# Jev alternatives: 11 decision models compared

> Eleven Jev alternatives with dated facts: Laya, Cloudflare Clef, Kev, OpenAI Decisions API, Von, and more. Adoption, licenses, prices, benchmarks.

Last verified: 2026-10-12.

Hosted TypeSafe Jev is the default System One API for many agent stacks, but it is not the only way to score Choice, Score, and Noul questions in one forward pass. This hub lists eleven comparison pages we maintain in 2026: Laya on the existing learn hub plus ten dedicated /alternatives guides. The table order is editorial as of 2026-10-12, informed by GitHub stars, Hugging Face downloads, and on-site interest, but not a single-metric sort. Row eleven (Von) is an explicit editorial speed pick. We label vendor-reported benchmarks separately from independent Decision Index Full scores from the public snapshot regenerated on 2026-10-10.

## Ranked alternatives

1. [Laya](https://jev.aitools.fyi/learn/laya-vs-jev/compare): Apache 2.0 checkpoints; Self-host only; DI Laya vs Jev benchmarks guide (vendor vs independent splits)
2. [Cloudflare clef](https://jev.aitools.fyi/alternatives/cloudflare-clef): Weights on HF; serve via Workers AI; $0.24 per M input tokens (vendor list, 2026-10-12); DI 53.08 (Decision Index 0.3.1, snapshot 2026-10-10; independent harness, not vendor-only)
3. [Kev](https://jev.aitools.fyi/alternatives/kev): Apache 2.0; Self-host (kev.serve); DI 58.78 (Decision Index 0.3.1, snapshot 2026-10-10; independent harness, not vendor-only)
4. [OpenAI Decisions API](https://jev.aitools.fyi/alternatives/openai-decisions-api): Hosted beta only; gpt-6-luna (vendor, beta): $0.10 per M input tokens (vendor list, 2026-10-12); DI Not on public Decision Index board in our snapshot
5. [Perplexity pplx-decider](https://jev.aitools.fyi/alternatives/perplexity-pplx-decider): Apache 2.0 weights; $0.02 per M input tokens (vendor list, 2026-10-12); DI 62.75 (Decision Index 0.3.1, snapshot 2026-10-10; independent harness, not vendor-only)
6. [Mapika decider](https://jev.aitools.fyi/alternatives/mapika-decider): Apache 2.0; Self-host (decider.serve); DI 25.8 (Decision Index 0.3.1, snapshot 2026-10-10; independent harness, not vendor-only)
7. [GLiNER2.5 Decide](https://jev.aitools.fyi/alternatives/fastino-gliner-decide): Apache 2.0; Self-host; DI 9.24 (Decision Index 0.3.1, snapshot 2026-10-10; independent harness, not vendor-only)
8. [SemIf](https://jev.aitools.fyi/alternatives/semif): Open research weights; Self-host (openjev.com demos); DI Not listed for SemIf in Decision Index snapshot
9. [CLM 8B](https://jev.aitools.fyi/alternatives/clm-8b): Apache 2.0; Self-host; DI 6.24 (Decision Index 0.3.1, snapshot 2026-10-10; independent harness, not vendor-only)
10. [Liquid d1](https://jev.aitools.fyi/alternatives/liquid-d1): LFM license weights; Self-host; DI 40.08 (Decision Index 0.3.1, snapshot 2026-10-10; independent harness, not vendor-only)
11. [Von](https://jev.aitools.fyi/alternatives/von): Apache 2.0; Self-host; DI Not listed on Decision Index public board in our snapshot

## FAQ

### What counts as a Jev alternative?

Any engine that answers typed decision questions (Choice, Score, Noul) over structured state without generating open-ended chat. That includes hosted System One APIs, open checkpoints with compatible HTTP servers, and research stacks like SemIf. General LLM classifiers are out of scope for this hub.

### Why is Laya first in the table if this site covers Jev?

Row one is an editorial choice: Laya has the largest GitHub and Hugging Face footprint among open decision models we track, and many teams evaluate it alongside hosted Jev. Our Laya vs Jev compare guide is independent writing; we are not Convai or TypeSafe.

### How should I read Decision Index numbers?

Decision Index is a third-party harness (edition 0.3.1) that scores public benchmark slices. It is useful for directional ranking but not a substitute for your own labelled data. Vendor blog tables may use different splits; we mark those as vendor-reported in each alternative page.

### Why is Von in the table as a runner-up?

Von sits at row eleven as an editorial speed pick with strong Hugging Face downloads, not because it outranked Liquid d1 on every signal we watch. Read the Von vs Jev page before you treat it as a full migration target.

### Can I mix hosted Jev with an open model?

Yes. A common pattern is a local open model for high-volume pre-filters and hosted Jev for escalation, large option sets, or compliance workflows. See migration sections on Kev, decider, and Laya pages for minimal SDK diffs.

### Are Cloudflare clef and clef-flash the same product?

They are sibling Workers AI models with different price points and Decision Index scores. This hub's clef page focuses on the standard clef SKU; clef-flash is noted in facts when you need a cheaper flash tier.

### Is OpenAI Decisions API production ready?

OpenAI describes Decisions API as a public beta with a Luna-class decision model. Treat pricing, model names, and SLAs as vendor beta terms until your account team confirms otherwise.

### How often is this hub updated?

We refresh GitHub stars, Hugging Face downloads, hosted price list entries, and Decision Index snapshot scores on the date shown as last verified. Always confirm contracts and model cards before you ship.

## Sources

- [TypeSafe docs: System One / Jev](https://docs.typesafe.ai/?ref=jev.aitools.fyi)
- [Decision Index public data (edition 0.3.1)](https://huggingface.co/spaces/multimodalart/jev-decision-index/resolve/main/data/v03.json?ref=jev.aitools.fyi)
- [Hugging Face: convaiinnovations/laya](https://huggingface.co/convaiinnovations/laya?ref=jev.aitools.fyi)
- [GitHub: jaredpalmer/kev](https://github.com/jaredpalmer/kev?ref=jev.aitools.fyi)
- [Cloudflare Workers AI: clef model](https://developers.cloudflare.com/workers-ai/models/clef/?ref=jev.aitools.fyi)
- [OpenAI community: Decisions API beta](https://community.openai.com/t/decisions-api-is-now-available-in-public-beta/1403877?ref=jev.aitools.fyi)
- [Perplexity community: pplx-decider v1.1](https://community.perplexity.ai/t/pplx-decider-v1-1-27b-our-updated-open-weights-multimodal-decision-model-is-now-available/6286?ref=jev.aitools.fyi)
- [GitHub: Mapika/decider](https://github.com/Mapika/decider?ref=jev.aitools.fyi)
- [GitHub: wfzyx/von](https://github.com/wfzyx/von?ref=jev.aitools.fyi)

Canonical: https://jev.aitools.fyi/alternatives
Markdown: https://jev.aitools.fyi/alternatives.md