# TypeSafe AI: jev

> The first System One model. Reads a state, answers typed Choice, Score and Noul questions in one call with calibrated probabilities, and generates no text. Closed weights, served by TypeSafe AI.

- Page: https://systemonemodels.ai/typesafe-ai/jev
- API: https://api.systemonemodels.ai/v1/models/typesafe-ai/jev

## Facts

| | |
|---|---|
| Maker | TypeSafe AI (https://systemonemodels.ai/typesafe-ai) |
| Decides | choice, score, noul, classify, route |
| Architecture | jev |
| Context | 32K tokens |
| Licence | proprietary |
| Availability | Hosted API |
| Released | 2026-09-15 |
| Latest version | 1.13.0 |

## Hosted API

- Provider: TypeSafe AI (https://typesafe.ai)
- Docs: https://docs.typesafe.ai/api
- Input: $0.042/MTok · Output: Free

## Model card

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# Jev 1.13

The first System One model. Reads a state, answers typed Choice, Score and Noul questions in one call with calibrated probabilities, and generates no text. Closed weights, served by TypeSafe AI.

Jev is served as a hosted API only; no weights, parameter count or paper have been published. Each request carries a state of up to 32k tokens and a set of questions answered in parallel: Choice over up to 255 options, Score over 2 to 10 levels, and Noul, a yes/no probability. TypeSafe quotes 70–500 ms per request; third-party measurements put the median at 236–276 ms. Pricing is $0.042 per million input tokens, with output free. The waitlist was removed on 20 September 2026.

## What it decides

- **choice** — picks one option from a set
- **score** — places the input on an ordered scale
- **noul** — answers a yes/no question with one calibrated probability
- **classify** — assigns a category from a fixed taxonomy
- **route** — sends the input to one of several destinations

## At a glance

| | |
|---|---|
| Maker | TypeSafe AI |
| Released | 2026-09-15 |
| License | proprietary |
| Reported latency | 70–500 ms (vendor); 236–276 ms p50 measured by third parties |

## Hosted API

Served by **TypeSafe AI** — $0.042/MTok input, $0/MTok output. [Get access](https://typesafe.ai) · [API docs](https://docs.typesafe.ai/api).

## Read more

- [API reference](https://docs.typesafe.ai/api)

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*This page was opened by System One for TypeSafe AI, who can claim the organisation and take it over at any time.*

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From System One Models — https://systemonemodels.ai/ · every System One model: https://systemonemodels.ai/system-one-models