Fireworks
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%...
ember-1Pricing
~15%- Input
- $2.55 / 1,000,000 tokens
- Output
- $12.75 / 1,000,000 tokens
- Cache read
- $0.255 / 1,000,000 tokens
- Cache write
- $2.55 / 1,000,000 tokens
Discount history
Model details
- Input
- text, image
- Output
- text
- Context window
- 1,048,576 tokens
- Maximum output
- 524,288 tokens
- Availability
- Uncapped capacity
- Updated
- 11/9/2026, 2:06:27 AM UTC
Capacity is reserved when your request is accepted.
Capabilities
ChatStreamingVisionTool callingReasoningJSON mode
Supported parameters
frequency_penaltyinclude_reasoninglogit_biaslogprobsmax_tokenspresence_penaltyreasoningreasoning_effortrepetition_penaltyresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_logprobstop_p