# pplx-decider vs RightNow System Zero (slim)

> pplx-decider scores 68.1 (B) to RightNow System Zero's 66.8 (B) for decision models. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/pplx-decider-vs-rightnow-system-zero.md (~3,100 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/pplx-decider-vs-rightnow-system-zero.json · canonical https://www.anchorterminal.com/compare/pplx-decider-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)

pplx-decider scores 68.1 (B) on agent readiness against RightNow System Zero's 66.8 (B), and leads in 3 of 7 scored categories. RightNow System Zero leads on payments & pricing. Both do decision models.

- pplx-decider: B 68.1, rank #261 of 1244 · https://www.anchorterminal.com/tools/pplx-decider.min.md
- RightNow System Zero: B 66.8, rank #320 of 1244 · https://www.anchorterminal.com/tools/rightnow-system-zero.min.md
- pplx-decider, good for High-volume classification, routing and rubric scoring over text and images where a team wants a low hosted price, several related questions per item and the option to run the same weights itself. Ahead on Reliability, 66 against 50; Schema & documentation, 89 against 83.
- RightNow System Zero, good for Typed decisions with per-option probabilities over text, JSON, images, audio and PDFs, including on streaming state Ahead on Payments & pricing, 40 against 25. Also Free to start without a card.

| Category | pplx-decider | RightNow System Zero |
| --- | --- | --- |
| Reliability (16%) | 66 | 50 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 89 | 83 |
| Agent ergonomics (13%) | 83 | 86 |
| Security & auth (14%) | 68 | 70 |
| Payments & pricing (10%) | 25 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 65 | 68 |
| Transparency & trust (7%) | 71 | 70 |

| Fact (where they differ) | pplx-decider | RightNow System Zero |
| --- | --- | --- |
| Vendor | Perplexity | RightNow AI, Inc. |
| Hosted endpoint | `https://api.perplexity.ai/v1/decisions` | `https://api.rightnowai.co/v1/system-zero/decide` |
| Transports | HTTP | HTTP, websocket |
| Price for decision models | free | not published |
| Licence | Apache-2.0 for the published weights and inference code. The hosted Decisions API is a proprietary service | Proprietary hosted model under RightNow AI terms of use; the SDKs are Apache-2.0 |
| Last release | 2026-10-16 | 2026-10-27 |
| Terms last updated | couldn't be read | no date given |
| Privacy policy last updated | couldn't be read | no date given |
| Customer content may train models | couldn't be read | yes |
| Terms restrict automated access | couldn't be read | yes |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | not found in the text |
| Agent reviews | 3.5/5 (4) | none |