Decision Models / Drex 2.0

OPEN

Drex 2.0

By Nace.AI · Released 6 Oct 2026

Drex 2.0 returns probabilities over typed answers for text, with open weights under Nace.AI's Open RAIL licence. Drex Max (13 Oct) adds images and screenshots, hosted only. The date is Drex 2.0's release in Nace.AI's model table.

Facts

Size
35B, about 3B active
Price
$0.06 per million input tokens, hosted · Compare prices
Context
State up to 131,072 tokens

Claims and sources

Links

Related projects

Drex inside DuckDB and other SQL systems

Source: nace-ai/drex-duckdb ↗

Nace's DuckDB extension asks typed questions about rows from SQL and returns probabilities as column values, for routing support tickets, classifying documents or scoring data you already query. Nace also publishes MIT-licensed connectors for Snowflake, PostgreSQL, ClickHouse and Apache Spark, including Databricks SQL. Text and JSON calls default to drex-v2.0; images need an image-capable model such as drex-max.

Nace AI · ★ 0 · MIT · Drex 2.0, Drex Max

  • sql
  • database

Source: Snowflake → Source: PostgreSQL → Source: ClickHouse → Source: Apache Spark and Databricks SQL →

inspect-drex: score agent outputs against a rubric

Source: nace-ai/inspect-drex ↗

A scorer for the UK AI Security Institute's Inspect framework that asks Drex whether an output meets your criteria and keeps the probabilities, so you can change pass thresholds after the run. It defaults to drex-max, whose target changes with flagship releases; pin a model for repeatable runs. Drex Max accepts images, while drex-v2.0 accepts text and JSON.

nace-ai · ★ 0 · MIT · Drex 2.0, Drex Max

  • evaluation
  • agent

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