Meta released Muse Spark 1.2, its latest artificial intelligence model. The model achieved a score of 54 on the Artificial Analysis Intelligence Index. This represents a three-point improvement over Muse Spark 1.1. The score has increased by 11 points since the version released in April.
Meta now ties with SpaceXAI’s Grok 4.5 for third place among U.S. AI laboratories. The update specifically improves performance in agentic knowledge work. This involves complex tasks such as data analysis and presentation preparation.
Anthropic’s Claude Opus 5 and OpenAI’s GPT-5.6 Sol currently hold the top two positions. The index results underscore the intensifying competition among leading technology firms in the AI sector.