Pricing — Credit Packs, Pay Once
Start with 200 free credits. When they run out, buy a one-time pack — no subscription, no monthly commitment, and credits stay valid for 12 months.
Credit packs
5,000 credits
For trying Jev on real work.
- 5,000 credits — 1 per standard evaluation, 3 per large one
- Credits valid for 12 months
- Failed evaluations are refunded automatically
- API access with your own key
12,000 credits
For running Jev every week.
- 33% cheaper per evaluation than the small pack
- 12,000 credits — 1 per standard evaluation, 3 per large one
- Credits valid for 12 months
- Failed evaluations are refunded automatically
- API access with your own key
Need more than 12,000 evaluations, or higher rate limits for a team? Get in touch and we'll put together a custom pack.
Listing an app in our directory?
A paid submission skips the queue: $9 for a review within 48 hours, or $29 to also pin your app to the top of the catalog for 30 days.
Before you buy
Know what an evaluation costs before you pick a pack.
We measured Jev token by token. Read the numbers, then decide whether your 200 free credits cover the job.
What One Jev Evaluation Costs, Measured
We made 11 real Jev calls across every state size and question count the app allows, fitted the token model, and measured the cost: $0.000012 to $0.000377 per evaluation.
Read the guideWhat a System One Model Is, and What It Is Not
System One models return typed decisions and calibrated probabilities instead of generated text. What that means, how RLCD differs from RLHF, and where the independent evidence is still thin.
Read the guideDesigning Questions Jev Can Answer: Choice, Score and Noul
The three Jev question types, Choice, Score and Noul, decide what your code can branch on. What each returns, their limits, and how to write atomic questions, sharpen rubrics and gate agent actions on confidence.
Read the guideJev as a Judge: What One Yes/No Question Catches, and What It Misses
Can a model that never writes text be your LLM judge? The best public test says one Jev question ranks backdoored code at AUROC 0.976 for about $0.04 per thousand checks. Here is where that holds, and where it breaks.
Read the guide