MODEL PROOF
Muse Spark 1.3 Contributor
NO LMARENA GENERAL SCORE
No LMArena general score is attached to this listing.
- Independent LMArena score
- No LMArena general score
- Context window
- 1.05M
- Maximum output
- 943.72K
- Input modalities
- text, image, video, file, audio
- Output modalities
- text
- Published input price
- $0.100 / 1M tokens
- Published output price
- $0.200 / 1M tokens
- Pricing kind
- fixed
Inspect complete billing conditions and endpoint terms below.
Price from Meta: the cheapest offer that is serving, at standard delivery, with at least 90% of the reference context and at the maker’s precision or better, at its standard rate.
Every price dimension · USD per million tokens
| Input | $0.100/M |
|---|---|
| Output | $0.200/M |
| Cached input | $0.0020/M |
| Cache write | Unknown/M |
| Cache write 1h | Unknown/M |
| Reasoning | Unknown/M |
| Web search | $0.0025/call |
Who sells it
The same weights, different shops. Cheapest is not like-for-like when serving precision differs.
1 provider offers · rates, limits and conditions
Rates are USD per million tokens. Endpoint terms can differ even when the quoted price and precision match. A listed parameter is a provider declaration, not a task-success test.
| Seller | Input | Output | Precision | Uptime (1d) |
|---|---|---|---|---|
| Metameta Endpoint terms
| $0.100 | $0.200 | undeclared | 100.00% |
Independent scores
No independent benchmark has measured this model. Unrated is not a score of zero.
Capability
| Context window | 1M |
|---|---|
| Max output | 943K |
| Input modes | text, image, video, file, audio |
| Tool use | yes |
| Reasoning | always on |
| Open weights | Unknown |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-11-05 |
| Held | Input types kept at the published record of 2026-10-06 while a newer upstream value is reviewed. |
| Quality data | unrated |
Muse Spark 1.3 Contributor is the cost-efficient contributor tier of Meta’s multimodal reasoning model for experimentation, learning, and early-stage agentic, multi-agent, and coding workflows. It is designed to track information...
Questions this page answers
What does Muse Spark 1.3 Contributor cost?
$0.100/M in, $0.200/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.
Does Muse Spark 1.3 Contributor have an independent quality score?
Muse Spark 1.3 Contributor has no LMArena general score in this catalogue. Unrated is not a score of zero.
What beats Muse Spark 1.3 Contributor?
Muse Spark 1.3 Contributor has no LMArena general score. Unrated is not a score of zero.
Does this page use Artificial Analysis scores for Muse Spark 1.3 Contributor?
No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated.
Does a missing score mean Muse Spark 1.3 Contributor scored zero?
Unrated is not a score of zero.
MODEL MONUMENT
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Badge
The verdict as one SVG, for a README or a docs page. It states this model's dominance status at the balanced workload on the LMArena lens, with the date it was computed, and it is rebuilt with the catalogue — so it changes when the verdict changes, including to one you would rather it did not.
[](https://undominated.ai/models/meta__muse-spark-1.3-contributor/)<a href="https://undominated.ai/models/meta__muse-spark-1.3-contributor/"><img src="https://undominated.ai/badge/meta__muse-spark-1.3-contributor.svg" alt="Muse Spark 1.3 Contributor — Undominated.ai dominance verdict" height="36"></a>Direct file: https://undominated.ai/badge/meta__muse-spark-1.3-contributor.svg — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never
older than the last deploy.
