Claude still owns generation and long reasoning
Claude is a general model. It writes, codes, uses tools, and can spend tokens on intermediate reasoning. If a person has to read the result, or if the answer space is not known in advance, Claude (or another LLM) stays in the loop.
TypeSafe’s own positioning is that System One models sit beside this class of systems, not on top of the same leaderboard.
Jev owns the typed gate
Before Claude edits a file, sends an email, or spends a long thinking pass, ask Jev whether the action is in policy, which queue it belongs to, or how severe the incident is. Those questions have labels you can write down today.
A schema-constrained Claude call can approximate a choice. It still generates tokens, can retry on parse failure, and is priced like a language model. Jev’s interface is the decision.
A practical split
Use Jev to route “easy / needs Claude / needs a human”. Use Claude only on the middle bucket. Track fallback rate. If Jev sends almost everything to Claude, your questions are too vague or your threshold is too timid.
- Jev: classification, scores, allow/deny probabilities.
- Claude: writing, coding, tool use, extended reasoning.
- Do not ask Jev to draft the Claude prompt in prose; keep prompt assembly in code.
FAQ
Should I replace Claude with Jev?
No. Replace the expensive, fuzzy if-statements you currently send to Claude. Keep Claude for the work that needs language, tools, or extended thinking.
Is Jev cheaper than Claude?
On published list prices, Jev input is $0.042 per million tokens and output is free. Claude input is much higher and you also pay for output tokens. The fair comparison is the same task with the same review policy, not a raw token sticker.