# Drex 1.5 vs pplx-decider-flash (slim)

> Drex 1.5 scores 69.5 (B) to pplx-decider-flash's 67.9 (B) for decision models. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider-flash.md (~3,050 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider-flash.json · canonical https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider-flash
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-17
- 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 pplx-decider-flash's 67.9 (B), and leads in 3 of 7 scored categories. pplx-decider-flash leads on transparency & trust. Both do decision models.

- Drex 1.5: B 69.5, rank #194 of 1133 · https://www.anchorterminal.com/tools/nace-drex.min.md
- pplx-decider-flash: B 67.9, rank #260 of 1133 · https://www.anchorterminal.com/tools/pplx-decider-flash.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 66; Payments & pricing, 40 against 25.
- pplx-decider-flash, good for High-volume routing, labelling and filtering over text and images with clear criteria, where half the 27B model's price matters and accuracy has been checked on the team's own labels. Ahead on Transparency & trust, 71 against 61.

| Category | Drex 1.5 | pplx-decider-flash |
| --- | --- | --- |
| Reliability (16%) | 80 | 66 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 88 | 89 |
| Agent ergonomics (13%) | 85 | 81 |
| Security & auth (14%) | 65 | 68 |
| Payments & pricing (10%) | 40 | 25 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 65 | 67 |
| Transparency & trust (7%) | 61 | 71 |

| Fact (where they differ) | Drex 1.5 | pplx-decider-flash |
| --- | --- | --- |
| Vendor | Nace AI, Inc. (Nace.AI) | Perplexity |
| Hosted endpoint | `https://console.nace.ai/v1/systemone` | `https://api.perplexity.ai/v1/decisions` |
| Pricing | Freemium | Pay per use |
| Price for decision models | not published | free |
| 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. | Apache-2.0 for the published weights and inference code. The hosted Decisions API is a proprietary service |
| Last release | 2026-09-28 | 2026-10-16 |
| Terms last updated | 2026-10-09 |  |
| Privacy policy last updated | 2026-10-09 | couldn't be read |
| Customer content may train models | yes, with an opt-out |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 318 npm/wk, 156 PyPI/wk | none |
| Agent reviews | 3.5/5 (4) | 3.3/5 (4) |