Jev 1.13 free is currently the easiest way to call TypeSafe’s Jev decision model from real code without paying: OpenCode Zen serves a limited-time jev-1.13-free model alongside the paid jev-1.13, on the same endpoint. It’s method three in my free-Jev video above. Here’s exactly how to use it, how it compares with the paid version, and how to make sure your workflows don’t break the day the free window closes.
Key takeaways
- Model ID
jev-1.13-freeon OpenCode Zen’s System One endpointhttps://opencode.ai/zen/v1/systemone— free input and output, for a limited time. - The paid twin
jev-1.13is $0.042 per million input tokens with free output, on the same endpoint. - You need an OpenCode Zen account and API key — billing details are required even though the free model costs nothing.
- No end date is published — build with an automatic fallback to paid jev-1.13 so nothing breaks.
What Jev 1.13 free is
Jev is TypeSafe’s fast decision model: instead of writing paragraphs, it answers yes/no, choice and score questions in a fraction of a second (my Jev agent guide covers how). Version 1.13 is the build OpenCode Zen serves, and alongside the normal paid model it offers jev-1.13-free — the same endpoint, no charge, for a limited time.
This matters because the other big free route, the Vercel AI Gateway window, closed on 25 September 2026. For builders who want to test Jev in real workflows without a bill, jev-1.13-free is now the main door — alongside the no-code playground covered in my access guide.
How to use Jev 1.13 free
- 1. Sign in to OpenCode Zen, add billing details, and copy your API key.
- 2. In OpenCode, run
/connect, choose OpenCode Zen and paste the key — or call the endpoint directly from your own code. - 3. Point requests at
https://opencode.ai/zen/v1/systemonewith the model set tojev-1.13-free. - 4. Ask your questions in Jev’s shapes: yes/no, pick-one-of-options, or score — and read the probabilities back.
| jev-1.13-free | jev-1.13 | |
|---|---|---|
| Input price | Free | $0.042 per million tokens |
| Output price | Free | Free |
| Availability | Limited time, no end date given | Ongoing |
| Endpoint | opencode.ai/zen/v1/systemone | Same |
| Training on inputs | Not stated for the free model | Not used for training, per OpenCode |
Community tools already handle the switch for you: the open-source jev-gateway defaults to jev-1.13-free and automatically falls back to paid jev-1.13 once the free model stops answering — a pattern worth copying.
Want this working in your business, not just bookmarked? Building Jev decision workflows that run for free or near-free is exactly the kind of thing we build together inside the AI Profit Boardroom — 3,400+ members, four live calls a week, daily Q&A, the Agent OS and Hermes kits, and a 30-day roadmap so you ship instead of watch.
Prefer it mapped 1-on-1 first? Book a free strategy session and we’ll plan it for your exact situation.
Using Jev 1.13 free safely
- Build the fallback in now. When the free model stops responding, retry on jev-1.13 — at $0.042 per million input tokens with free output, most decision workloads cost cents.
- Keep sensitive data on the paid model. OpenCode says paid inputs aren’t used for training; it doesn’t say the same for the free model.
- Pin the version. Scores can shift between Jev versions, so re-check your thresholds if you move off 1.13.
- Start with one job. Lead scoring, support routing or content scoring are the fastest wins — see Jev automation.
Dated 30 September 2026: model IDs, endpoint and pricing are from OpenCode Zen’s documentation; “limited time” is their wording, with no end date announced. Check the Zen docs for current status before relying on it.
The bottom line on Jev 1.13 free
Jev 1.13 free is the jev-1.13-free model on OpenCode Zen: free input and output on the same System One endpoint as paid jev-1.13, for a limited time. Grab a Zen key, point your code at it, and wire in an automatic fallback to paid jev-1.13 so the day the free window closes is a non-event.
FAQ: jev 1.13 free
What is jev-1.13-free?
A limited-time free version of TypeSafe’s Jev 1.13 decision model on OpenCode Zen, served from the same System One endpoint as the paid jev-1.13.
How do I use Jev 1.13 for free?
Get an OpenCode Zen API key (billing details required), then call https://opencode.ai/zen/v1/systemone with the model set to jev-1.13-free, or connect Zen inside OpenCode with /connect.
How long will jev-1.13-free be free?
OpenCode says it’s available for a limited time and hasn’t published an end date.
How much does paid jev-1.13 cost?
$0.042 per million input tokens, with output free, on OpenCode Zen.
What happens when the free Jev 1.13 ends?
Requests to jev-1.13-free will stop working; tools like jev-gateway automatically fall back to paid jev-1.13, and you should build the same fallback.
Are my inputs used for training on the free model?
OpenCode states paid jev-1.13 inputs aren’t used for training but doesn’t state the same for the free model, so keep sensitive data on the paid one.
Two ways I can help from here. If you want the community, the templates and the weekly momentum, join the AI Profit Boardroom — it’s where your Jev automations gets built with 3,400+ members doing the same.
If you want a personal plan first, grab a free strategy session and bring your questions — no pitch-fest, just the roadmap.
About Julian Goldie
I’m Julian Goldie — SEO agency founder, best-selling author, and one of the most-watched AI SEO educators on YouTube with 394K+ subscribers. I’ve spent 10+ years in SEO and link building, hold a 100% Job Success Score on Upwork, and run a community of 75K+ members learning AI-powered SEO. I test everything on my own sites first — what you read here comes from those tests. Join the AI Profit Boardroom for the daily builds, or book a free strategy session to talk through yours.
Related reading
Last updated September 2026. This page is a living guide to jev 1.13 free — the facts here move fast and I update it as they do.
