---
id: "nace-ai/drex-v1.5"
also: ["nace-ai/drex-v1.5-20261009", "nace-ai/drex-v1.5"]
cheapest_list_usd_per_m: "0.04 in, 0.0 out, at deepinfra/us on openrouter"
cheapest_effective_usd_per_m: "0.0388 in, 0.0 out, at deepinfra/us on openrouter"
context: 131072
max_output: 117964
input: ["text"]
output: ["decisions"]
released: "2026-10-09"
api: ["/api/alpha/decisions"]
endpoints: 1
gateways: "openrouter (1)"
no_training: 1
trains: 0
retains_prompts: 0
---
# Nace.AI: Drex v1.5

Drex v1.5 is a 9B decision model from Nace.AI. Given a state (text or JSON) and typed questions (yes/no, multiple choice, or ordinal score), it returns a calibrated probability for...