Muse Ember vs o4-mini
Muse Ember leads the LLM Stats Score 45.9 to 26.7. Muse Ember is 9.6x cheaper per token.
Meta · OpenAI · Updated for 2026
Which is better?
Muse Ember leads the overall LLM Stats Score 45.9 to 26.7, ranking #47 overall.
On price, Muse Ember is roughly 9.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Muse Ember also accepts a larger context window (1,048,576 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 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
- cost matters — it's about 9.6x cheaper per token
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Nov 2026
Choose o4-mini
- you want predictable pricing at $1.10/M input and $4.40/M output
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
6 reported for Muse Ember · 14 for o4-mini
Muse Ember and o4-minidon'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, Muse Ember ($0.10/1M tokens) is 11.0x cheaper than o4-mini ($1.10/1M tokens).
For output processing, Muse Ember ($0.50/1M tokens) is 8.8x cheaper than o4-mini ($4.40/1M tokens).
In conclusion, o4-mini is more expensive than Muse Ember.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Muse Ember accepts 1,048,576 input tokens compared to o4-mini's 200,000 tokens. Muse Ember can generate longer responses up to 524,288 tokens, while o4-mini is limited to 100,000 tokens.
Input capabilities
Documented input modalities across available providers
Both Muse Ember and o4-mini support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Muse Ember
o4-mini
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
Muse Ember was released on 2026-11-09, while o4-mini was released on 2025-04-16.
Muse Ember is 19 months newer than o4-mini.
Nov 9, 2026
5 days ago
1.6yr newerApr 16, 2025
1.6 years ago
Knowledge Cutoff
When training data ends
o4-mini has a documented knowledge cutoff of 2024-05-31, while Muse Ember's cutoff date is not specified.
We can confirm o4-mini's training data extends to 2024-05-31, but cannot make a direct comparison without Muse Ember's cutoff date.
—
May 2024
Provider Availability
Muse Ember is available from Meta Model API. o4-mini is available from OpenAI.
Muse Ember
o4-mini
Outputs Comparison
Judge for yourself.
Run your own prompts against Muse Ember and o4-mini side-by-side, then vote on the output you prefer.
FAQ
Common questions about Muse Ember vs o4-mini.