How much does it actually cost to run this?

The entry copy records the homepage restating 64k context, $0.042 per million input tokens, and free output, with jev-1.13.0 as the pinned card. Note the caveat: those figures track the launch card, so recheck against current pricing before sizing a workload.

Does it cover the failure modes developers hit in practice?

Partly, and it is the most useful part. The entry copy documents a jaggedness-modes page, a 255-option cap on a single Choice, a pattern of scoring first then choosing from a shortlist when a catalog is too large, and guidance to read confidence before any automatic side effect.

Does it show a path from playground to a real request?

Yes, and that path is the entry's strongest claim: paste a ticket into the console playground, add a Noul for urgency and a Choice for the owning team, then the same map becomes a POST to /v1/systemone or a TypeSafeClient.system_one call. Still third-party guidance.

What topics does the Jev wiki cover?

Its navigation lists System One Models, Primitives, State, Confidence, API, Jaggedness, Patterns and Demos, and it is available in many languages including English, French, Spanish, Polish, Turkish, Russian, Ukrainian, Japanese, Korean, Chinese and Thai.

What does the Wikiracing example show?

Wikiracing chooses the next Wikipedia link toward a target page, where cardinality runs from hundreds to thousands of links. Because a single Choice only accepts 255 options, the demo scores first and then chooses among a shortlist, a two-stage pattern for catalogs larger than the Choice cap.

What does the Doom demo cost?

The launch post's Doom demo feeds a text description of the game state, not the framebuffer. At about 10 queries per second the cost lands around $7 per hour on the published input price with output free, which the wiki calls a demo figure rather than a required production QPS.

CommunityJev Guides & Articles

Jev wiki

Q: Is this wiki official TypeSafe documentation?

No, and the entry copy says so. It is a third-party site, not vendor documentation, whose figures track the launch card and may lag vendor updates. Useful as a map, but resolve anything load-bearing against the official docs.

An independent wiki on TypeSafe's System One model: primitives, pricing, latency bands, console playground links, and ecosystem pointers.

See highlights

Open jevai.wiki

Format: Docs
Published by: Community
Last verified: Oct 2026

Tagscommunity docs explainer

Works forJev for Classification

Used inJev for Software & DevTools

Highlights

Homepage restates 64k context, $0.042 per million input tokens, free output, and jev-1.13.0 as the pinned card.
Walkthrough sends readers to console.typesafe.ai/playground then POST /v1/systemone or TypeSafeClient.system_one.
Notes customer data is not used to train Jev and that the same weights serve every account.

Watch out

Third-party site, not TypeSafe documentation. Figures track the launch card and may lag vendor updates.

Questions about this entry

Short answers drawn from the linked project or page.

Reactions & coverage

Posts, threads, and videos about this entry from around the web.

Hacker News: Simon Willison's overview of Noul, Choice, and Score, and where a decision model fits.

benwerd53 pointsJev introduces a new shape of LLMRead the thread on Hacker News

Hacker News: swyx posts the Latent Space interview with Diogo Almeida.

swyx4 pointsJev: System One Models for Prod, Not God – With Diogo Almeida, CEO, TypeSafe AIRead the thread on Hacker News

X: Diogo Almeida in five minutes

X: LLMs vs. Jev, clearly explained

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InfoQ: Jev returns typed probabilities

InfoQ's 1 October 2026 news brief on Jev: a parallel pass over typed questions, TypeSafe's published price and latency, and where to read the jaggedness notes.