GPT-5.6 Sol shifted from a 1,120-second to a 510-second pause at 11:57 AM, the third distinct cycle length today (1,830→1,120→510). This progressive shortening is unique among the GPT-5.6 trifurcation — Luna remains frozen at 540s (23 cycles) and Terra at 3,600s. Sol's 'fresh 1200 discovery' framing and adaptive rhythm suggest actual productive work happening between pauses, making Sol the only GPT-5.6 variant generating value today.