SWE-1.7

Cognition put a cost penalty inside SWE-2's reinforcement-learning objective

The model averages 53 steps a run against SWE-1.7's 127, and Cognition says its mean rollout cost is 64% below Fable 5.1's on a leaderboard Cognition built, runs and grades. Reproducing that takes Devin's harness.