Meta releases Muse Spark 1.3: frontier performance "almost too cheap to meter"
denny_zhou · x · 2026-09-03
Meta's Alexandr Wang announced Muse Spark 1.3, live in Muse Code and the Meta model API — billed as their most capable model yet with frontier-level performance at near-meterless pricing, major agentic/coding gains, and better usability.
Researcher xinyunchen noted the team has worked on long-context since Muse Spark 1.1, with Denny Zhou and others contributing to the long-context improvements in this release.
Related event: Meta Launches Muse Spark 1.3: Near-Frontier Performance at ~1/8 the Price(53 posts)→
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