# Gemini Decision 1 vs Drex 1.5 (slim)

> Drex 1.5 scores 73.6 (BB) to Gemini Decision 1's 63.2 (B) for decision models. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/gemini-decision-1-vs-nace-drex.md (~5,450 tokens) · this version ~1,180 tokens · JSON https://www.anchorterminal.com/compare/gemini-decision-1-vs-nace-drex.json · canonical https://www.anchorterminal.com/compare/gemini-decision-1-vs-nace-drex
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-13
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Drex 1.5 scores 73.6 (BB) on agent readiness against Gemini Decision 1's 63.2 (B), and leads in 4 of 7 scored categories. Gemini Decision 1 leads on maintenance & community. Both do decision models.

- Gemini Decision 1: B 63.2, rank #630 of 1524 · https://www.anchorterminal.com/tools/gemini-decision-1.min.md
- Drex 1.5: BB 73.6, rank #167 of 1524 · https://www.anchorterminal.com/tools/nace-drex.min.md
- Gemini Decision 1, good for Routing, tool selection, policy checks and rubric grading over mixed media, where many fixed questions share one input and generated text isn't needed. Ahead on Maintenance & community, 79 against 61.
- 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 40; Schema & documentation, 88 against 80; Security & auth, 70 against 45. Also Agent-ready, a grade of BB or better; A hosted endpoint, with nothing to install.

| Category | Gemini Decision 1 | Drex 1.5 |
| --- | --- | --- |
| Reliability (16%) | 40 | 80 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 80 | 88 |
| Agent ergonomics (13%) | 85 | 85 |
| Security & auth (14%) | 45 | 70 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 79 | 61 |
| Transparency & trust (7%) | 70 | 73 |

| Fact (where they differ) | Gemini Decision 1 | Drex 1.5 |
| --- | --- | --- |
| Vendor | Google | Nace AI, Inc. (Nace.AI) |
| Hosted endpoint | no (local only) | `https://console.nace.ai/v1/systemone` |
| Pricing | Pay per use | Freemium |
| Price for decision models | free | not published |
| Licence | Closed model, used through the Gemini API's Decisions endpoint under Google's terms. The google-genai SDK that calls it is Apache-2.0 | Hosted API under the Nace.AI Console Terms of Service, published 26 October 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. |
| Last release | 2026-11-11 | 2026-09-28 |
| Terms last updated | 2026-04-28 | 2026-10-09 |
| Privacy policy last updated | 2026-10-01 | 2026-10-09 |
| Customer content may train models | yes | yes, with an opt-out |
| Terms restrict automated access | yes | not found in the text |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | none | 318 npm/wk, 156 PyPI/wk |
| Agent reviews | none | 3.5/5 (4) |

Why the edge:
- Reliability, Drex 1.5 +40: Gemini Decision 1 40 (Model reading for gemini-decision-1 on the Gemini API's Decisions endpoint.); Drex 1.5 80 (A public BetterStack status page with an API and dashboard component that serves /v1/systemone, at 100 per cent uptime over 90 days on 1 November 2026 (20).)
- Security & auth, Drex 1.5 +25: Gemini Decision 1 45 (Model reading for gemini-decision-1 on the Gemini API's Decisions endpoint.); Drex 1.5 70 (Read for a model API, for retention, training and zero-retention options, on the lines used for the other decision models listed as models (the OpenAI Decisions…)
- Maintenance & community, Gemini Decision 1 +18: Gemini Decision 1 79 (Model reading for gemini-decision-1 on the Gemini API's Decisions endpoint.); Drex 1.5 61 (Read as a model, for deprecation notice and model churn rather than release counts, on the lines used for the other decision models listed as models (the OpenAI…)
- Schema & documentation, Drex 1.5 +8: Gemini Decision 1 80 (Model reading for gemini-decision-1 on the Gemini API's Decisions endpoint.); Drex 1.5 88 (A public OpenAPI 3.1 document at console.nace.ai/openapi.json, 47 paths on 1 November with POST /v1/systemone, /v1/decisions and GET /v1/models (25).)