Laguna XS 2.1 vs Muse Spark Open
Muse Spark Open leads the LLM Stats Score 45.3 to 23.9. Laguna XS 2.1 is 16.0x cheaper per token.
Poolside · Meta · Updated for 2026
Which is better?
Muse Spark Open leads the overall LLM Stats Score 45.3 to 23.9, ranking #42 overall.
On price, Laguna XS 2.1 is roughly 16.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Muse Spark Open 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 Laguna XS 2.1
- cost matters — it's about 16.0x cheaper per token
Choose Muse Spark Open
- overall performance matters — it scores 45.3 and ranks #42 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Oct 2026
At a glance
The differences that matter most.
Individual benchmarks
4 reported for Laguna XS 2.1 · 17 for Muse Spark Open
Laguna XS 2.1 and Muse Spark Opendon'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, Laguna XS 2.1 ($0.10/1M tokens) is 12.5x cheaper than Muse Spark Open ($1.25/1M tokens).
For output processing, Laguna XS 2.1 ($0.20/1M tokens) is 21.3x cheaper than Muse Spark Open ($4.25/1M tokens).
In conclusion, Muse Spark Open is more expensive than Laguna XS 2.1.*
* Using a 3:1 ratio of input to output tokens
Model Size
Parameter count comparison
Muse Spark Open has 783.0B more parameters than Laguna XS 2.1, making it 2372.7% larger.
Context Window
Maximum input and output token capacity
Muse Spark Open accepts 1,048,576 input tokens compared to Laguna XS 2.1's 262,144 tokens. Only Muse Spark Open specifies output context (1,048,576 tokens).
Input capabilities
Documented input modalities across available providers
Muse Spark Open supports multimodal inputs, whereas Laguna XS 2.1 does not.
Muse Spark Open can handle both text and other forms of data like images, making it suitable for multimodal applications.
Laguna XS 2.1
Muse Spark Open
License
Usage and distribution terms
Laguna XS 2.1 is licensed under OpenMDW License v1.1, while Muse Spark Open uses Muse Model License.
License differences may affect how you can use these models in commercial or open-source projects.
OpenMDW License v1.1
Open weights
Muse Model License
Open weights
Release Timeline
When each model was launched
Laguna XS 2.1 was released on 2026-07-02, while Muse Spark Open was released on 2026-10-15.
Muse Spark Open is 4 months newer than Laguna XS 2.1.
Jul 2, 2026
3 months ago
Oct 15, 2026
4 days ago
3mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Laguna XS 2.1 is available from Poolside. Muse Spark Open is available from Together.
Laguna XS 2.1
Muse Spark Open
Outputs Comparison
Judge for yourself.
Run your own prompts against Laguna XS 2.1 and Muse Spark Open side-by-side, then vote on the output you prefer.
FAQ
Common questions about Laguna XS 2.1 vs Muse Spark Open.