Ember-1 vs Grok-3
Ember-1 leads the LLM Stats Score 43.1 to 30.4. Ember-1 and Grok-3 cost the same.
Fireworks AI · xAI · Updated for 2026
Which is better?
Ember-1 leads the overall LLM Stats Score 43.1 to 30.4, ranking #51 overall.
Ember-1 also accepts a larger context window (1,040,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Ember-1
- overall performance matters — it scores 43.1 and ranks #51 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you process long inputs — it offers a 1,040,000 token context window
- you want the most recent training data — it shipped Sep 2026
Choose Grok-3
- you want predictable pricing at $3.00/M input and $15.00/M output
At a glance
The differences that matter most.
Individual benchmarks
4 reported for Ember-1 · 5 for Grok-3
Ember-1 and Grok-3don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Ember-1 ($3.00/1M tokens) costs the same as Grok-3 ($3.00/1M tokens).
For output processing, Ember-1 ($15.00/1M tokens) costs the same as Grok-3 ($15.00/1M tokens).
In conclusion, Ember-1 and Grok-3 cost the same.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Ember-1 accepts 1,040,000 input tokens compared to Grok-3's 128,000 tokens. Only Grok-3 specifies output context (8,000 tokens).
Input capabilities
Documented input modalities across available providers
Grok-3 supports multimodal inputs, whereas Ember-1 does not.
Grok-3 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Ember-1
Grok-3
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Ember-1 was released on 2026-09-23, while Grok-3 was released on 2025-02-17.
Ember-1 is 19 months newer than Grok-3.
Sep 23, 2026
2 weeks ago
1.6yr newerFeb 17, 2025
1.6 years ago
Knowledge Cutoff
When training data ends
Grok-3 has a documented knowledge cutoff of 2024-11-17, while Ember-1's cutoff date is not specified.
We can confirm Grok-3's training data extends to 2024-11-17, but cannot make a direct comparison without Ember-1's cutoff date.
—
Nov 2024
Provider Availability
Ember-1 is available from Fireworks. Grok-3 is available from xAI.
Ember-1
Grok-3
Outputs Comparison
Judge for yourself.
Run your own prompts against Ember-1 and Grok-3 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Ember-1 vs Grok-3.