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Performance

Detection

Against JailbreakBench, SusFactor blocks roughly 88% of attacks at a 9% benign false-positive rate (threshold 0.5). This is the operating point for the current SusFactor model; tune the threshold per path to trade detection against your own false-positive tolerance. This false-positive rate is lower than comparable public detectors evaluated the same way: WildGuard sits at 45%, Mistral at 39%, and Llama Guard 3 at 23%, per our launch announcement. It also performs competitively against generative guardrail models 7-8B parameters in size, more than 10x SusFactor's own 560M.

These figures describe SusFactor's binary safe/suspicious classification; there is no sub-category breakdown (e.g. "role-play attack" vs. "encoding attack") in the score itself. See our blog for detailed evaluation results for SusFactor.

Latency

SusFactor is low-latency: self-hosted deployments score a prompt in roughly sub-50ms on recommended CPU hardware under specified conditions (actual latency varies by prompt length and hardware).

  • Self-hosted (in-process): inference runs in the same process as your request handler, with no network call. This is the fastest path and the default for self-hosted/commercial deployments.
  • Early-access beta: the hosted API currently runs inference on a remote backend rather than in-process, trading a small amount of latency for zero infrastructure to manage. Latency on the early-access beta is not a fixed SLA yet.
note

Treat these figures as directional; full evaluation methodology will follow in a companion research paper.

Choosing Self-Hosted vs. Hosted

Self-hostedEarly-access beta
LatencyLowest (in-process)Slightly higher (remote inference)
InfrastructureYou run it yourselfNone; 0DIN runs it
Data localityPrompts never leave your environmentPrompts are sent to 0DIN's hosted endpoint
Best forProduction, latency-sensitive pathsEvaluating fit before committing to self-hosting