My evaluation of some of the models over past ~24 hours testing/building: GPT 5.6 Sol is excellent. You can feel the care in it. Bravo as usual OpenAI. muse-spark-1.1 is way off the mark after my testing of some real questions. Bad formatting, not thorough, doesn't dig deeper, seemingly afraid to respond at length, too utilitarian. Something is off. Cursor Grok 4.5 has been joyful to use. I ask it lots of side questions while Claude codes. The fast mode is a real delight each day. It really understands, chomps through the code base, and has gotten me to trust it more each day.