Qwen3.8-27B-iMatrix-NVFP4-MTP-GGUF vs Muse-Spark-Open-816B-A42B

Specs, VRAM requirements and download trends — updated 24 October 2026.

cdiamond · A · Open weights

Params

—

Context

—

30d

2.4 M

apache-2.0 · commercial OK

meta-models · B · Open weights

Params

822.0 B

Context

—

30d

5 K

Specification comparison

Differences are highlighted; identical values are muted.

Specification	Qwen3.8-27B-iMatrix-NVFP4-MTP-GGUF	Muse-Spark-Open-816B-A42B
Deployment	Open weights	Open weights · also via API
Parameters	—	822.0 B
Architecture	—	MuseSparkForConditionalGeneration
Context length	—	1,048,576
Licence	apache-2.0	other
Commercial use	Allowed	Unknown
Languages	—	1
Downloads 30d	2,369,313	5,196
Downloads all time	7.5 M	5 K
Quantizations on the Hub	GGUF	SAFETENSORS
Gated	No	Yes — accept licence
First seen on the Hub	2026-08-17	2026-09-15
API input price / 1M tokens	not on OpenRouter	$1.25
API output price / 1M tokens	not on OpenRouter	$4.25
Est. cost per 1M input + 1M output tokens	not on OpenRouter	$5.50
Cached input / 1M tokens	not on OpenRouter	$0.15
AA Intelligence Index	not on OpenRouter	—
AA Coding Index	not on OpenRouter	—
AA Agentic Index	not on OpenRouter	—
Max output tokens	not on OpenRouter	943,718
API providers	not on OpenRouter	6
Tool calling	not on OpenRouter	Yes
Reasoning mode	not on OpenRouter	Yes

Estimated cost of 1M input + 1M output tokens via OpenRouter

Muse-Spark-Open-816B-A42B $5.50

Daily snapshots, last 53 days (2 Sep – 24 Oct)

5.0 M2 K

Qwen3.8-27B-iMatrix-NVFP4-MTP-GGUF Muse-Spark-Open-816B-A42B

On RTX 4090 · 24 GB · 8K context unless noted

Muse-Spark-Open-816B-A42B · fp16 1,932.6 GB / 24 GB

❌ Won’t fit