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  1. Models
  2. Decisions

Jev Latest

API docs

An alias that routes to the latest TypeSafe Jev System One decision model. Use /v1/decisions directly, point the official TypeSafe SDK at the /api base URL for /api/v1/systemone compatibility, or pass a questions response format through Chat Completions, Messages, or Responses; Jev returns typed answers with calibrated probabilities instead of generated text.

Added Sep 18, 2026

Pricing

Auto routing · per 1M tokens
Input
$0.042
Output
Free
Compare provider prices

Specifications

Context window
32K
Image input
No

API request

Send your application state and typed questions to POST /api/v1/decisions. Each answer comes back with its probabilities.

{
  "model": "typesafe/jev-latest",
  "state": "Customer message: I was charged twice for the same order.",
  "questions": {
    "team": {
      "type": "choice",
      "instructions": "Which team should handle this message?",
      "criteria": {
        "billing": "Payments, refunds or invoices",
        "technical": "Bugs or errors in the product"
      }
    }
  }
}
Decisions API docs

Providers

Auto routing is available for this model. Explicit provider selection is not available.

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Reliability

Related decision models

Compare Jev Latest with similar models from the same provider or model family.

Jev 1.14

typesafe/jev-1.14

TypeSafe's Jev 1.14 (jev-1.14.0) returns typed decisions for routing, classification, scoring, and yes/no judgments, with improved multilingual performance. Use /v1/decisions, TypeSafe SDK compatibility through /api/v1/systemone, or a questions response format through Chat Completions, Messages, or Responses. Text and JSON input only on this route, with 64k tokens per request and 32k per question. Experimental images, Box localization, and extended context are not enabled.

Jev 1.13

typesafe/jev-1.13

TypeSafe's Jev 1.13 is a System One decision model for routing, classification, scoring, and other application decision points. Use /v1/decisions directly, point the official TypeSafe SDK at the /api base URL for /api/v1/systemone compatibility, or pass a questions response format through Chat Completions, Messages, or Responses; Jev returns typed answers with calibrated probabilities instead of generated text.

eu/jev Jeff 1.0.0

eu-jev/eu-jeff-1.0.0

Bevel's Winnow-12B fine-tune for Choice, Noul and Score decisions, with inference in Germany. Use /v1/decisions or /v1/systemone, or the typed questions format through Chat Completions, Messages and Responses. Supports text and JSON, eight questions per request, up to 64 Choice options, and 2–10 Score levels. Output is free. The latest ID follows new releases; version 1.0.0 is pinned. USD pricing uses a fixed conversion of the provider's EUR tariff. Personal data requires a DPA with the provider.

eu/jev Jeff Latest

eu-jev/eu-jeff-latest

Bevel's Winnow-12B fine-tune for Choice, Noul and Score decisions, with inference in Germany. Use /v1/decisions or /v1/systemone, or the typed questions format through Chat Completions, Messages and Responses. Supports text and JSON, eight questions per request, up to 64 Choice options, and 2–10 Score levels. Output is free. The latest ID follows new releases; version 1.0.0 is pinned. USD pricing uses a fixed conversion of the provider's EUR tariff. Personal data requires a DPA with the provider.

Kev 9B

jaredpalmer/kev-9b

Jared Palmer's Kev 9B, hosted by Gradiated, answers typed Choice, Score and Noul questions about text or JSON state without generating text. Text input only, with an 8,192-token context. Use the Decisions or System One API, or a questions response format through Chat Completions, Messages or Responses. Input costs $0.03 per million tokens, cached input $0.006 per million, and output is free.

Rune 26B-A4B

surogate/rune-26b-a4b

Surogate's Rune 26B-A4B is a text-only decision model for classification, scoring and yes/no judgments. It returns Choice, Score and Noul answers with calibrated probabilities, with up to 256 questions per request, 208 choice options and 2–10 score levels. Use /v1/decisions or /v1/systemone; typed questions are also supported through Chat Completions, Messages and Responses. The model has a 262,144-token context window, subject to local request admission limits. It does not generate conversational text or reasoning, and does not support tools, images or streaming. Only input tokens are billed, with a lower rate for cached input.