Drex Max is here: the decision model that sees.
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NewDrex Max sees screens and video

The execution layer for agents.

Your agent writes the code. Nace does the grunt work around it: reading files, sorting, and making the small calls. It runs on fast, cheap models.

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Drex 2.0 open weightsGitHubHugging Face

Works with

Leading performance at a fraction of the cost.

Decision Index

Public, chance-corrected · Higher is better

67.6

+6.9 vs Jev 1.14
Highest of 5 scored

  1. Drex Max: 67.6
  2. Drex 2.0: 61.3
  3. Jev 1.14: 60.7
  4. Drex 1.5: 58.1
  5. GPT-6 Luna Decisions: 47.8

Median API latency

Per decision · Lower is better

183 ms

Through the API, as the caller sees it
Jev 1.14: 196 ms

  1. Drex 1.5: 145 ms
  2. Drex 2.0: 151 ms
  3. Drex Max: 183 ms
  4. Jev 1.14: 196 ms
  5. GPT-6 Luna Decisions: 326 ms
  6. GPT-6 Sol: ~2.0 s
  7. Claude Opus 5.5: ~3.5 s

Cost per 1,000 decisions

USD · Lower is better

$0.06

1.4× the cost
Jev 1.14: $0.042

  1. Drex 1.5: $0.04
  2. Jev 1.14: $0.042
  3. Drex Max: $0.06
  4. Drex 2.0: $0.06
  5. GPT-6 Luna Decisions: $0.10
  6. GPT-6 Sol: $3.33
  7. Claude Opus 5.5: $10.17

Public benchmarks. Latency is the median API time per decision, as the caller sees it, network included; ~ marks an approximate figure. Bars start at zero.

Builders on Drex and NDI, in their words.

Watch an agent run the workflow.

An agent with a Nace key reads an AP packet, finds the page that matters and decides what to do with it. Every call in the window is a Nace endpoint, and every value comes back with the page it was read from.

A hazy painting of Manhattan seen through park trees, pale towers in the distance and a crowd moving in a blur along the street below

claude

$ export NACE_API_KEY="nace_sk_…"

$ claude

> This AP packet from Halden Supply mixes invoices, a contract amendment and a W-9. Which invoice can we pay today, and did the terms change?

console · split(file: "halden-packet.pdf")

38 pages → 5 documents

1 Invoice INV-2291 p. 1–3

2 Invoice INV-2304 p. 4–6

3 Contract amendment No. 3 p. 7–19

4 W-9 p. 20

5 Purchase order PO-77120 p. 21–38

console · classify(document: 3, classes: "procurement")

contract_amendment · 0.97

console · extract(document: 3, schema: { payment_terms, effective_date, parties })

payment_terms "Net 45, 2% discount within 10 days" found

effective_date "2026-10-01" found

parties Halden Supply Co., Meridian Logistics found

console · ground(document: 3, text: "Net 45")

page 11 · box 0.12 0.41 0.88 0.47 · exact · 0.99

console · extract(documents: [1, 2], schema: { invoice_no, total, payment_terms, po_number })

INV-2291 $18,420.00 "Net 30" PO-77120 p. 2

INV-2304 $9,870.00 "Net 45" PO-77120 p. 5

console · systemone(state: "INV-2304 · $9,870.00 · Net 45 · matches PO-77120 · terms per amendment No. 3", questions: { approve: noul, route: choice })

approve noul 0.93

route payments 0.88 · review 0.09 · reject 0.03

Pay INV-2304 today: $9,870.00 against PO-77120 on Net 45, the terms Contract amendment No. 3 sets on page 11, effective 1 October 2026. Drex puts 93% on approving it and routes it to payments.

Hold INV-2291. It still carries Net 30 on page 2, which predates the amendment. Want me to flag it for AP review?

Why now

After the code, the run.

Code generation was the last wave. Workflow execution is the next. Once the code exists, it has to run: call tools, read files, classify, decide and reason, thousands of times a day. Paying a frontier LLM for every one of those steps is slow and expensive. That is where Nace sits.

  1. The last wave

    Code generation

    Large models write the code, the tests and the pull request.

  2. The next waveNace runs here

    Workflow execution

    The code calls tools, reads files and makes decisions, step after step, in production.

Two layers, one key

Perception and Decision.

Two layers your agent calls instead of a frontier LLM. Each one is a small model built for one job, and both sit behind the same key.

  1. 01 · PerceptionExample NDI extraction with its source

    Invoice 2023T210

    Bookkeeping 600.00

    Total 600.00

    /totalp. 1 · box 0.62 0.81 0.94 0.85

    NDI

    Every answer brings receipts.

    Reads 36 file types, from scans to spreadsheets, email and video. Parse, split, classify, extract and ground, and every value points back to the page it came from.

    Explore NDI
  2. 02 · DecisionExample Drex decision: one invoice, three options

    INV-2304 · $9,870.00 · matches PO-77120

    • approve0.93
    • review0.05
    • reject0.02

    one pass

    Drex

    Odds, not opinions.

    A calibrated probability on every option in one pass, in under 200 ms. Drex Max decides from screens, images and video.

    Explore Drex

Frontier · Drex Max

Reads the screen and picks the next click, fast.

Drex Max is the frontier of the Drex family. Give it a screenshot and the question, and it puts a probability on every element your agent could click. Built for computer use and browser use, and it understands video too.

  • Computer use
  • Browser use
  • Video understanding
Try Drex MaxMeet Drex Max
A painting of someone working at a screen on a hillside, warm clouds rising over the mountains behind
ap.halden.com/invoices/88214
Invoice
INV-88214
Amount
$16,920.00
PO match
1,200 units
Hold for buyerApprove invoiceDispute
click · Approve invoicep 0.94 · 174 ms
Computer use
0.780On OSWorld-Verified, the benchmark of real tasks across desktop apps.
Browser use
88.6On Mind2Web, the benchmark for picking the right element on a page.
Every step
<200 msMedian API time per decision, from text or a screenshot. Fast enough for every step of the loop.

One key, everywhere.

Console is plain HTTPS and JSON behind one nace_sk_ key. Any harness that can call a tool can call it; these are the ones we test with.

  1. 01

    Create a key

    Sign up in Console. A new account starts with $25 of credit.

    Get API key
  2. 02

    Add Nace to your agent

    One command gives your coding agent every layer as a tool.

    claude mcp add nace -- uvx nace-mcp
  3. 03

    Call any layer

    One header, one credit balance and one error envelope for Perception and Decision.

    Authorization: Bearer $NACE_API_KEY

Works where your agent works

Or self-host Drex 2.0GitHubHugging Face

One platform. Four boundaries.

Same models, same API, same serving stack at every tier. The only thing that changes is the boundary around your data, from our cloud to your metal.

Your data trains your models. The weights, adapters and eval sets stay yours, inside the boundary you pick.

  1. A blurred evening street downtown, crowds and traffic streaming past tall buildings
    Where it runs
    Our cloud
    Network path
    Public TLS
    GPU tenancy
    Shared
    Updates
    Continuous

    Managed Cloud

    Start on our GPUs, behind our API, with a key from Console.

    • Shared GPU pool with strict tenant isolation
    • Public API over TLS, no training on your data
    • Usage-based pricing, no infrastructure to run

    For: pilots, evaluations, mid-market teams moving fast.

  2. A glass-walled conference room off an office hall, people passing in a blur on the other side of the glass
    Where it runs
    Our cloud
    Network path
    Private link
    GPU tenancy
    Dedicated
    Updates
    Continuous

    Dedicated Cloud

    Your own GPU cluster in our cloud, reached over private links instead of the public internet.

    • Single-tenant compute, pinned to your region
    • PrivateLink or VPC peering into your network
    • Customer-managed keys, dedicated throughput

    For: regulated teams that are cloud-first but done with shared infrastructure.

  3. A still lake at dawn closed in on every side by dark woods
    Where it runs
    Your cloud account
    Network path
    Inside your VPC
    GPU tenancy
    Dedicated
    Updates
    Pull from registry

    Your Cloud

    The platform installs inside your AWS or Azure account. Data stays within your boundary.

    • Runs in your VPC with your keys, your logs, your IAM
    • Updates pull from our registry; nothing flows back out
    • The deployment model our audit and banking customers run in production

    For: banks, Big 4 firms, anyone whose security review starts with “show us the network diagram.”

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  4. An empty shore under a pale sky, the sea running out to a bare horizon
    Where it runs
    Your datacenter
    Network path
    None
    GPU tenancy
    Dedicated
    Updates
    Signed offline bundles

    On-Prem & Air-Gapped

    Your datacenter, your hardware, zero outbound.

    • No egress, no telemetry, offline license activation
    • Signed offline update bundles on your schedule
    • Ships as software on your servers or as a pre-configured appliance

    For: government, defense, and sovereign environments where the network cable isn’t there.

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Questions

First request today. Your own cloud when you need it.

Create a key in Console and send your first request in a minute. When the data cannot leave your network, we bring the platform inside it.

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