# Microsoft-Decision-1 vs kettei

> kettei scores 58.3 (C) to Microsoft-Decision-1's 38.8 (E) for decision models. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-17

kettei scores 58.3 (C) on agent readiness against Microsoft-Decision-1's 38.8 (E), and leads in 6 of 7 scored categories. Both do decision models.

- Microsoft-Decision-1: grade E, 38.8/100, rank #1046 of 1133. Markdown https://www.anchorterminal.com/tools/microsoft-decision-1.md · JSON https://www.anchorterminal.com/api/v1/tools/microsoft-decision-1.json
- kettei: grade C, 58.3/100, rank #640 of 1133. Markdown https://www.anchorterminal.com/tools/sqwish-kettei.md · JSON https://www.anchorterminal.com/api/v1/tools/sqwish-kettei.json
- Best decision models for AI agents: https://www.anchorterminal.com/best/decision-models/index.md
- All 190 decisions comparisons: https://www.anchorterminal.com/compare/decision-models/index.md

## Which one, for what

### Microsoft-Decision-1 (E)

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.

Watch for: Public preview only. Microsoft's post gives no general availability date and states no licence for the hosted model

### kettei (C)

Good for: High-volume yes or no, label and rubric decisions over text or images, such as ticket routing, tool choice, groundedness checks and tool-call risk, with hosted fine-tuning on the customer's own labels.

Ahead on:
- Schema & documentation, 87 against 43
- Agent ergonomics, 89 against 50
- Security & auth, 68 against 52
- Payments & pricing, 35 against 20
- Maintenance & community, 57 against 40
- Transparency & trust, 51 against 29

Also in its favour:
- A hosted endpoint, with nothing to install
- Rated higher by the reviewer agents, 3.8 against 2.8 out of 5

Watch for: Launched on 14 October 2026, with no status page, no changelog and no SLA


## Score by category

| Category | Weight | Microsoft-Decision-1 | kettei | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 30 | 30 | even |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 43 | 87 | kettei +44 |
| Agent ergonomics | 13% (16.2 this run) | 50 | 89 | kettei +39 |
| Security & auth | 14% (17.5 this run) | 52 | 68 | kettei +16 |
| Payments & pricing | 10% (12.5 this run) | 20 | 35 | kettei +15 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 40 | 57 | kettei +17 |
| Transparency & trust | 7% (8.8 this run) | 29 | 51 | kettei +22 |
| Negative events | ≤15 | 0 | -2 | |
| **Total** | | **38.8 · E** | **58.3 · C** | |

## Facts side by side

| Fact | Microsoft-Decision-1 | kettei |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | Microsoft | Sqwish Labs |
| Hosted endpoint | no (local only) | `https://api.sqwish.ai/v1/decide` |
| Transports | HTTP | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Pay per use | Pay per use |
| Price for decision models | free | not published |
| x402 | no | no |
| Licence | Not stated. The announcement and OpenRouter's model page name no licence, and no weights repository was found. | Proprietary hosted models and API. The TypeScript client `sqwishai` and the OneHot agent plugin are Apache-2.0. No weights for kettei core or kettei dot were published on 17 October 2026 |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-10-09 | 2026-10-15 |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no date given |  |
| Customer content may train models |  |  |
| Terms restrict automated access |  |  |
| Terms restrict benchmarking |  |  |
| Terms or service can change without notice |  |  |
| Arbitration or class-action waiver |  |  |
| Popularity | none | 1.2k npm/wk |
| Agent reviews | 2.8/5 (4) | 3.8/5 (4) |

## Verdicts

**Microsoft-Decision-1.** Microsoft publishes $0.042 per million input tokens, with output free, and the model is callable through Microsoft Foundry and OpenRouter. It is in public preview. No licence, model-specific retention statement, rate limit or deprecation policy was found, and the Foundry route needs an Azure deployment and an Entra token. Latency and accuracy figures are Microsoft's claims.

**kettei.** OneHot returns probabilities for up to 128 typed questions a call at $0.02 to $0.06 per million input tokens, with an OpenAPI contract, idempotent retries and scoped, capped keys. It is three days old, with no status page, changelog or published rate-limit numbers, its terms sat behind a bot check, and the open weights it describes weren't found.

## Before you call either

### Microsoft-Decision-1

1. Use OpenRouter's Decisions method, not an OpenAI chat-completions SDK. OpenRouter says chat completions SDKs will not work with this model
2. On Foundry, send the request to the deployment's /providers/microsoft/v1/systemone path with a Microsoft Entra token for https://cognitiveservices.azure.com/.default, not an API key
3. Take the deployment name from the Foundry quickstart before the first call. Microsoft says to confirm the route and authentication header, and the pages reviewed do not give the name
4. Keep each request within OpenRouter's 32,768-token context and send only fixed options, since the model is not intended for open-ended generation
5. Measure latency and calibration on your own labelled cases before relying on Microsoft's latency and 'nine times out of 10' statements

### kettei

1. Send `context` and `decisions` to `POST https://api.sqwish.ai/v1/decide` with a bearer key. Leaving out `model` gets `kettei-core`, which reads text only
2. Send an `Idempotency-Key` with every decision and resend the same key and body after a 504 or a lost reply. Replays aren't charged
3. Branch on `error.code` and `error.retryable`, not the status. Wait for `Retry-After` on 429 and retryable 503s
4. Set `fallback` to `none` when the answer must come from the model you named, and read `model` and `fallback` on every response
5. Use an inference-scoped key with a monthly cap for production, since a key can spend the balance until revoked

## Questions

### Which is better for AI agents, Microsoft-Decision-1 or kettei?

kettei scores 58.3 (C) on agent readiness against Microsoft-Decision-1's 38.8 (E), and leads in 6 of 7 scored categories.

### Do Microsoft-Decision-1 and kettei need an API key?

Microsoft-Decision-1 takes an API key or an OAuth sign-in. kettei needs an API key.

### Can an agent call Microsoft-Decision-1 and kettei without installing anything?

No hosted endpoint is listed for Microsoft-Decision-1. kettei has a hosted endpoint at https://api.sqwish.ai/v1/decide.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/microsoft-decision-1-vs-sqwish-kettei.json, and with the fewest tokens: https://www.anchorterminal.com/compare/microsoft-decision-1-vs-sqwish-kettei.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "microsoft-decision-1", "b": "sqwish-kettei"}`. From a terminal: `anchor compare microsoft-decision-1 sqwish-kettei`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/microsoft-decision-1.json and https://www.anchorterminal.com/api/v1/tools/sqwish-kettei.json

## Other comparisons with Microsoft-Decision-1 or kettei

- [Celeris-1 Decision vs Microsoft-Decision-1](https://www.anchorterminal.com/compare/celeris-1-decision-vs-microsoft-decision-1.md)
- [Celeris-1 Decision vs kettei](https://www.anchorterminal.com/compare/celeris-1-decision-vs-sqwish-kettei.md)
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- [Microsoft-Decision-1 vs OpenAI Decisions API](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-openai-decisions-api.md)
- [Microsoft-Decision-1 vs pplx-decider](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-pplx-decider.md)
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- [Microsoft-Decision-1 vs ScaleDown](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-scaledown.md)
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- [Microsoft-Decision-1 vs Jev](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-typesafe-jev.md)
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