Grok-1.5 vs Muse Ember
Muse Ember leads the LLM Stats Score 45.9 to -3.2.
xAI · Meta · Updated for 2026
Which is better?
Muse Ember leads the overall LLM Stats Score 45.9 to -3.2, ranking #47 overall.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Grok-1.5
- you are already invested in the xAI ecosystem
Choose Muse Ember
- overall performance matters — it scores 45.9 and ranks #47 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you want the most recent training data — it shipped Nov 2026
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
9 reported for Grok-1.5 · 6 for Muse Ember
Grok-1.5 and Muse Emberdon'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
Context Window
Maximum input and output token capacity
Only Muse Ember specifies input context (1,048,576 tokens). Only Muse Ember specifies output context (524,288 tokens).
Input capabilities
Documented input modalities across available providers
Muse Ember supports multimodal inputs, whereas Grok-1.5 does not.
Muse Ember can handle both text and other forms of data like images, making it suitable for multimodal applications.
Grok-1.5
Muse Ember
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
Grok-1.5 was released on 2024-03-28, while Muse Ember was released on 2026-11-09.
Muse Ember is 32 months newer than Grok-1.5.
Mar 28, 2024
2.6 years ago
Nov 9, 2026
3 days ago
2.6yr newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-1.5 and Muse Ember side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-1.5 vs Muse Ember.