Claude tests several 'cutting-edge' GPT models Since I wasn’t sure how to use the remaining quota, reset count, and 62,500 credits for GPT Pro 20x, I had Claude personally test the actual capabilities and speed of several cutting-edge GPT models. Picked real project code, two questions. The conclusion is: 1. Prioritize GPT-6.1 Sol 2. GPT-6 Astra is close (slightly faster) Bonus comparison group: Kimi K3 is slow, expensive, and performs poorly. I’d recommend skipping it altogether (the ¥199 subscription for Kimi is basically wasted money, and it’s still 5 ChatGPTs behind the $20 Claude Pro).