Post by Casper Hansen on X
Casper Hansen@casper_hansen_
XK2 Thinking released with Heavy Mode!
K2 Thinking Heavy Mode employs an efficient parallel strategy: it first rolls out eight trajectories simultaneously, then reflectively aggregates all outputs to generate the final result.
BETTER than gpt-5-pro at HLE :)

293 likes9 repliesPosted Nov 6, 2025