According to Ethan Mollick, GPT5.2 generated a working Twigl shader while GLM5.2 Deep Think Max produced errors, highlighting coding reliability gaps.

According to @emollick, Opus 4.8 generated a complex Twigl shader of neo‑gothic towers in stormy seas in a single pass, signaling strong code-gen gains.

According to Ethan Mollick on X, Meta's Muse Spark Thinking underperforms compared with the current Big Three models, exhibiting odd tone and occasional factual looseness, and falls short on a neo-gothic shader coding task in twigl compared with leading models (source: Ethan Mollick on X, Apr 9, 2026). As reported by Mollick, earlier benchmarks he shared showed GPT 5.2 Pro generating a single-shot shader for an infinite neo-gothic city partially submerged in a stormy ocean, suggesting stronger code synthesis and visual reasoning than Muse Spark Thinking on the same prompt (source: Ethan Mollick on X). According to Mollick, these results indicate practical implications for developers: teams needing reliable shader generation, graphics prototyping, or complex code synthesis may achieve higher productivity with top-tier models while monitoring Muse Spark Thinking for improvements in factuality and stylistic control (source: Ethan Mollick on X).