Meta Ships Muse Spark 1.2, Its First Model to Beat Opus 5 on an Internal Coding Benchmark Artificial Intelligence August 5, 2026 Meta Ships Muse Spark 1.2, Its First Model to Beat Opus 5 on an Internal Coding Benchmark Meta's Muse Spark 1.2 posts a 59.3% DeepSWE score, up from 53.3% a month ago,…