Where the line stands
How long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.
Every Muse release
Newest first — what each version changed versus the one before, in Meta's own numbers.
Meta's flagship edges closer to the leaders: four points up on the all-round score and clear gains on office and terminal tasks, at the same price and the same 1M-token context.
Compared with Muse Spark 1.2 · the model it replaces
Four points higher on the all-round intelligence score
Artificial Analysis Intelligence Index — a broad average across many tests
61
▲ up from 57 · +4 points
Does better on realistic office work
GDPval-AA v2 — real knowledge-work tasks, scored as an Elo rating
1709
▲ up from 1615 · +94 Elo
Same price as Muse Spark 1.2
Price per 1M tokens — what developers pay, input / output
$1.25 / $4.25
unchanged from Muse Spark 1.2
Introduced a contributor tier at $0.10 per million input tokens and $0.20 per million output tokens in exchange for permission to train on the user's prompts and completions.
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