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这份清单怎么维护，Jev 能做什么、不能做什么，以及截图的出处。

• Type safe is not the same as correct. A schema-valid answer can still be confidently wrong. The "cannot hallucinate" claim means no out-of-schema output, nothing more.
• On the vendor's own four-workflow eval Jev lands around 68 percent, close to mid-tier LLMs. Keep irreversible actions behind a threshold and a human.
• It cannot count, do arithmetic, reason about dates, or produce a value that is not in your option list. Ask it to pick from a deck, never to name a card.
• Accuracy drops as the state fills with unrelated content. Curating what you send is your job, and it is most of the work.
• The vendor publishes its known failure modes on the model jaggedness page linked below. Read it before you pick your first threshold.
• Access is a waitlist. Open replicas and third-party gateways exist below if you cannot wait, or would rather not depend on one vendor.

• Endpoint: POST https://api.typesafe.ai/v1/systemone with a model, a state, and a map of questions.
• Model alias: jev-latest, currently jev-1.13.0.
• Questions: Choice picks one of up to 255 options you define, Score places the state on a scale you describe, Noul is a calibrated yes/no probability. All questions in a request are scored in parallel against the same state.
• Input: text or JSON state. No images, audio, or video yet.
• Price: $0.042 per million input tokens; output tokens are free.
• Limits: 250,000 tokens per second, 1,200 requests per minute, 32k tokens per request, all subject to change during early access.
• Latency: 70 to 500 ms end to end, vendor reported.
• Training: RLCD, reinforcement learning for calibrated decisions. Weights and architecture are unpublished.
• Also served by Vercel AI Gateway, Cloudflare Workers AI, OpenRouter (beta), and Netlify AI Gateway, none of which need the TypeSafe waitlist.