# Drex 1.5 vs ScaleDown (slim)

> Drex 1.5 scores 69.5 (B) to ScaleDown's 48.6 (D) for decision models. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/nace-drex-vs-scaledown.md (~2,700 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/compare/nace-drex-vs-scaledown.json · canonical https://www.anchorterminal.com/compare/nace-drex-vs-scaledown
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-14
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

Drex 1.5 scores 69.5 (B) on agent readiness against ScaleDown's 48.6 (D), and leads in 6 of 7 scored categories. Both do decision models.

- Drex 1.5: B 69.5, rank #189 of 1084 · https://www.anchorterminal.com/tools/nace-drex.min.md
- ScaleDown: D 48.6, rank #873 of 1084 · https://www.anchorterminal.com/tools/scaledown.min.md
- Drex 1.5, good for Routing, triage and yes or no gates inside an agent, where the caller supplies the options and acts on the probabilities. Suited to hosted use at a low per-token price, or to open weights where the licence fits. Ahead on Reliability, 80 against 20; Schema & documentation, 88 against 69; Agent ergonomics, 85 against 76; Security & auth, 65 against 48; Maintenance & community, 65 against 56; Transparency & trust, 61 against 54.
- ScaleDown, good for Cheap, high-volume labelling, routing and yes or no checks where a probability is more useful than prose, and for pulling described fields with offsets from text, images or PDFs. Also Free to start without a card.

| Category | Drex 1.5 | ScaleDown |
| --- | --- | --- |
| Reliability (16%) | 80 | 20 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 88 | 69 |
| Agent ergonomics (13%) | 85 | 76 |
| Security & auth (14%) | 65 | 48 |
| Payments & pricing (10%) | 40 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 65 | 56 |
| Transparency & trust (7%) | 61 | 54 |

| Fact (where they differ) | Drex 1.5 | ScaleDown |
| --- | --- | --- |
| Vendor | Nace AI, Inc. (Nace.AI) | Carbon ScaleDown, Inc. |
| Hosted endpoint | `https://console.nace.ai/v1/systemone` | `https://api.scaledown.xyz` |
| Pricing | Freemium | Pay per use |
| Licence | Hosted API under the Nace AI Terms of Service, last updated 5 May 2026. Weights under the Nace AI Open RAIL-M licence (modified, version 1.0, October 2026), which is not an open-source licence. Businesses above $1 million in revenue or funding need a separate commercial licence, and competing products are excluded. The bundled code/kev package, derived from Jared Palmer's Kev (https://github.com/jaredpalmer/kev), and the GitHub repository are Apache-2.0, and the agent skill is MIT. | Proprietary hosted models under ScaleDown's Terms of Service. The langchain-scaledown integration is MIT |
| Last release | 2026-09-28 | 2026-10-14 |
| Terms last updated | 2026-10-09 | couldn't be read |
| Privacy policy last updated | 2026-10-09 | couldn't be read |
| Customer content may train models | yes, with an opt-out | couldn't be read |
| Terms restrict automated access | not found in the text | couldn't be read |
| Terms restrict benchmarking | yes | couldn't be read |
| Terms or service can change without notice | yes | couldn't be read |
| Arbitration or class-action waiver | yes | couldn't be read |
| Popularity | 318 npm/wk, 156 PyPI/wk | 0 stars |