Model

Muse Spark 1.2

CLOSED

Meta · Muse Spark family · released Aug 5, 2026

Meta's August 5, 2026 update to Muse Spark 1.1, same $1.25/$4.25 pricing and 1M-token context. CloudPrice also lists a separate, much cheaper 'Muse Spark 1.2 Contributor' SKU ($0.10/$0.20) active the same day. Meta's own developer.meta.com comparison table has an unlabeled 'Muse Spark' column next to 'Muse Spark 1.1' showing large regressions on several benchmarks (e.g. DeepSWE 10.0 vs. 1.1's 53.3, JobBench 17.0 vs. 54.7) alongside gains on others (MCP Atlas 82.2 vs. 78.2) — it is unclear whether that column reflects this $1.25/$4.25 flagship or the cheaper Contributor tier, so no per-benchmark results are filed here pending disambiguation; this entry is intentionally left unranked.

ReasoningCodingVisionFunction callingTool useAgentic

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Elo · unrated

Parameters

Undisclosed

Active params

—

Context

1M tokens

Architecture

Proprietary multimodal reasoning model (undisclosed architecture), incremental update to Muse Spark 1.1

License

Proprietary

Languages

—

API price (in/out)

$1.25 / $4.25

Modalities

text · vision · audio · video

Benchmark results

Bar shows position within the tracked field; marker = field best

Run it locally

Closed weights — available via API only. No local deployment.

Input / M tok

$1.25

Output / M tok

$4.25

Muse Spark family

Elo progression across releases

Muse Spark 1.1 (xhigh)Jul 20262597.8 Muse Spark 1.2Aug 20261000.0

Resources

DOCShttps://developer.meta.com/ai/models/muse-spark APIAvailable via Meta API

API price $1.25/$4.25 · each benchmark row carries its own source badge (see methodology)