Jev AI

Model directory

Jev AI models

Jev AI has a guide for 23 decision models. This page lists all of them in one place: TypeSafe’s Jev by pinned version, the moving names jev-latest and jev-preview and the release each one runs today, the other models you can run in the Jev AI playground, guides to decision models we do not host, and the retired Jev-Omni. Each entry links to the full guide.

Open the playgroundHow to access Jev

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Run Jev 1.14 right here

Edit the example or paste your own text, then run it. Sign in to run: new accounts get 20 welcome credits, and a failed run costs nothing.

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Support ticket triage · Jev 1.14

1 Input

Hi, this is the third time I am writing. Our payouts have failed every day since Monday and my team cannot pay suppliers. I already re-entered the bank details twice. If this is not fixed today we will have to move to another provider.

2 Questions

  • Choice Which team should handle this ticket?
  • Yes / No Does the customer need a response today?
  • Score How frustrated is the customer?
  • Yes / No Does the customer threaten to leave or switch providers?

Which Jev release each model name runs

jev-latest and jev-preview are moving names that point at a pinned release, as on TypeSafe’s models page. Jev AI sends jev-latest to that release’s own ID on every upstream route, so no host can lag behind TypeSafe.

Model nameRuns onWhat it is
jev-latestjev-1.14.0The default model in the Jev AI playground and API. Pin a version instead when your results must not change after a new release.
jev-previewjev-1.14.0TypeSafe’s preview name: a new Jev release appears behind it first. Jev AI sends it to TypeSafe directly.

Jev by TypeSafe

One guide per pinned Jev release: what changed, context window, limits, pricing on Jev AI and benchmark standing.

Jev 1.14.0by TypeSafeRuns as: jev-latestjev-previewReleased as jev-preview on October 14, 2026: the new box question type, experimental images and 262k context behind TypeSafe’s danger-zone headers, with the largest gain in multilingual decisions.Read the guide →Jev 1.13.0by TypeSafeThe previous Jev release, still available pinned: version, 64k context, rate limits, pricing and JevBench standing.Read the guide →

Other models on Jev AI

Decision models you can run in the Jev AI playground with the same account and credits as Jev.

Clef & Clef Flashby CloudflareCloudflare’s Clef and Clef Flash: typed classification with probabilities, in the playground and through the Jev AI API.Read the guide →Clef-Omniby CloudflareCloudflare’s multimodal decision model for text, images, audio and video. In the Jev AI playground for images and WAV or MP3 audio.Read the guide →GPT-6 Lunaby OpenAIThe model behind OpenAI’s Decisions API, in public beta. Takes the same request as Jev, images included, in the playground and the API.Read the guide →RightNow System Zeroby RightNow AIRightNow AI’s decision model. Takes the same request as Jev with text, JSON, up to 4 images and one PDF, in the playground and the API.Read the guide →Liquid d1.1 & d1-ultraby Liquid AILiquid AI’s hosted decision models d1.1 and d1-ultra. Same request as Jev with text and JSON, in the playground and the API, plus the open d1-2B weights.Read the guide →Mercury Decideby InceptionInception’s decision model, in early access. Same request as Jev in the playground and the API, with our head-to-head against Jev.Read the guide →Laya English & MultilingualTwo beta models, Laya English and Laya Multilingual, for yes/no, choice and score questions about short text.Read the guide →

Decision models we do not host

Open-weights and hosted alternatives to Jev, with their own claims, our tests where we ran them, and how to run each one yourself.

Microsoft-Decision-1by MicrosoftMicrosoft’s hosted decision model on Foundry and API aggregators: what Microsoft claims, and our same-day test against Jev.Read the guide →pplx-deciderby PerplexityPerplexity’s Apache-2.0 27B decision model: its own panel, a clinical claim examined, and our HaluEval test against Jev.Read the guide →Jeevesby PostHogPostHog’s MIT-licensed 9B decision model that reasons before it answers, with our test on a Mac against Jev.Read the guide →Kevby Jared PalmerApache-2.0 Jev-style models from 0.8B to 27B on Qwen3.5 and 3.8, with a TypeSafe-compatible API and a fine-tuning skill.Read the guide →Winnow-12Bby EldanRingA Gemma 4 12B fine-tune that makes Jev-style decisions, chats and reads images from one llama.cpp-based server on a 16 GB GPU.Read the guide →Cygnetby blockbrainA recipe rather than a trained model: stock Gemma 4 12B on vLLM with an MIT shim that reads one answer letter per decision.Read the guide →decider-4bby MapikaMapika’s Apache-2.0 rebuild of the System One model class on Qwen3.5-4B-Base, behind TypeSafe’s wire format.Read the guide →JevK5by allebeeAn Apache-2.0 open-weight Jev alternative: Qwen3.5-4B with a distilled LoRA that answers in one forward pass.Read the guide →Imajev-4Bby Mohit GargAn Apache-2.0 decision model on Qwen3.5-4B that answers Jev-style questions about text and up to two photos.Read the guide →djevby MaisaMaisa’s decision model on Google’s DiffusionGemma, a hosted preview that also reads images and live camera input.Read the guide →SemIfby TheoLeeCJThe project formerly called OpenJev: MIT-licensed typed option probabilities read from a frozen Qwen3.5-4B.Read the guide →OpenJevby razorback16 / CodivAt least ten unrelated projects share the name. The guide lists them, then explains the Jev-compatible DiffusionGemma drop-in.Read the guide →OmniJevA Qwen3.5-based visual decision model in 0.8B, 2B and 4B sizes for screenshots, images and sampled video.Read the guide →

Retired

Models that no longer run on Jev AI. Their guides stay up as a reference.

Jev-OmniRetiredby akhilaaa3An independent open-weights classifier on Gemma 4 12B for text, images and video, not made by TypeSafe. Offline on Jev AI since October 19, 2026.Read the guide →

Where to go next

What is Jev?How a System One model answers typed questions with probabilities.Jev APICall Jev and the other API models on Jev AI with one key.JevBench resultsHow Jev and the open decision models rank on one benchmark.Where to run JevTypeSafe and the other hosts that serve Jev.

This list follows the model pages on Jev AI. When a new guide is published or jev-latest moves to a new release, this page changes with it.