reasoning model from Fireworks Research built on Kimi K3, designed to produce efficient reasoning traces with a 1M token context window.

Strengths

Generates shorter reasoning traces than comparable models, using roughly 40% fewer tokens while maintaining solution quality.

Best for

Complex reasoning tasks where token efficiency matters, especially with large documents or extended context requirements.

Limitations

As a specialized reasoning model, it is not a general-purpose replacement for broader instruction-following or creative tasks.