Code packs run 2026-06-16 (tool-free — sandbox executes the model's code, no tool-calls): humaneval-plus-30 29/30 (97%), lcb-v6-30 25/30 (83%, 2 losses = token_limit on the hardest). Substantiates the 'strong one-shot/competition coding' characterization with our own numbers (matches the authors' ~96% LeetCode). Folded into the llamacpp compose Quality field + registry status_note. Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>