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Step 5 PreviewE
Ember-1
Ember-1 is a proprietary model from Fireworks AI, released Sep 24, 2026. Its best result is #19 of 115 on Vibe Code Bench with 83.87%. It costs $3 per million input tokens and $15 per million output tokens, with a 1M-token context window.
- Developer
- Fireworks AI
- Released
- Sep 24, 2026
- Context window
- 1M
- Price in / out, per 1M tokens
- $3 / $15
- Weights
- Proprietary
- Inputs
- Text, Images
- Reasoning
- Yes
- Tool use
- Yes
Benchmarks
| Benchmark | Score bar | Accuracy | Rank | Cost / test |
|---|---|---|---|---|
| Terminal-Bench 4.0Coding | 20.71% | 29 / 55 | $19.48 | |
| Vibe Code BenchCoding | 83.87% | 19 / 115 | $8.56 | |
| Tax Agent BenchFinance | 31.08% | 26 / 76 | $2.97 | |
| Legal Research BenchLaw | 44.71% | 21 / 85 | $3.67 | |
| Terminal-Bench ScienceReasoning | 5.71% | 24 / 42 | $30.76 |
Vals AI, as of Oct 24, 2026.
Compare Ember-1
Fireworks AI
Questions
Who makes Ember-1?
Ember-1 is made by Fireworks AI.
How much does Ember-1 cost?
$3 per million input tokens and $15 per million output tokens, at its provider’s list price.
What is Ember-1’s context window?
1M tokens (1,048,576).
Is Ember-1 open source?
No. Ember-1 is proprietary and served through its provider’s API.