A 149.6M ModernBERT-base cross-encoder with a scalar head that picks an agent's next action or tool from labels and descriptions you supply. Each option is scored against the state and a softmax ranks the set; no text is generated. Experimental preview, not calibrated.
Superagent's 27B security decision model. It scores 2 to 16 supplied options in one forward pass and returns a probability for each, for triaging prompt injection, agent tool calls, code changes, logs and alerts. Apache-2.0 weights (gated, auto-approved) plus a hosted API.
Decides
choice, rank, route
choice, score, noul, classify, route
Architecture
modernjev
security-one
Fine-tuned from
answerdotai/modernbert-base
denis-pplx/autojev-27b
License
apache-2.0
apache-2.0
Availability
Open weights
Open weights + hosted API
Hosted by
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Superagent
Input price
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Decision accuracy
73.4%
99.8%
Calibration error
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Valid action rate
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Median latency
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p95 latency
Figures are from each model’s manifest; accuracy and latency are what the publishers report, on their own suites and hardware. Add a third model.
Questions
What is the difference between modernjev-decide and security-one?
modernjev-decide is from Maziyar Panahi and security-one from Superagent. modernjev-decide has open weights you can download and run; security-one has open weights and a hosted API. Both answer choice and route questions. Only modernjev-decide answers rank. Only security-one answers score, noul and classify. security-one reads up to 256K tokens of state, against 4K tokens for modernjev-decide. modernjev-decide is the smaller model, at 150M parameters to 27B.
Which is more accurate, modernjev-decide or security-one?
They report on different suites — modernjev-decide 73.4% on AgentToolDecisions-180K held-out test, next action type (1,158 decisions, 3 choices; the maker's split), security-one 99.8% on BIPIA binary prompt-injection detector adaptation (800 rows; Superagent's frozen evaluation, unsafe if P(unsafe) >= 0.70) — so the numbers do not rank them. Test both on your own labelled examples.
Which is cheaper, modernjev-decide or security-one?
modernjev-decide: Free (open weights). security-one: Hosted, price not published, or free to self-host. Open weights cost nothing per call beyond your own hardware.
Can I run modernjev-decide or security-one locally?
Yes, both: systemone pull maziyar-panahi/modernjev-decide and systemone pull superagent/security-one download the weights.
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Evaluation suite
AgentToolDecisions-180K held-out test, next action type (1,158 decisions, 3 choices; the maker's split)
