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Jared Palmer: Kev 4B: AI model

Kev 4B is a small open-weight decision model from Jared Palmer: it returns typed, scored answers instead of prose. Reachable from inside Iran through Hormouz.

Context window:
8,192 tokens
Input:
$0.04/1M tokens
Output:
$0/1M tokens
Type:
decisions
  • Structured decisions

Kev 4B is a small open-weight decision model from Jared Palmer, built as a LoRA adapter and pointer head on Qwen3.5-4B-Base and using the same request shape as TypeSafe's Jev. Send a state and typed questions (yes/no, multiple choice or score) and it returns a calibrated probability for each in one forward pass. It is the recommended size in the Kev family and is Apache-2.0 licensed. It reads up to 8K tokens of state per request.

Through Hormouz it is reached at POST /v1/alpha/decisions with your ordinary API key. The request carries a state and the questions, and the reply comes back typed, so your code branches on the numbers instead of parsing a sentence. You pay only for input, at $0.042 per million tokens; the answer itself is free. There is no fixed monthly fee.

Hormouz provides stable access to the model from inside Iran, with no foreign credit card or circumvention tooling required.

Kev 4B is a small open-weight decision model from Jared Palmer, built as a LoRA adapter and pointer head on Qwen3.5-4B-Base and served over the same /v1/systemone contract as TypeSafe's...

Quickstart

curl https://api.hormouz.net/v1/alpha/decisions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "model": "jaredpalmer/kev-4b", "state": { "ticket": "My checkout page shows a blank screen after I click Pay." }, "questions": { "is_bug": { "type": "noul", "instructions": "Is the customer reporting a defect?" }, "team": { "type": "choice", "instructions": "Which team owns this?", "criteria": { "frontend": "Rendering or layout.", "payments": "Checkout or billing." } }, "urgency": { "type": "score", "instructions": "How urgent?", "criteria": ["Next release", "This week", "Blocking revenue"] } } }'

Specs

VendorJared Palmer
TypeScoring & decisions
Context window8,192 tokens
Pricing$0.04/M in · $0.00/M out
APIdecisions

Code example

cURL
curl https://api.hormouz.net/v1/alpha/decisions \
  -H "Authorization: Bearer ng-YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "model": "jaredpalmer/kev-4b", "state": { "ticket": "My checkout page shows a blank screen after I click Pay." }, "questions": { "is_bug": { "type": "noul", "instructions": "Is the customer reporting a defect?" }, "team": { "type": "choice", "instructions": "Which team owns this?", "criteria": { "frontend": "Rendering or layout.", "payments": "Checkout or billing." } }, "urgency": { "type": "score", "instructions": "How urgent?", "criteria": ["Next release", "This week", "Blocking revenue"] } } }'
Python
import requests

resp = requests.post(
    "https://api.hormouz.net/v1/alpha/decisions",
    headers={"Authorization": "Bearer ng-YOUR_API_KEY"},
    json={
  "model": "jaredpalmer/kev-4b",
  "state": { "ticket": "My checkout page shows a blank screen after I click Pay." },
  "questions": {
    "is_bug": { "type": "noul", "instructions": "Is the customer reporting a defect?" },
    "team": { "type": "choice", "instructions": "Which team owns this?",
              "criteria": { "frontend": "Rendering or layout.", "payments": "Checkout or billing." } },
    "urgency": { "type": "score", "instructions": "How urgent?",
                 "criteria": ["Next release", "This week", "Blocking revenue"] }
  }
},
)
answers = resp.json()["answers"]
print(answers["team"]["choice"], answers["is_bug"]["noul"])
JavaScript
const resp = await fetch("https://api.hormouz.net/v1/alpha/decisions", {
  method: "POST",
  headers: {
    Authorization: "Bearer ng-YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
  "model": "jaredpalmer/kev-4b",
  "state": { "ticket": "My checkout page shows a blank screen after I click Pay." },
  "questions": {
    "is_bug": { "type": "noul", "instructions": "Is the customer reporting a defect?" },
    "team": { "type": "choice", "instructions": "Which team owns this?",
              "criteria": { "frontend": "Rendering or layout.", "payments": "Checkout or billing." } },
    "urgency": { "type": "score", "instructions": "How urgent?",
                 "criteria": ["Next release", "This week", "Blocking revenue"] }
  }
}),
});
const { answers } = await resp.json();
console.log(answers.team.choice, answers.is_bug.noul);

Buy the Jared Palmer: Kev 4B API, paid in rial

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FAQ

What is Kev 4B good for?
Typical uses are routing, classification and policy checks with a compact, openly licensed model.
How do I call Kev 4B?
Send POST /v1/alpha/decisions to Hormouz with your API key, a state and a set of typed questions. The response shape is the same as the upstream decisions API, so existing code works by changing the base URL.
How much does Kev 4B cost?
You pay only for input, at $0.042 per million tokens; the answer itself is free. There is no fixed monthly fee.
How do I access Kev 4B from inside Iran?
Create an account on Hormouz and generate an API key. Hormouz provides a stable path to the model from inside Iran, with no foreign credit card or circumvention tooling required.

Updated 2026-10-13