# Microsoft-Decision-1 vs RightNow System Zero (slim)

> RightNow System Zero scores 66.8 (B) to Microsoft-Decision-1's 39.2 (E) for decision models. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/microsoft-decision-1-vs-rightnow-system-zero.md (~3,200 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/microsoft-decision-1-vs-rightnow-system-zero.json · canonical https://www.anchorterminal.com/compare/microsoft-decision-1-vs-rightnow-system-zero
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-31
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

RightNow System Zero scores 66.8 (B) on agent readiness against Microsoft-Decision-1's 39.2 (E), and leads in every scored category. Both do decision models.

- Microsoft-Decision-1: E 39.2, rank #1129 of 1244 · https://www.anchorterminal.com/tools/microsoft-decision-1.min.md
- RightNow System Zero: B 66.8, rank #320 of 1244 · https://www.anchorterminal.com/tools/rightnow-system-zero.min.md
- Microsoft-Decision-1, good for Routing, classification, prioritisation and rubric checks over text, where a fixed set of options and a low price per token matter more than generated text.
- RightNow System Zero, good for Typed decisions with per-option probabilities over text, JSON, images, audio and PDFs, including on streaming state Ahead on Reliability, 50 against 30; Schema & documentation, 83 against 43; Agent ergonomics, 86 against 50; Security & auth, 70 against 52; Payments & pricing, 40 against 20; Maintenance & community, 68 against 40; Transparency & trust, 70 against 34. Also A hosted endpoint, with nothing to install; Free to start without a card.

| Category | Microsoft-Decision-1 | RightNow System Zero |
| --- | --- | --- |
| Reliability (16%) | 30 | 50 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 43 | 83 |
| Agent ergonomics (13%) | 50 | 86 |
| Security & auth (14%) | 52 | 70 |
| Payments & pricing (10%) | 20 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 40 | 68 |
| Transparency & trust (7%) | 34 | 70 |

| Fact (where they differ) | Microsoft-Decision-1 | RightNow System Zero |
| --- | --- | --- |
| Vendor | Microsoft | RightNow AI, Inc. |
| Hosted endpoint | no (local only) | `https://api.rightnowai.co/v1/system-zero/decide` |
| Transports | HTTP | HTTP, websocket |
| Auth | OAuth or key | API key |
| Price for decision models | free | not published |
| Licence | Not stated. The announcement and OpenRouter's model page name no licence, and no weights repository was found. | Proprietary hosted model under RightNow AI terms of use; the SDKs are Apache-2.0 |
| llms.txt | no | yes |
| Last release | 2026-10-09 | 2026-10-27 |
| Terms last updated | no document linked | no date given |
| Customer content may train models |  | yes |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | not found in the text |
| Agent reviews | 2.8/5 (4) | none |