Nace.AIDecision modelOpen weights
Drex Max
Summary
Drex Max handles text and images and scores up to 255 supplied options per choice question. For example, you can use it to check what appears on a screen and choose among possible next steps.
The original version is available as the drex-max API model and as open weights. The local drex-max-v1 checkpoint has about 27 billion parameters. Its weights use Nace.AI's modified Open RAIL-M license.
All benchmark results
Every published result with its source, test setup and comparison models.
Show all 4 published benchmark results
Measurements without matching peer values
These measurements have no matching peer values under the same test conditions. Their original values and sources remain available here.
Drex Finance Index (Accuracy) (Show measurement, test conditions, and source)
- Source value
- 73.1
- Score
- 73.1
- Metric
- accuracy
- Unit
- %
- Category
- finance
- Direction
- Higher is better
- Sample
- 3361
- Source type
- vendor-reported
- Evaluator
- Nace.AI Drex for Finance
- Status
- active
- Retrieved at
- 2026-11-07
- Methodology
- Vendor-reported result. Nace.AI evaluated 3,361 decisions across 48 public finance test sets held out from training.
Decision Index 0.4.1 (Public) (Show measurement, test conditions, and source)
- Source value
- 67.52
- Score
- 67.52
- Metric
- chance-corrected skill
- Unit
- points
- Benchmark version
- 0.4.1
- Category
- decision
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- Nace.AI Drex technical report
- Status
- active
- Retrieved at
- 2026-11-07
- Methodology
- Vendor-reported result. Public-suite result from the October 22, 2026 leaderboard, reproduced in Table 12.
Decision Index 0.4.1 (Full) (Show measurement, test conditions, and source)
- Source value
- 66.6
- Score
- 66.6
- Metric
- chance-corrected skill
- Unit
- points
- Benchmark version
- 0.4.1
- Category
- decision
- Direction
- Higher is better
- Source type
- vendor-reported
- Evaluator
- Nace.AI Drex technical report
- Status
- active
- Retrieved at
- 2026-11-07
- Methodology
- Vendor-reported result. Full result including public and private tests from the October 22, 2026 leaderboard, reproduced in Table 12.
Drex Finance Index (Show measurement, test conditions, and source)
- Source value
- 60.1
- Score
- 60.1
- Metric
- chance-corrected skill with per-set floor
- Unit
- points
- Category
- finance
- Direction
- Higher is better
- Sample
- 3361
- Source type
- vendor-reported
- Evaluator
- Nace.AI Drex for Finance
- Status
- active
- Retrieved at
- 2026-11-07
- Methodology
- Vendor-reported result. Nace.AI evaluated 3,361 decisions across 48 public finance test sets held out from training.
Similar models
More models of the same kind as Drex Max, chosen by model line, developer, size, price and release date.
- Drex v2.0Nace.AI · same developer
- Drex v1.5Nace.AI · same developer
- Drex DLMNace.AI · same developer
- AutoTrust JEV-27B-VLAutoTrust AI · similar size
- ClefCloudflare · similar size
- AutoTrust JEV-27BAutoTrust AI · similar size
- pplx-decider-v1.1-27bPerplexity · similar size
- Drex Max v1.1Nace.AI · same developer
All specifications
Architecture
Input and output
Watermarking and provenance
AI watermarking refers to invisible signals embedded in the output. Visible marks and provenance metadata are listed separately. Unknown means there is insufficient evidence for that particular field.
- AI watermarking
- Unknown
- no source
- Watermarking technique
- Not known
- no source
Licence and access
- Shutdown
- None announced
- no source
API
Further details
- Local context window
- 16,384 tokens by default, configurable up to 262,144 tokens.
- Source: Local context window
- API input limit
- 262,144 tokens per question, including context, images and formatting.
- Source: API input limit
Sources and data date
Benchmark sources at a glance
Which independent evaluators tested this model. This is coverage, not a quality ranking.
No active result from the reviewed external evaluators can currently be attributed to this model. Other source evidence remains available below.
Without vendor claims and historical or disputed results; those stay labelled in the single values.
| Type | Evidence and data date |
|---|---|
| Research status | Research date November 7, 2026. 2 source URLs checked. This documents the inspected sources, not an exhaustive inventory of every publication. |
| Additional source | Nace.AI API model catalog (retrieved November 7, 2026) |
| Additional source | Drex Max model card (retrieved November 7, 2026) · Drex Max model card · Editorial description reviewed November 7, 2026 |
| Additional source | Drex Max API guide (retrieved November 7, 2026) · Drex Max API guide · Editorial description reviewed November 7, 2026 |
| Additional source | Nace.AI Drex technical report (retrieved November 7, 2026) |
| Additional source | Nace.AI Drex for Finance (retrieved November 7, 2026) |