Compare Ember-1 from Fireworks AI and Kimi K3 from moonshotai on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.


Ember-1 and Kimi K3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Ember-1, from Fireworks AI, has a 1,048,576-token context window and is priced at $3/M tokens input, $15/M tokens output on OpenRouter.
Kimi K3, from moonshotai, has a 1,048,576-token context window and is priced at $0.214/M tokens input, $16/M tokens output on OpenRouter.
| Attribute | Ember-1 | Kimi K3 |
|---|---|---|
| Input price | $3/M tokens | $0.214/M tokens |
| Output price | $15/M tokens | $16/M tokens |
| Context window | 1,048,576 tokens | 1,048,576 tokens |
| Intelligence Index | Not available | 43.6 |
| Coding Index | Not available | 76.2 |
| Agentic Index | Not available | 50.0 |
| Latency (p50) | 0.60 s | 0.64 s |
| Throughput (p50) | 75.0 tok/s | 104.0 tok/s |
Benchmark data updated
Ember-1 and Kimi K3 trade off on price: Ember-1 costs $3/M tokens input and $15/M tokens output, while Kimi K3 costs $0.214/M tokens input and $16/M tokens output, so Kimi K3 is cheaper for input tokens and Ember-1 is cheaper for output tokens.
Ember-1 and Kimi K3 have the same context window of 1,048,576 tokens.
Kimi K3 is faster on OpenRouter, generating a median 104.0 tokens per second compared with 75.0 tokens per second for Ember-1.