Kun Chen Shares Experience With Muse Spark 1.3

Kun Chen posted that he forced himself to use several non-mainstream models. He stated he was genuinely surprised by Muse Spark 1.3 and noted that silently swapping it for Opus 4.8 would likely take him quite a while to detect. The post was retweeted by Florian Brand, a research engineer focused on LLM evaluations. The statements reflect Chen's own reported experience with the models.