LiveBench Long Agentic

Long agentic work: extend business apps over many turns, run a codebase through simulated months, build and tune systems. Graded by scripts.

ModelsModels with a result.51
Top resultBest result on this benchmark.85.0%Claude Opus 5.5
Top-3 spreadPoints from first to third.6.2 pts
UpdatedDate the source changed the results.14 Oct 2026

Result and cost

51 of 51 results

Results

51 results
#ModelResultThe score from the source.CostUS dollars to run one task.
17GPT-5.5xhigh effort44.6%$13.85
18Kimi K3max effort42.8%$17.99
28GLM-5.3max effort35.9%$18.38
45Inkling14.1%$10.54