Playground
CommunityJev Demos & Experiments
Open Jev Playground
A Beam-hosted playground for comparing open-source alternatives to Jev and running any of them as an API. You edit a state and typed questions in the browser, then call the same model through an OpenAI-compatible endpoint with a workspace token.
- Format
- Playground
- Reading time
- 2 min
- Published by
- Community
- Author
- Mernit
- Last verified
- Oct 2026
- Capabilities
- Requires API key
Highlights
- Compares the open-source alternatives to Jev in one place and can run any of them as an API.
- The editor holds a state plus typed questions; the sample routes a support message with a choice question.
- Create an account, export BEAM_TOKEN and call an OpenAI-compatible endpoint; curl, Python and JavaScript snippets are offered.
- The curl example posts to https://app.beam.cloud/v1/models/jev/semif/invoke with model jev/semif and the same JSON the playground sends.
Quickstart
bash
curl https://app.beam.cloud/v1/models/jev/semif/invoke \
-H "Authorization: Bearer $BEAM_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"model": "jev/semif",
"state": "My running shoes arrived in the wrong size. Can I swap them for a size 10?",
"questions": { "department": { "type": "choice", "instructions": "Which team should handle this?", "criteria": { "returns": "Exchanges, refunds, wrong or damaged items", "shipping": "Delivery status, delays, lost packages", "billing": "Charges, invoices, payment problems" } } }
}'Watch out
Grounded in the Beam playground page text fetched on 2026-10-15; the meta description is truncated mid-sentence, the hosted model catalog was still loading when the page was captured, and the page does not document pricing or limits for API calls.
Questions about this entry
Short answers drawn from the linked project or page.
One place to try open-source alternatives to Jev: compare them and run any of them as an API. The page pairs a browser editor with hosted endpoints on Beam, and the editor shows the exact request that Run will send.
Choose a model, edit the state and typed questions, and press Run; the response panel shows the same JSON the playground displays. For API use, create an account, grab a workspace token, export BEAM_TOKEN and send the request.
The default editor state is a shoe-exchange message and one choice question asking which team should handle it, with criteria for returns, shipping and billing. The request the page shows uses model jev/semif.
The page says you can integrate any open model into your product with its OpenAI-compatible API, and the step-by-step example sends a JSON body with model, state and questions to app.beam.cloud, authenticated with a Bearer workspace token.
The page presents the open-source alternatives to Jev and a hosted model catalog, but the catalog was still loading when the digest was captured, so the full list is not recorded here. The example calls jev/semif; browse the live page for what is currently hosted.
The page routes API use through a workspace token created with an account, but the captured text does not document pricing, quotas or whether the in-page Run itself needs a sign-in. Check the live page before relying on it.
The meta description describes it as Mernit's Show HN project, hosted on Beam. The captured description is truncated mid-sentence, so this entry does not attribute it further than that.
Reactions & coverage
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