Mark Zuckerberg says Meta's Watermelon model and Muse Spark open weights are "coming soon" (Mark Zuckerberg/@finkd)

Meta released Muse Spark 1.3, which improves coding and agentic performance at the same price as the previous version, with plans to release the Watermelon model and open weights soon. Simultaneously, Google launched Gemini 3.8 Flash for $0.75 per million input tokens, while a federal judge ordered Google to integrate its ad tech with rivals.