We tested GPT 5.6 Sol Ultra against @AnthropicAI's Fable 5 on a one-shot subway surf inspired endless running game and this was the result : Fable 5 : silky-smooth gameplay, great sound effects, solid build all around. but it played it safe - the levels were too easy, nothing pulling you back for one more run. GPT 5.6 Sol : nailed the difficulty curve, great vibe, enough content to keep playing, and the gameplay itself was top notch. at 1/8th of the cost. the catch nobody mentions: GPT 5.6 took ~2x longer to generate. so that's the frontier trade right now - pay 8x for speed, or wait twice as long for the same class of output. which side of that trade are you on?