MODEL PROOF
Muse Spark 1.2 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
Inspect complete billing conditions and endpoint terms below.
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 | 944K |
| Input modes | text, image, video, file, audio |
| Tool use | yes |
| Reasoning | always on |
| Open weights | no |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-09-23 |
| Quality data | unrated |
| Cross-checked | vendor page |
Our take
editorial — not a measurementTreat the contributor model as its own offer. Compare the current rates with the standard Muse Spark entry, then test quality and service limits under the workload you intend to run. The contributor name does not establish reduced throughput, identical architecture or inherited benchmark results. Evaluate this exact offer before relying on it in production.
Strengths
- Text, image, video, file and audio input are listed
- Cached-input pricing is recorded for this exact row
Weaknesses
- Quality must be evaluated rather than inherited from a related name
- Confirm throughput, priority and service terms with the actual seller
Reach for it when
- Controlled multimodal evaluations
- Cache-heavy workload comparisons with measured reuse
Avoid it if
- Production depends on undocumented service guarantees
- You have not compared this offer’s results with the alternatives
Sources: openrouter.ai
Muse Spark 1.2 contributor tier is a reasoning model from Meta designed for developers who want to start building at an even lower cost. It’s meaningfully cheaper than Muse Spark...
Questions this page answers
What does Muse Spark 1.2 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 1.2 Contributor have an independent quality score?
Muse Spark 1.2 Contributor has no independent quality score in this catalogue. Unrated is not a score of zero.
What beats Muse Spark 1.2 Contributor?
Muse Spark 1.2 Contributor has no independent quality score. Unrated is not a score of zero.
Does this page use Artificial Analysis scores for Muse Spark 1.2 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 1.2 Contributor scored zero?
Unrated is not a score of zero.
MODEL MONUMENT
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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-1.2-contributor/)<a href="https://undominated.ai/models/meta__muse-spark-1.2-contributor/"><img src="https://undominated.ai/badge/meta__muse-spark-1.2-contributor.svg" alt="Muse Spark 1.2 Contributor — Undominated.ai dominance verdict" height="36"></a>Direct file: https://undominated.ai/badge/meta__muse-spark-1.2-contributor.svg — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never
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