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Nace AI Open-Sources Drex Max Decision Model, Says It Runs Fully on M4 and M5 Macs

November 1, 2026 at 14:40 EST

Open Source
Sales & Business

Nace AI has open-sourced Drex Max, its decision model, and says the model can now run entirely on Apple's M4 or M5 Mac hardware.

Open-source release · Nace AI

Drex Max: a decision model that runs locally on Apple M4 and M5 Macs

Nace AI has open-sourced Drex Max, a model that picks from fixed answer options and returns probabilities rather than free-form text. The company says the full model can now run entirely on consumer Apple silicon, without a cloud GPU.

How it works

From document and question to a ranked decision

1 · INPUT

A document plus a question, such as which team should handle a support ticket.

→

2 · FIXED OPTIONS

The answer is chosen from a predefined set, not generated as free text.

→

3 · PROBABILITIES

A ranked likelihood across the options for each input.

→

4 · WORKFLOW

A business system acts directly on the top-ranked result.

What the release changes

Runs fully on Apple M4 or M5 Mac hardware, with no cloud GPU dependency.
Can lower costs and simplify deployment for small teams and solo developers.
Open code lets outside developers inspect, modify, and build on the model.

Still unknown

Independent benchmarks and accuracy against other classification or routing methods.
Model size and memory requirements, which decide whether smaller machines can run it.
License terms.

Watch list

The release matters most as a sign that decision models are being packaged for everyday local hardware.

Evaluations
Published results on real tasks.

Documentation
Supported inputs and answer formats.

Adoption
Developers building routing or triage tools.

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