Model board / Muse Spark 1.3

Verified 2026-10-22 against the pages listed below. Prices are USD per 1M tokens, list rate — no committed-use, enterprise or volume discount.

identical to 1.2 and 1.1, which remain on the pricing page. No long-context premium — the same rate across the full window. A `muse-spark-1.3-contributor` tier bills $0.10 in / $0.002 cached / $0.20 out in exchange for permission to use the prompts, code, files and context you send, plus the responses you get back, to train future Meta models

the models page states 1,048,576; the board keeps its rounded 1M

Meta caches the stable prefix automatically — no flag or key

Watch out

The contributor tier is a twelfth of the input rate and a twenty-first of the output rate because it is a different trade: the prompts, code, files and context you send, plus the responses you get back, train future Meta models, at 150 RPM against the standard tier's 3,000.

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 2026-09-03. 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.

Nothing has moved since we started tracking it.

Where these numbers came from

• https://dev.meta.ai/docs/pricing-rate-limits.md
• https://dev.meta.ai/docs/models.md
• https://dev.meta.ai/docs/prompt-caching.md

No number on this page was written that was not read from one of those pages on 2026-10-22. 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 76 others on the model board, refreshed every week. The same data as JSON, and the terms for using it, are at /board-data.