Model board / Muse Spark 1.2

Muse Spark 1.2

previous Meta · Llama & Muse

Verified 2026-09-03 against the pages listed below. Prices are USD per 1M tokens, list rate — no committed-use, enterprise or volume discount.

Input
$1.25
Cached input
$0.15
Cache write
Output
$4.25
Context window
1,000,000
Max output
Weights
closed
Caching
unverified

no long-context premium — the same rate across the full window. A `muse-spark-1.2-contributor` tier bills $0.10 in / $0.002 cached / $0.20 out in exchange for your traffic being used for product improvement, at 100 RPM against the standard tier's 3,000. Web-search grounding is $2.50 per 1,000 queries on top

max output not stated on either sourced page

a cached-input rate is published, but neither page says whether caching is automatic or explicit

Watch out

Superseded by Muse Spark 1.3 this pass at an identical rate; 1.1 and 1.2 are both still on the pricing page. Meta's first closed model — this row is not open weights, and nothing in the Llama licence applies to it

What we would use it for

Coding agents on a first-party Meta endpoint, flat-priced across 1M tokens

What this has cost, week by week

Output price at each refresh since 2026-08-14. A vendor change is the provider changing its price. Our correction means this board changed what it prints and the provider's charge did not move — the two are never merged, because publishing the second as the first would be a price rise that never happened.

08-14 $4.2508-20 $4.2508-27 $4.2509-03 $4.25

Nothing has moved since we started tracking it.

Where these numbers came from

No number on this page was written that was not read from one of those pages on 2026-09-03. If one is wrong, send us the source URL and it is corrected in the next weekly refresh, with a changelog line saying what was wrong — contact@naderu.com.

The rest of the board

This row sits alongside 53 others on the model board, refreshed every week. The same data as JSON, and the terms for using it, are at /board-data.