Claim ledger
Facts most likely to change are listed with their source and the date they were last checked. Check the source before production use.
ClaimSourceLabel and checked date
Model ID
jev-1.13.0, with jev-latest and jev-preview as aliasesModel specificationsDocumented · Sep 20, 202664k-token context, 32k for state plus the longest question; text-only inputModel specificationsDocumented · Sep 20, 2026
250,000 tokens per second and 1,200 requests per minute, adjusting dynamicallyModel specificationsDocumented · Sep 20, 2026
Endpoint, Bearer authentication, request and answer fields, error statuses, retry guidanceAPI documentationDocumented · Sep 20, 2026
Choice supports up to 255 options; Score takes 2 to 10 levelsAPI documentationDocumented · Sep 20, 2026
Large speed and cost advantages on suitable structured tasksTypeSafe launch postReported by the provider · not reproduced here
Agent-harness and evaluator experiments by buildersLangChain guide and linked postsReported by the authors · not general benchmarks
Jev through BeatAPINot yet publishedNot live verified · integration in progress
All primary sources
- Jev introduction
- Jev API documentation
- Jev model specifications and limits
- Jev on Vercel AI Gateway
- Cloudflare model documentation for Jev
- LangChain: building and evaluating a harness with Jev
- DataCamp independent Jev explainer
Specifications can change. Dynamic claims such as model IDs, pricing, rate limits, context size, and provider availability should be checked against the linked primary source before production use.
Evidence labels
- Documented: stated in a primary product or API source.
- Reported: a performance or business claim published by its owner but not independently reproduced here.
- Illustrative: an example payload or architecture created to explain a pattern. Its numbers are invented.
- Live verified: observed in an authenticated end-to-end request with matching usage and logs.
Update policy
When a primary source changes or a claim is found to be wrong, the page and its checked date are updated together. See About for how pages are written and who maintains them.