Meta
Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through...
OpenRouter
Price record: 2026-09-16. Source: openrouter.
No current subscription pricing is tracked for this model.
Confirm this specific model, usage limits, and billing terms with the provider. A subscription does not automatically include API credits.
No login needed to compare. Prices are in USD; provider charges are separate from AI Market Cap plans. Context length, caching, tools, taxes, and regional terms can change the final cost. Open weights do not mean free hosting.
43.4
Quality Score
1294
Arena ELO
Undisclosed
Parameters
1M
Context
This measures the amount of verifiable public evidence we have, not how capable the model is. A missing field means it has not been verified yet, not that its value is zero.
13 of 22 public signals
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has live arena signal, but it does not have structured benchmark rows or provider benchmark evidence yet.
A full normalized benchmark row is not available for this model yet.
Live arena evidence is already available below, so there is still a competitive signal even without a full benchmark table yet.
Sign in to join the discussion
0
Downloads
0
Likes
Sep 2026
Released
3/5 signals
2/4 signals
3/5 signals
1/4 signals
4/4 signals
Parameters
—
Training compute
Not reported
Dataset scale
Not reported
Base model
Not reported
Source-reported access: API access · Confident confidence
Gaps we are still tracking
1294
ELO Score
1285 - 1303
95% Confidence
+/-9 points
5.6K
Battles
Sep 16, 2026
Last Updated