Muse Spark 1.3 Reenters Top 10 Code Arena WebDev

Arena.ai posted that Muse Spark 1.3 (xHigh) reached roughly tenth place in Code Arena WebDev with 1623 AutoEval points. The account stated its score sits close to Claude Fable 5 at eighth with 1628 points and GPT-5.6 Sol at eleventh with 1616 points. The post described the result as a large gain over earlier versions and included a screenshot of the leaderboard bar chart. The claim originates solely from the official Arena.ai account on the platform.