GLM-5.3 vs Muse Ember
GLM-5.3 and Muse Ember are closely matched at 49.9 and 45.9 on the LLM Stats Score. Muse Ember is 9.5x cheaper per token.
Zhipu AI · Meta · Updated for 2026
Which is better?
GLM-5.3 and Muse Ember are closely matched on the overall LLM Stats Score at 49.9 and 45.9.
The models split the 2 individual benchmarks reported for both models evenly.
On price, Muse Ember is roughly 9.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GLM-5.3
- you need open weights you can self-host or fine-tune
Choose Muse Ember
- cost matters — it's about 9.5x cheaper per token
- 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
17 reported for GLM-5.3 · 6 for Muse Ember
GLM-5.3 outperforms in 1 benchmarks (Terminal-Bench 4.0), while Muse Ember is better at 1 benchmark (Agents' Last Exam).
Both models are evenly matched across the benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, GLM-5.3 ($1.20/1M tokens) is 12.0x more expensive than Muse Ember ($0.10/1M tokens).
For output processing, GLM-5.3 ($4.00/1M tokens) is 8.0x more expensive than Muse Ember ($0.50/1M tokens).
In conclusion, GLM-5.3 is more expensive than Muse Ember.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Both models have the same input context window of 1,048,576 tokens. GLM-5.3 can generate longer responses up to 1,048,576 tokens, while Muse Ember is limited to 524,288 tokens.
Input capabilities
Documented input modalities across available providers
Muse Ember supports multimodal inputs, whereas GLM-5.3 does not.
Muse Ember can handle both text and other forms of data like images, making it suitable for multimodal applications.
GLM-5.3
Muse Ember
License
Usage and distribution terms
GLM-5.3 is licensed under GLM-5.3 License, while Muse Ember uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
GLM-5.3 License
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
GLM-5.3 was released on 2026-08-14, while Muse Ember was released on 2026-11-09.
Muse Ember is 3 months newer than GLM-5.3.
Aug 14, 2026
3 months ago
Nov 9, 2026
3 days ago
2mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
GLM-5.3 is available from DeepInfra, FriendliAI, Novita, ZAI. Muse Ember is available from Meta Model API.
GLM-5.3
Muse Ember
Outputs Comparison
Judge for yourself.
Run your own prompts against GLM-5.3 and Muse Ember side-by-side, then vote on the output you prefer.
FAQ
Common questions about GLM-5.3 vs Muse Ember.