Fireworks AI model product
Ember 1
Ember 1 is a Fireworks Research model built on Moonshot Kimi K3 that uses shorter reasoning traces while matching K3-max quality on Fireworks' evaluations.
Updated Oct 23, 2026. Default version: Ember-1
LLMBoard Score71.1Ember-1
Coverage20%4 benchmark families
Context window1MTokens
Official input price$3Fireworks AI API
Ember 1 Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
Ember 1 Benchmark Results
Benchmark scores for Ember-1.
Sort by
Benchmark | Score | Rank | Participants | Percentile | Evidence | Evaluated |
|---|
| BenchmarkSWE-Bench Verified | Score92.20% | Rank03 | Participants120 | Percentile98.32% | EvidenceC | Evaluated |
| BenchmarkTau2 Airline | Score66.00% | Rank08 | Participants26 | Percentile72.00% | EvidenceC | Evaluated |
| BenchmarkDeepSWE 1.1 | Score75.20% | Rank09 | Participants51 | Percentile84.00% | EvidenceC | Evaluated |
| BenchmarkTerminal-Bench 2.1 | Score82.00% | Rank22 | Participants48 | Percentile55.32% | EvidenceC | Evaluated |
Ember 1 Arena Results
Preference and agent-evaluation results for the default version.
No Arena results
The default version does not have a matching Arena result yet.
Ember 1 Pricing
Official vendor API pricing appears first, followed by individual provider offers.
- Official API
- $3 input, $15 output per 1M
- Official provider
- Fireworks AI
- Lowest third-party
- From $3 input, $15 output per 1M via Kilo Gateway
- Tracked offerings
- 6
Sort by
Provider | Provider model ID | Region | Input / 1M | Output / 1M | Context | Updated |
|---|
| ProviderKilo Gateway | Provider model IDfireworks/ember-1 | Regionglobal | Input / 1M$3 | Output / 1M$15 | Context1M | Updated |
| ProviderOpenRouter | Provider model IDfireworks/ember-1 | Regionglobal | Input / 1M$3 | Output / 1M$15 | Context1M | Updated |
| ProviderFireworks AI | Provider model IDaccounts/fireworks/models/ember-1 | Regionglobal | Input / 1M$3 | Output / 1M$15 | Context1M | Updated |
| ProviderVercel AI Gateway | Provider model IDfireworks/ember-1 | Regionglobal | Input / 1M$3 | Output / 1M$15 | Context1M | Updated |
| ProviderNanoGPT | Provider model IDfireworks/ember-1 | Regionglobal | Input / 1M$3 | Output / 1M$15 | Context1M | Updated |
| ProviderCloudflare AI Gateway | Provider model IDfireworks/ember-1 | Regionglobal | Input / 1M$3 | Output / 1M$15 | Context1M | Updated |
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
Ember 1 Runtime Performance
Provider-specific output speed and catalog latency for Ember-1. Runtime does not affect the capability score.
No runtime data
No provider-specific speed or latency record is linked to the default version yet.
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
Ember 1 Specifications
Technical details for the model's default version.
- Version
- Ember-1
- Released
- Sep 23, 2026
- Knowledge cutoff
- Unknown
- Parameters
- 2.8T
- Context window
- 1M
- Max output
- N/A
- Inputs
- text
- Outputs
- text
- Open weights
- No
- License
- Proprietary
Ember 1 Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
Sort by
Version | Released | LLMBoard | Parameters | Context | Max output | Open weights | License |
|---|
| VersionEmber-1 | Released | LLMBoard71.07 | Parameters2.8T | Context1M | Max outputN/A | Open weightsNo | LicenseProprietary |
Models similar to Ember 1
Recommendations prioritize the same model type and family, then the closest LLMBoard score.
OP
GPT-5.2-Pro
OpenAI
AC
Qwen3.7 Plus
Alibaba Cloud / Qwen Team
ME
Muse Spark
Meta
OP
GPT-6-Luna
OpenAI
AN
Claude Sonnet 4.6
Anthropic
TE
Hy3
Tencent
What is Ember 1?
Key information about Ember 1 and its available data.
78T parameters, a 1040k context window, and function calling. It is available as a Research Preview on Fireworks Serverless under accounts/fireworks/models/ember-1.
Data as of 2026-10-22.
FAQ
Common questions about Ember 1.
When was Ember 1 released?
Ember 1's default version was released on Sep 23, 2026.
How much does Ember 1 cost?
Ember 1's official API price is $3 per million input tokens and $15 per million output tokens via Fireworks AI. The lowest tracked third-party offer starts at $3 input and $15 output via Kilo Gateway.
Who created Ember 1?
Ember 1 was created by Fireworks AI.
What is the context window for Ember 1?
The default version has a 1M token context window.
Is Ember 1 open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer Ember 1?
6 provider offerings are linked to the default version.