StepFun
Step 5 Preview
Not run yet. It takes effort low, medium, high. Reached via OpenRouter.
Run it
With an invite code, each of these plays the Fast suite and posts it to the Verified board. See what's wanted.
cube-arena-runner play --model step-5-preview --effort low cube-arena-runner play --model step-5-preview --effort medium cube-arena-runner play --model step-5-preview --effort high