MODEL PROOF
Muse Spark 1.3 Contributor
NOT INDEPENDENTLY RATED
No independent LMArena score is published for this model.
- Independent LMArena score
- Not independently rated
- 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
MODEL MONUMENT
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Meta: Muse Spark 1.3 Contributor. Balanced workload. Not independently rated. Evidence as of 19 Sept 2026.
$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. Muse Spark 1.3 Contributor has no independent quality score. Unrated is not a score of zero.
Every price dimension
| Input | $0.100/M |
|---|---|
| Output | $0.200/M |
| Cached input | $0.0020/M |
| Web search | $0.0025/call |
Who sells it
The same weights, different shops. Cheapest is not like-for-like when serving precision differs.
| Seller | Input | Output | Precision | Uptime (1d) |
|---|---|---|---|---|
| Meta | $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 | 1.0M |
|---|---|
| Max output | 944K |
| Input modes | text, image, video, file, audio |
| Tool use | yes |
| Reasoning | always on |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-09-19 |
| 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 independent quality 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 independent quality 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.
Check whether this is still the one to buy
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.
