Jamba 1.5 Large vs Muse Ember
Muse Ember leads the LLM Stats Score 45.9 to 0.4. Muse Ember is 17.5x cheaper per token.
AI21 Labs · Meta · Updated for 2026
Which is better?
Muse Ember leads the overall LLM Stats Score 45.9 to 0.4, ranking #47 overall.
On price, Muse Ember is roughly 17.5x 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 Jamba 1.5 Large
- you need open weights you can self-host or fine-tune
Choose Muse Ember
- overall performance matters — it scores 45.9 and ranks #47 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- cost matters — it's about 17.5x 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
At a glance
The differences that matter most.
Individual benchmarks
8 reported for Jamba 1.5 Large · 6 for Muse Ember
Jamba 1.5 Large 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
Pricing Analysis
Price comparison per million tokens
For input processing, Jamba 1.5 Large ($2.00/1M tokens) is 20.0x more expensive than Muse Ember ($0.10/1M tokens).
For output processing, Jamba 1.5 Large ($8.00/1M tokens) is 16.0x more expensive than Muse Ember ($0.50/1M tokens).
In conclusion, Jamba 1.5 Large 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 Jamba 1.5 Large's 256,000 tokens. Muse Ember can generate longer responses up to 524,288 tokens, while Jamba 1.5 Large is limited to 256,000 tokens.
Input capabilities
Documented input modalities across available providers
Muse Ember supports multimodal inputs, whereas Jamba 1.5 Large does not.
Muse Ember can handle both text and other forms of data like images, making it suitable for multimodal applications.
Jamba 1.5 Large
Muse Ember
License
Usage and distribution terms
Jamba 1.5 Large is licensed under Jamba Open Model License, while Muse Ember uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Jamba Open Model License
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Jamba 1.5 Large was released on 2024-08-22, while Muse Ember was released on 2026-11-09.
Muse Ember is 27 months newer than Jamba 1.5 Large.
Aug 22, 2024
2.2 years ago
Nov 9, 2026
3 days ago
2.2yr newerKnowledge Cutoff
When training data ends
Jamba 1.5 Large has a documented knowledge cutoff of 2024-03-05, while Muse Ember's cutoff date is not specified.
We can confirm Jamba 1.5 Large's training data extends to 2024-03-05, but cannot make a direct comparison without Muse Ember's cutoff date.
Mar 2024
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Provider Availability
Jamba 1.5 Large is available from Bedrock, Google. Muse Ember is available from Meta Model API.
Jamba 1.5 Large
Muse Ember
Outputs Comparison
Judge for yourself.
Run your own prompts against Jamba 1.5 Large and Muse Ember side-by-side, then vote on the output you prefer.
FAQ
Common questions about Jamba 1.5 Large vs Muse Ember.