Analysis: Muse Spark Open price, context, and weight downloads
OpenRouter listed Muse Spark Open on 2026-10-15 at $1.25 in and $4.25 out per million tokens, with a 1,048,576 context. Hub downloads were 2,592 and 8,776.
You are choosing whether to call Muse Spark Open on OpenRouter or download the weights from Hugging Face. The figures below were read on 2026-10-21 from the public models list and the Hub search API.
The OpenRouter id is meta/muse-spark-open (display name Meta: Muse Spark Open). created is 1792087069, that is 2026-10-15 17:57 UTC. The official weight repo was created on 2026-09-15. This page lines up OpenRouter price and context with Hub downloads. Quality wording in the listing has no score attached, so the table leaves it out.
Price and context on OpenRouter
context_length is 1,048,576. pricing.prompt is 0.00000125 USD per token and pricing.completion is 0.00000425 USD per token. Times 1,000,000, input is $1.25 and output is $4.25. input_cache_read is 0.00000015, or $0.15 per million tokens. max_completion_tokens is 943,718, shorter than the full context. architecture is text+image+file+audio+video→text. is_moderated is false. Both Hub repos below list pipeline_tag image-text-to-text.
| Source | Identifier | Created | Figure on 2026-10-21 |
|---|---|---|---|
| OpenRouter API | meta/muse-spark-open | 2026-10-15 | 1,048,576 context · $1.25 in · $4.25 out / 1,000,000 tokens |
| Hugging Face official weights | meta-models/Muse-Spark-Open-816B-A42B | 2026-09-15 | 2,592 downloads · 612 likes |
| Hugging Face GGUF (Unsloth) | unsloth/Muse-Spark-Open-816B-A42B-GGUF | 2026-09-19 | 8,776 downloads · 63 likes |
On the snapshot day this API row was six days old (created 2026-10-15). The weight repo has been public since 2026-09-15, and the Unsloth GGUF repo since 2026-09-19. Downloads were still 2,592 and 8,776. Likes were 612 on the official repo and 63 on the GGUF repo. The same search returns other community quantizations; this table leaves them unsummed. A download count is a Hub counter.
How to re-read the two catalogs
- 1
Find the OpenRouter row
Open https://openrouter.ai/api/v1/models and locate id
meta/muse-spark-open. Copy context_length, pricing.prompt, pricing.completion, pricing.input_cache_read, and created. - 2
Scale USD per token to one million
0.00000125 times 1,000,000 is $1.25 per million tokens, which is a different unit from $1.25 per token. 0.00000425 becomes $4.25. 0.00000015 becomes $0.15 for a cache read.
- 3
Read two Hub repos separately
Open https://huggingface.co/api/models?search=Muse-Spark-Open . Record downloads, likes, and createdAt for meta-models/Muse-Spark-Open-816B-A42B and for unsloth/Muse-Spark-Open-816B-A42B-GGUF. The GGUF repo is a community upload. 816B-A42B is the repo name, not a parameter count measured here.
- 4
Compare created dates before calling it one release
Official weights: 2026-09-15. GGUF: 2026-09-19. OpenRouter created: 2026-10-15. The hosted route is a new row from the past week. The Hub files are older, and on 2026-10-21 their download counts were still in the thousands.
What the two clocks show
The API row is the new object
created is 2026-10-15, six days before the 2026-10-21 snapshot. The weight files were already on the Hub in mid-September.
Hub downloads are still small
The official repo shows 2,592 downloads and 612 likes. The Unsloth GGUF repo shows 8,776 downloads and 63 likes. Likes and downloads do not rank the repos the same way.
Price and downloads answer different questions
$1.25 / $4.25 per million tokens is the hosted rate. These two Hub rows do not list an inference price.
To spread these figures on one shared page, open a browser board at wbstorm. Room setup is in create or join a room.
Fields copied from the two APIs
# fetched 2026-10-21
# https://openrouter.ai/api/v1/models
# id: meta/muse-spark-open
# name: Meta: Muse Spark Open
# created: 1792087069 = 2026-10-15T17:57:49Z
# context_length: 1048576
# pricing.prompt: 0.00000125 USD/token = 1.25 USD / 1000000 tokens
# pricing.completion: 0.00000425 USD/token = 4.25 USD / 1000000 tokens
# pricing.input_cache_read: 0.00000015 USD/token = 0.15 USD / 1000000 tokens
# max_completion_tokens: 943718
# is_moderated: false
# modality: text+image+file+audio+video->text
# https://huggingface.co/api/models?search=Muse-Spark-Open
# meta-models/Muse-Spark-Open-816B-A42B downloads=2592 likes=612 createdAt=2026-09-15
# unsloth/Muse-Spark-Open-816B-A42B-GGUF downloads=8776 likes=63 createdAt=2026-09-19Which figures does this page line up?
The OpenRouter price per million tokens, the 1,048,576 context length, and the download and like counts on two Hugging Face repos, as fetched on 2026-10-21.
Did the API row and the weights appear on the same day?
The official Hub createdAt is 2026-09-15. The Unsloth GGUF repo is 2026-09-19. OpenRouter created is unix 1792087069, which is 2026-10-15.
How do you turn the API price into a per-million figure?
pricing.prompt and pricing.completion are USD per token. Multiply by 1,000,000. 0.00000125 becomes $1.25 and 0.00000425 becomes $4.25. A cache read at 0.00000015 becomes $0.15 per million tokens.
What do a few thousand downloads show?
On 2026-10-21 the public counters on these two repos were still in the thousands. Other mirrors appear in the same search and are not summed here. The counters describe download scale on that day.