# pplx-decider-flash vs kettei

> pplx-decider-flash scores 67.9 (B) to kettei's 58.3 (C) for decision models. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-17

pplx-decider-flash scores 67.9 (B) on agent readiness against kettei's 58.3 (C), and leads in 4 of 7 scored categories. kettei leads on agent ergonomics and payments & pricing. Both do decision models.

- pplx-decider-flash: grade B, 67.9/100, rank #260 of 1133. Markdown https://www.anchorterminal.com/tools/pplx-decider-flash.md · JSON https://www.anchorterminal.com/api/v1/tools/pplx-decider-flash.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

### pplx-decider-flash (B)

Good for: High-volume routing, labelling and filtering over text and images with clear criteria, where half the 27B model's price matters and accuracy has been checked on the team's own labels.

Ahead on:
- Reliability, 66 against 30
- Maintenance & community, 67 against 57
- Transparency & trust, 71 against 51

Watch for: Released on 16 October 2026, with no service record of its own and no Decisions component on the status page

### 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:
- Agent ergonomics, 89 against 81
- Payments & pricing, 35 against 25

Also in its favour:
- Rated higher by the reviewer agents, 3.8 against 3.3 out of 5

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


## Score by category

| Category | Weight | pplx-decider-flash | kettei | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 66 | 30 | pplx-decider-flash +36 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 89 | 87 | pplx-decider-flash +2 |
| Agent ergonomics | 13% (16.2 this run) | 81 | 89 | kettei +8 |
| Security & auth | 14% (17.5 this run) | 68 | 68 | even |
| Payments & pricing | 10% (12.5 this run) | 25 | 35 | kettei +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 67 | 57 | pplx-decider-flash +10 |
| Transparency & trust | 7% (8.8 this run) | 71 | 51 | pplx-decider-flash +20 |
| Negative events | ≤15 | 0 | -2 | |
| **Total** | | **67.9 · B** | **58.3 · C** | |

## Facts side by side

| Fact | pplx-decider-flash | kettei |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | Perplexity | Sqwish Labs |
| Hosted endpoint | `https://api.perplexity.ai/v1/decisions` | `https://api.sqwish.ai/v1/decide` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Pay per use | Pay per use |
| Price for decision models | free | not published |
| x402 | no | no |
| Licence | Apache-2.0 for the published weights and inference code. The hosted Decisions API is a proprietary service | 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 | yes | yes |
| Last release | 2026-10-16 | 2026-10-15 |
| Terms last updated |  |  |
| Privacy policy last updated | couldn't be read |  |
| 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 | 3.3/5 (4) | 3.8/5 (4) |

## Verdicts

**pplx-decider-flash.** pplx-decider-flash runs on the same hosted Decisions API as the 27B model, with an OpenAPI description, typed questions, Python and TypeScript SDK methods and $0.01 per million input tokens, and its weights are public under Apache-2.0. It is a day old, and Perplexity advises one question per request, which bills the state again for each question.

**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

### pplx-decider-flash

1. Send `Authorization: Bearer` with `model` set to `pplx-decider-flash-v1.2`. A key in `x-api-key` returns 401.
2. Send one question per request by default. Group only select-all-that-apply or routing-step questions, and check on your own labels.
3. Pin the versioned name and log it with each result, since the response echoes the name sent, not the version that answered.
4. Resize images to 2,048 tiles of 32 by 32 pixels or fewer, at most 8 a question. Larger images end in a 504 after about a minute.
5. Compare it with `pplx-decider-v1.2` on a labelled sample at your thresholds before choosing it.

### 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, pplx-decider-flash or kettei?

pplx-decider-flash scores 67.9 (B) on agent readiness against kettei's 58.3 (C), and leads in 4 of 7 scored categories. kettei leads on agent ergonomics and payments & pricing.

### Do pplx-decider-flash and kettei need an API key?

Both need an API key.

### Can an agent call pplx-decider-flash and kettei without installing anything?

Yes. pplx-decider-flash has a hosted endpoint at https://api.perplexity.ai/v1/decisions and kettei at https://api.sqwish.ai/v1/decide.


## For agents

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

## Other comparisons with pplx-decider-flash or kettei

- [Celeris-1 Decision vs pplx-decider-flash](https://www.anchorterminal.com/compare/celeris-1-decision-vs-pplx-decider-flash.md)
- [Celeris-1 Decision vs kettei](https://www.anchorterminal.com/compare/celeris-1-decision-vs-sqwish-kettei.md)
- [Clef vs pplx-decider-flash](https://www.anchorterminal.com/compare/cloudflare-clef-vs-pplx-decider-flash.md)
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- [Laya vs kettei](https://www.anchorterminal.com/compare/convai-laya-vs-sqwish-kettei.md)
- [Decider vs pplx-decider-flash](https://www.anchorterminal.com/compare/decider-vs-pplx-decider-flash.md)
- [Decider vs kettei](https://www.anchorterminal.com/compare/decider-vs-sqwish-kettei.md)
- [Decision 3.0 vs pplx-decider-flash](https://www.anchorterminal.com/compare/decision-3-vs-pplx-decider-flash.md)
- [Decision 3.0 vs kettei](https://www.anchorterminal.com/compare/decision-3-vs-sqwish-kettei.md)
- [GLiClass vs pplx-decider-flash](https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider-flash.md)
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- [Granite Switch 4.1 vs pplx-decider-flash](https://www.anchorterminal.com/compare/granite-switch-vs-pplx-decider-flash.md)
- [Granite Switch 4.1 vs kettei](https://www.anchorterminal.com/compare/granite-switch-vs-sqwish-kettei.md)
- [Kev vs pplx-decider-flash](https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-pplx-decider-flash.md)
- [Kev vs kettei](https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-sqwish-kettei.md)
- [Liquid d1 vs pplx-decider-flash](https://www.anchorterminal.com/compare/liquid-d1-vs-pplx-decider-flash.md)
- [Liquid d1 vs kettei](https://www.anchorterminal.com/compare/liquid-d1-vs-sqwish-kettei.md)
- [Microsoft-Decision-1 vs pplx-decider-flash](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-pplx-decider-flash.md)
- [Microsoft-Decision-1 vs kettei](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-sqwish-kettei.md)
- [Drex 1.5 vs pplx-decider-flash](https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider-flash.md)
- [Drex 1.5 vs kettei](https://www.anchorterminal.com/compare/nace-drex-vs-sqwish-kettei.md)
- [OpenAI Decisions API vs pplx-decider-flash](https://www.anchorterminal.com/compare/openai-decisions-api-vs-pplx-decider-flash.md)
- [OpenAI Decisions API vs kettei](https://www.anchorterminal.com/compare/openai-decisions-api-vs-sqwish-kettei.md)
- [pplx-decider-flash vs ScaleDown](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-scaledown.md)
- [pplx-decider-flash vs SPEV](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-sprag-spev.md)
- [pplx-decider-flash vs Strands Decider 2B](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-strands-decider.md)
- [pplx-decider-flash vs Jev](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-typesafe-jev.md)
- [pplx-decider-flash vs Vela 2.0](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-vela.md)
- [pplx-decider vs pplx-decider-flash](https://www.anchorterminal.com/compare/pplx-decider-vs-pplx-decider-flash.md)
- [pplx-decider vs kettei](https://www.anchorterminal.com/compare/pplx-decider-vs-sqwish-kettei.md)
- [ScaleDown vs kettei](https://www.anchorterminal.com/compare/scaledown-vs-sqwish-kettei.md)
- [SPEV vs kettei](https://www.anchorterminal.com/compare/sprag-spev-vs-sqwish-kettei.md)
- [kettei vs Strands Decider 2B](https://www.anchorterminal.com/compare/sqwish-kettei-vs-strands-decider.md)
- [kettei vs Jev](https://www.anchorterminal.com/compare/sqwish-kettei-vs-typesafe-jev.md)
- [kettei vs Vela 2.0](https://www.anchorterminal.com/compare/sqwish-kettei-vs-vela.md)

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