Map Jev-shaped gates to Laya checkpoints without breaking production. And know when not to migrate.
Start from your Jev contract
Inventory parallel questions, state shape, thresholds, and escalation rules in your existing TypeSafe client (/learn/jev-typesafe). Note option counts and languages.
That map tells you whether laya-typed-decisions, multilingual Router, or staying on Jev for specific steps is realistic.
Schema mapping
Laya's Python SDK expects question dicts with type choice, score, or noul and criteria blocks. Jev's POST /v1/systemone JSON is similar in spirit but not byte-identical. Plan an adapter layer in your service rather than duplicating business logic in two formats.
Hybrid pattern: local pre-filter
Run Laya on-device or in a sidecar for cheap parallel questions (language detection, coarse routing, game ticks). Send only uncertain or high-stakes rows to hosted Jev. This preserves data minimization while keeping an authoritative cloud path for audit.
Hybrid pattern: environment split
Developers on Apple Silicon use Laya-MLX for fast iteration. Staging and production stay on Jev until you have GPU capacity and MLOps to host Convai checkpoints with monitoring. /learn/where-to-run-jev lists hosted options.
Calibration migration
If you threshold Jev probabilities today, re-fit calibration on Laya outputs before copying numeric cutoffs. Convai documents temperature scaling per question type. Your legacy 0.92 gate may mean something different on open weights.
When to stay on Jev only
Skip migration when you rely on gateway billing, need more than 50 options without tuning, lack GPU ops, or require TypeSafe's supported SLA. Laya is not a moral upgrade. It is a deployment choice.
More in this hub
Laya vs Jev: open weights or a hosted API
Same typed primitives, different deployment. Read this before you rip out a working Jev integration on a Friday afternoon.
Privacy, air-gap, and agents
When local Laya belongs in the agent loop. And how that differs from bolting Jev MCP tools onto a chat model.
Related Jev learn guides
Live demo
Lonely__MH's laya-mlx snake clip shows local typed decisions driving a game loop on Apple Silicon. Not a benchmark, but a useful feel for throughput.
FAQ
- Can I run the same questions on both?
- Yes for experiments. Log disagreements and calibration drift. Do not dual-write production decisions without a clear source of truth.
- Does Vercel AI Gateway support Laya?
- Gateway documentation centers on hosted Jev. Local Laya sits outside that path unless you wrap it in your own HTTP service.