Terminal-Bench 2.0 on claude-opus-4-5

89 tasks, 1 attempt, open network. Updated 25 Oct 2026.

Pass rate by harness, higher is better

Reference

Δ vs mux, pts

mux58.4%95% interval 48.3–68.5mux is the reference.

OpenCode51.7%95% interval 41.6–61.8OpenCode minus mux: −6.7 points, 95% interval −15.7 to +2.2, over 89 tasks both ran; too close to call.

Every harness on this board, in its order
Harness	Rank	Last published
mux	1–2	25 Oct 2026run #71
OpenCode	1–2	25 Oct 2026run #77