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  1. Home
  2. /
  3. Compare

Ember-1 vs Kimi K3

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.

Favicon for fireworks
Ember-1
Favicon for moonshotai
Kimi K3
Favicon for fireworks
Ember-1
Favicon for moonshotai
Kimi K3

Overview

Ember-1
Author
Fireworks AI
Kimi K3
Author
moonshotai
Ember-1
Context length
1.05Mtokens
Kimi K3
Context length
1.05Mtokens
Ember-1
Reasoning
Kimi K3
Reasoning
Ember-1
Input modalities
Kimi K3
Input modalities
Ember-1
Output modalities
Kimi K3
Output modalities

Ember-1 vs Kimi K3: side-by-side summary

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.

Context window
  • Ember-1: 1,048,576 tokens
  • Kimi K3: 1,048,576 tokens
Price
  • Ember-1: $3/M tokens input, $15/M tokens output
  • Kimi K3: $0.214/M tokens input, $16/M tokens output
Provided by
  • Ember-1: Fireworks AI
  • Kimi K3: moonshotai
  • Ember-1 model details, providers and pricing
  • Kimi K3 model details, providers and pricing

Ember-1 vs Kimi K3 at a glance

Ember-1 vs Kimi K3 comparison
AttributeEmber-1Kimi K3
Input price$3/M tokens$0.214/M tokens
Output price$15/M tokens$16/M tokens
Context window1,048,576 tokens1,048,576 tokens
Intelligence IndexNot available43.6
Coding IndexNot available76.2
Agentic IndexNot available50.0
Latency (p50)0.60 s0.64 s
Throughput (p50)75.0 tok/s104.0 tok/s

Benchmark data updated Oct 24, 2026

Frequently asked questions

Is Ember-1 cheaper than Kimi K3?

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.

Which has the longer context window, Ember-1 or Kimi K3?

Ember-1 and Kimi K3 have the same context window of 1,048,576 tokens.

Which is faster, Ember-1 or Kimi K3?

Kimi K3 is faster on OpenRouter, generating a median 104.0 tokens per second compared with 75.0 tokens per second for Ember-1.