Hosted tool
Model Router
Pick a model tier for a prompt by complexity.
Anonymous: 5 free real-API runs (no signup). Signed in: each run debits prepaid input tokens from your account balance. Upstream TypeSafe keys stay on our servers. Buy tokens / Get API key →
What this tool returns
Live runs call the same hosted decide path as production: typed Choice / Score / Noul answers your code can branch on — not chat prose. Edit the sample state below, run a few anonymous trials, then mirror the fields with a jv_live_ key on POST /api/v1/decide.
- recommended_tier (choice) — recommended_tier
- complexity (choice) — complexity
New here? Read is Jev free? for the no-signup trial limits, then get an API key.
Hosted tool
Edit the sample on the left, then run for typed decisions your code can branch on.
Sample output
- choicerecommended_tierfast · 80%
- choicecomplexitysimple · 78%
Ship this as an API
Same production template over POST /api/v1/decide with a jv_live_ key. Mirror the fields above — start from $5 prepaid packs.