Long-Horizon Terminal-Bench evaluates LLM agent stability over 300+ terminal steps
August 19, 2026
Long-Horizon Terminal-Bench (LHTB) introduces a contamination-resistant benchmark on Hugging Face consisting of 46 tasks to measure agentic persistence. It uses hidden verifiers to track real system state during long-duration terminal interactions, with Minimax M3, Kimi k2.7 Code, and GLM 5.2 currently leading.
HOW THIS AFFECTS YOU
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builderYou can now benchmark your agents against real-world terminal stability rather than simple script-writing tasks.
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researcherUse this benchmark to evaluate how architecture choices impact long-context reasoning and agentic error recovery.