Jev versus edge decisions: a practical comparison
Edge decisions run next to the user (CDN workers, on-device). Jev weights are not a browser WASM download in public docs. Cloudflare Workers AI exposes typesafe/jev as a door — still their inference, with a 32k context card we fetched (narrower than TypeSafe’s 64k request budget). Vendor cards disagree; believe the door you call.
Unofficial channel-aware compare. Matrix: channels compared. docs.typesafe.ai. No keys.
Comparison scope
True on-device / closed-loop edge (privacy, offline) is not Jev. “We called Jev from a Worker” is still a remote model with network and vendor limits.
Criteria that decide the architecture
| Axis | Jev (System One) | Edge decisions |
|---|---|---|
| Offline / on-device | No | Wins |
| Worker call to Jev | Possible via CF door | Your edge |
| Context card | Door-specific (vendor) | Your binary |
| PII locality | Leaves the edge unless ZDR/contract says else | Stays local |
Decision quality and control
If the reason you wanted edge was “data never leaves the PoP,” a Jev HTTP call may violate that story. Re-read Legal and the door’s DPA.
Integration trade-offs
Use edge for cache, auth, and deterministic gates. Call Jev only when the extra hop is allowed. Do not mix typesafe/jev ids with jev-1.13.0.
TypeSafe’s public models page lists jev-1.13 at $0.042 per million input tokens with output tokens free — a vendor claim, not a jev.pro measurement. Confirm on the models page before you bid.
When each approach fits
Prefer Jev when
- A Worker is just a convenient place to call a documented door
Prefer Edge decisions when
- You need offline or strict data locality
Edge for locality; Jev for language when policy allows the hop.
What this page does not claim
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Open replicas are not Jev (see /open/openjev).
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Schema-safe output is not the same as factual correctness.
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No independent bake-off numbers live here.
FAQ
Is Workers AI “Jev at the edge”? It is a Cloudflare-documented door. Context and pricing are Cloudflare’s cards.
Can I embed Jev in the browser? Not as TypeSafe’s hosted model. Do not treat SemIf/OpenJev as Jev.
Disclaimer
This is an independent unofficial site and is not affiliated with TypeSafe AI; official documentation is available at https://docs.typesafe.ai. Never treat jev.pro as TypeSafe official documentation. We do not sell, issue, or proxy API keys.
Hub: Comparisons. Siblings: vs centralized decisions, channels compared, serverless channel. Canonical: https://docs.typesafe.ai.
Sources
Public TypeSafe or adjacent documentation only. No private claims.