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Drex v1.5

Free
nace-ai/drex-v1.5

131K context · Oct 2026 · 3 upstreams

Drex v1.5 is a small decision model from Nace AI, served over the same System One contract as TypeSafe's Jev. Send application state and typed questions (noul / choice / score) and get back a calibrated probability for each fixed answer option, not generated chat text. It has a 131,072-token context window. Call POST /api/v1/decisions (POST /api/v1/systemone is the same handler).

context
131K
input, via anyrouter/decision
Free
output, not token-billed
n/a
question types
noul · choice · score

Upstreams

3
  1. 1Nace AIPlatform · your credits$0.05 / $0TPS —TTFT ——
  2. 2Nace AIYour key · not addedyour planTPS —TTFT ——
  3. 3OpenRouterYour key · not addedyour planTPS —TTFT ——
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Try it

Ask a typed question, read the probabilities

Details

Owner
Nace AI
Kind
Decisions
Released
Oct 2026
Context
131K
Data policy
Provider retention
Endpoint
/api/v1/decisions

Quick start

curl https://anyrouter.dev/api/v1/decisions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "state": "Help! My payouts have been failing for 3 days.",
  "model": "nace-ai/drex-v1.5",
  "questions": {
    "is_urgent": {
      "type": "noul",
      "instructions": "Does this convey urgency?"
    }
  }
}'