Muse Spark
FrontierMeta•Released on 2026-04-15
Meta Superintelligence Labs' first model, released April 2026. Marks Meta's controversial departure from Llama's open-source legacy — Muse Spark is proprietary. Achieves Llama-4-Maverick-level reasoning with over an order of magnitude less compute, using a 'thought compression' technique that penalizes excessive thinking time.
84
Overall Score
Core Specs
0K
Context Window
0K
Max Output
✓
Reasoning
✗
Open Source
Multimodal Support
textimage
Scenario Scores
User Feedback Highlights
Based on community feedback. Hover to see original reviews.
− Proprietary — no open weights (departure from Llama legacy)+ Backed by Meta Superintelligence Labs− Benchmarks not yet independently verified+ Re-entry to Top 5 global models− Pricing and availability still limited+ Novel 'thought compression' training technique+ 10x+ more compute-efficient than Llama 4 Maverick− Limited technical details at launch
Sentiment:👍 45%😐 35%👎 20%
Pros & Cons
Pros
- +10x+ more compute-efficient than Llama 4 Maverick
- +Novel 'thought compression' training technique
- +Re-entry to Top 5 global models
- +Backed by Meta Superintelligence Labs
Cons
- −Proprietary — no open weights (departure from Llama legacy)
- −Limited technical details at launch
- −Benchmarks not yet independently verified
- −Pricing and availability still limited
Reliability
Incidents (30d)0
Pricing
Input (per 1M tokens)$0.00
Output (per 1M tokens)$0.00
Updated on 2026-04-21
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