Muse Glimmer is worth evaluating for local agents because the release includes quantized artifacts and a DFlash drafter alongside the main model. The practical comparison is a complete on-device loop: perception, tool action and recovery.
Publisher-reported, rounded model count; not an exact tensor census. Multimodal components and packaging can change the artifact size.
Evaluate it for
Private on-device agents using text and image inputs on a capable workstation.
Choose another path when
Copying the 17 GB quantized artifact label into an all-in memory budget, or treating a speedup as independent of drafter and workload.
Release context
Why this release matters
The 29.6B dense model uses alternating local and full attention with only two configured KV heads. Meta’s published local-device work makes quantization and speculative decoding part of the release story.
The publisher card gives August 2026, without a day. It is grouped after dated August releases; that placement does not imply it was older.
Start with an exact artifact and an engine that supports it. A configuration below is evidence of a documented path; its device count does not promise a particular throughput or concurrency.
Publisher evaluated setup
1 × GeForce RTX 5090
32 GB per GPU
K-Quant-17GB + DFlash
Publisher’s local-device stack
The card evaluates this device with a quantized drafter. The 17 GB label excludes full runtime state; do not transfer its speedup to another workload.
This is the index’s reported tensor payload, in decimal GB. It excludes file headers and runtime memory. Mixed precision, conversion and host/device placement determine how much GPU memory the loaded model needs.
This estimates inference memory for a hypothetical uniform precision. It is useful for rejecting an allocation that is too small. It does not establish a working deployment or estimate training memory.
Weights only, before requests or runtime buffers. These formats are mathematical scenarios, not claims that each artifact exists.
Representation
Approximate weight floor
What remains to budget
16-bit uniform
59.2 GB
Cache, modality state, workspace, quantization metadata and uneven sharding
8-bit uniform
29.6 GB
Cache, modality state, workspace, quantization metadata and uneven sharding
4-bit uniform
14.8 GB
Cache, modality state, workspace, quantization metadata and uneven sharding
Enter the total across the whole model replica, not per GPU: KV or recurrent cache for all concurrent requests, image/audio state and execution workspace. There is no universal default. We additionally leave 15% of each GPU unused.
59.2 GB for hypothetical weights
Enter a request-and-buffer budget to calculate the aggregate capacity requirement.
A count of one does not prove the engine supports this GPU. A count above one does not prove the model shards evenly or communicates efficiently. Publisher-reported, rounded model count; not an exact tensor census. Multimodal components and packaging can change the artifact size.
Fast drafts help only when verification accepts them.
Acceptance rate and verification cost decide the gain.
Count drafter memory alongside the target model.
Speculative decoding separates a cheaper draft from verification by the target model. Accepted draft tokens advance the output; a rejected continuation must be corrected. The drafter adds its own weights and runtime state.
Mechanism schematic based on the pinned model card and configuration. It explains a design principle; it is not a full implementation graph.
Inspect the full checkpoint specifications
Inspected fields for this exact revision. KV heads alone do not describe latent, hybrid or shared-cache layouts.
Exact checkpoint
meta-models/Muse-Glimmer-30B
Text model type
muse_glimmer_text
Layers
52
Hidden width
6,656
Attention / KV heads
32 / 2
Head dimension
128
Routed / selected experts
Not verified / Not verified
Configured positions
131,072
Documented extension
Not recorded for this checkpoint
Inputs → output
text, image → text
License metadata
apache-2.0
39 sliding attention layers; 13 full attention layers. These counts describe the configured pattern.
Open weights do not imply unrestricted use. Read the applicable license terms linked from the pinned card.
A useful comparison
What else belongs on the shortlist?
These are dense multimodal alternatives; compare tool reliability and complete runtime memory, not just model size.
For a deployment evaluation, record exact weights, precision, engine, device count, interconnect, prompt/output lengths and concurrency. Report task success, errors, TTFT, TPOT and useful throughput together.
Sources and citation
Our assessment is editorial judgment based on the linked architecture and deployment evidence. Model facts are publisher-reported or attributed to runtime maintainers; no independent GPU benchmark was run.
AI Infra Interviews, “Muse-Glimmer-30B: release, architecture and deployment”, checked 2026-09-13. Preserve this date and the exact checkpoint when citing.