# Decider vs Microsoft-Decision-1 (slim)

> Decider scores 69.5 (B) to Microsoft-Decision-1's 39 (E) for decision models. Microsoft-Decision-1 is cheaper for decision models, $0 against $0 per 1M tokens. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/decider-vs-microsoft-decision-1.md (~2,700 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/compare/decider-vs-microsoft-decision-1.json · canonical https://www.anchorterminal.com/compare/decider-vs-microsoft-decision-1
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-10

Decider scores 69.5 (B) on agent readiness against Microsoft-Decision-1's 39 (E), and leads in 6 of 7 scored categories. Microsoft-Decision-1 leads on security & auth. Both do decision models. Microsoft-Decision-1 is cheaper for decision models, $0 against $0 per 1M tokens.

- Decider: B 69.5, rank #181 of 954 · https://www.anchorterminal.com/tools/decider.min.md
- Microsoft-Decision-1: E 39, rank #921 of 954 · https://www.anchorterminal.com/tools/microsoft-decision-1.min.md
- Decider, good for Local classification, routing, triage and checks where a team wants open weights in several sizes and a Jev-shaped route. Ahead on Reliability, 90 against 30; Schema & documentation, 78 against 43; Agent ergonomics, 80 against 50; Payments & pricing, 60 against 20; Maintenance & community, 87 against 40; Transparency & trust, 46 against 32. Also No key needed to call it; Open source.
- 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. Ahead on Security & auth, 52 against 38. Also Cheaper for decision models, $0 against $0 per 1M tokens.

| Category | Decider | Microsoft-Decision-1 |
| --- | --- | --- |
| Reliability (16%) | 90 | 30 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 78 | 43 |
| Agent ergonomics (13%) | 80 | 50 |
| Security & auth (14%) | 38 | 52 |
| Payments & pricing (10%) | 60 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 87 | 40 |
| Transparency & trust (7%) | 46 | 32 |

| Fact (where they differ) | Decider | Microsoft-Decision-1 |
| --- | --- | --- |
| Vendor | Mark Marosi (Mapika) | Microsoft |
| Auth | None | OAuth or key |
| Pricing | Free | Pay per use |
| Licence | Apache-2.0 (code and weights) | Not stated. The announcement and OpenRouter's model page name no licence, and no weights repository was found. |
| Last release | 2026-10-07 | 2026-10-09 |
| Privacy policy last updated | no document linked |  |
| Popularity | 1.1k stars, 2.7k PyPI/wk | none |