API cloud
Smart API Router
How a request moves through rules, the Galvanize-60M model and the optional local guard.
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Every call to POST /analyze goes through the Smart API Router. It runs two layers in the same request and combines them; a third, optional layer runs on your side.
Layer 1: rules
Deterministic regex and structure checks for instruction overrides, sensitive paths, exfiltration patterns and obfuscation. High-confidence matches decide immediately. Self-hosted in zn-gate, this layer takes under 0.1 ms p50 for inputs up to about 1,000 characters.
Layer 2: Galvanize-60M
The neural model scores every request in band, so paraphrased, multilingual and long inputs are covered even when no rule matches. Production threshold: 0.95. Measured CPU inference: 11.52 ms p50. The verdict is block if either layer blocks.
| Model property | Value |
|---|---|
| Architecture | 4-layer ModernBERT, security pooling (3,072 dims) |
| Context | up to 8,192 tokens |
| Runtime | INT8 ONNX |
| Tool false-positive rate | 1.00% (benchmark, September 2026) |
Benchmark details and comparisons: Galvanize-60M.
Layer 3: local guard (optional)
npx -y zn-gate mcp (or the SDK) runs the rules on your machine before anything leaves it. Local checks are free and never count against cloud quota. The Galvanize-60M weights are on Hugging Face under Apache-2.0 if you want to self-host the model too.
Which layer decided?
Read decided_by in the response (rules, ml, or a fallback value) and the X-ZN-Router-Level header. Every analyzed request runs the neural model and counts against your plan, whichever layer decided.