Jev 1.14 API

typesafe/jev-1.14
Jev 1.14 is the latest TypeSafe decision model, improved across the board and most of all in languages other than English.
Context
256K tokens
Input
$0.0546 / 1M tokens
Output
Free
Released
Oct 14, 2026

Overview

What Is Jev 1.14?

Jev 1.14 is the second public version of Jev, the System One decision model from TypeSafe AI. Like Jev 1.13, it does not generate text: it returns typed answers — a yes/no with a probability, a choice from a defined set, or a score — with calibrated probabilities for routing, classification and other decision points in an application. It was released on 14 October 2026 and is available on AI/ML API as typesafe/jev-1.14.

What Changed From Jev 1.13

  • Quality: TypeSafe describes 1.14 as better across the board, with the largest gains in languages other than English.
  • Images: image input, experimental in 1.13, is extended in 1.14 and remains marked experimental.
  • Box questions: a new question type, box, asks where something is in an image.

Pinned Version vs the typesafe/jev Alias

typesafe/jev-1.14 always runs version 1.14. The alias typesafe/jev points to the newest Jev release and resolves to 1.14 today, but will move when TypeSafe ships the next version. Use the pinned id when probabilities feed fixed thresholds. Jev 1.14 is also the decision model behind the Jev Router on AI/ML API.

Specifications

  • Developer: TypeSafe AI
  • Release date: 14 October 2026
  • Context window: 262,144 tokens
  • Input: text, images (experimental) — output: typed decisions
  • Question types: noul (yes/no with probability), choice, score, box
  • Endpoint: POST /v1/decisions

Pricing on AI/ML API

Only input is billed, at $0.0546 per 1M tokens — the same rate as Jev 1.13. Jev does not generate text, so there are no output tokens to charge.

Use cases

Routing requests between models or handlers, as in AI/ML API's Jev Router, which uses Jev 1.14 to pick the bucket a chat request belongs to.

Classification and moderation in multilingual products, where TypeSafe reports the largest improvement over 1.13.

Decisions about images: yes/no or choice questions about what an image shows, and Box questions that locate an object in the image.

Scoring content or requests on a defined scale and acting on the score in code, without parsing generated text.

How to use Jev 1.14 API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to typesafe/jev-1.14.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/decisions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "typesafe/jev-1.14",
      "state": "Help! My payments have been failing for 3 days.",
      "questions": {
        "urgent": {
          "type": "noul",
          "instructions": "Is this an urgent support request?"
        }
      }
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/decisions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "typesafe/jev-1.14",
    "state": "Help! My payments have been failing for 3 days.",
    "questions": {
      "urgent": {
        "type": "noul",
        "instructions": "Is this an urgent support request?"
      }
    }
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/decisions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"typesafe/jev-1.14","state":"Help! My payments have been failing for 3 days.","questions":{"urgent":{"type":"noul","instructions":"Is this an urgent support request?"}}}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Jev 1.14 API Pricing

TypePrice
Input
$0.0546 / 1M tokens
Output
Free

Only input is billed, at $0.0546 / 1M tokens. Jev returns decisions rather than generated text, so output is free.

Jev 1.14 vs other models

ModelInputOutputContextBest for
Jev 1.14
This page
$0.0546 / 1M tokens
Free
256K tokens
Typed decisions, multilingual and images
$0.0546 / 1M tokens
Free
256K tokens
Reproducible typed decisions in code
$0.0546 / 1M tokens
Free
256K tokens
Typed decisions inside software
Varies — the answering model's rate
Varies — the answering model's rate
1.05M tokens
Cutting LLM spend without picking a model

Frequently asked questions

Yes. Jev 1.14 is live on AI/ML API as typesafe/jev-1.14, served through the POST /v1/decisions endpoint.

TypeSafe describes 1.14 as better across the board, with the biggest gains in languages other than English. It also extends experimental image input and adds Box questions, which ask where something is in an image.

typesafe/jev-1.14 is pinned to version 1.14. typesafe/jev is an alias for the newest Jev release; it points to 1.14 today and will move to the next version when TypeSafe ships one.

Yes/no with a probability (noul), a choice from a defined set (choice), a score (score) and, new in 1.14, Box questions (box) that locate something in an image.

Input is billed at $0.0546 / 1M tokens, the same as Jev 1.13. Output is free, because Jev returns decisions rather than generated text.

262,144 tokens.

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