just ran GPT 5.5, Gemini 3.5 Flash, and GLM 5.2 through LEAPBench
GLM 5.2 beat every frontier model evaluated except Opus 4.7 and 4.8
Today we’re releasing LEAPBench, a benchmark for how efficiently models learn from feedback over many rounds.
Most evals only score whether a model eventually reaches a good solution. LEAPBench scores how many tries it took to get there.
Two systems can reach the same optimum
