HarmBench
Input—per 1M tokens
Output—per 1M tokens
Context—tokens
WeightsClosed
About
HarmBench is ranked #14 of 29 in LLM evaluation tools on Inferse. It runs on Linux.
Compared on LLM evaluation tools
- Free plan
- Yesgithub.com
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- Best LLM Evaluation Tools in 2026#14 of 29
- Best AI Security Testing Tools in 2026#19 of 29




