Drex v1.5

Structured output

Hugging Face Website

System One decision model for typed, calibrated probabilistic answers over text or structured state

Context: 131K
Released: 2w ago
Input / 1M tokens: $0.04
Output / 1M tokens: $0.00

Sources:models.devOpenRouter

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Other sourced evaluations appear below; missing scores are not zero.

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

No benchmark results have been matched to this model yet.

Specifications

Developer: Nace Ai
Model family: —
Type: decision
Predecessor: —
Successor: —
Released: September 28, 2026
Model ID: nace-ai/drex-v1.5
Openness: Closed
License: —
Input modalities: text
Output modalities: decisions
Modality: text->decisions
Tokenizer: Other
Max output tokens: 118K
Hugging Face: nace-ai/drex-v1.5
Source freshness: Metadata synced Oct 8, 2026, 10:17 PM UTC

Additional source evidence

Source model: nace-ai/drex-v1.5
Source type: decision
Last updated: 2026-09-28
Model context: 139K
Model output limit: —
Open weights: No
File attachments: No
Reasoning: No
Tool calling: No
Structured output: Yes
Temperature control: No

Official references

Documentation

Complete source record (JSON)

{
  "id": "nace-ai/drex-v1.5",
  "name": "Drex 1.5",
  "description": "System One decision model for typed, calibrated probabilistic answers over text or structured state",
  "type": "decision",
  "last_updated": "2026-09-28",
  "attachment": false,
  "reasoning": false,
  "tool_call": false,
  "structured_output": true,
  "temperature": false,
  "modalities": {
    "input": [
      "text"
    ],
    "output": [
      "text"
    ]
  },
  "limit": {
    "context": 139264,
    "output": 0
  },
  "release_date": "2026-09-28",
  "open_weights": false,
  "links": [
    {
      "url": "https://drex.nace.ai/docs",
      "label": "Documentation",
      "type": "docs"
    }
  ]
}

Infrastructure

Provider availability

All providers

Provider	Endpoint	Context	Input /M tokens	Output /M tokens	Cached input /M tokens	Cache write /M tokens	Uptime 1d	Data handling
DeepInfra	deepinfra	131K	$0.04	$0.00	—	—	100.00%	ZDR: Yes Training: Unknown Prompt logging: Unknown Retention: Unknown ZDR source Privacy policy Checked 2026-10-15

Provider data:OpenRouter