Meta Muse Spark 1.3 is out. Matches Claude Opus 5 on intelligence benchmarks.
Long-context retrieval (MRCR, 1M window): 98.1, best score I've seen. Coding beats GPT-5.6 Sol, roughly ties Claude Fable 5.1. 25% less tokens per task, 20% fewer tool calls.
Contributor pricing: $0.10/M tokens. Cheapest model at this tier right now.
Meta's been shipping fast on models lately. I think pushing AI into their own social apps gave them a real feedback loop. Better data, faster cycles.
