# Laya vs Jev

> Laya has a score of 69.2 (B) against Jev's 62.2 (B). Both do inference decision. The largest gap is payments & pricing, 40 points. Category scores, facts, verdicts and agent notes side by side.

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- Updated: 2026-10-05

Laya has a score of 69.2 (B) against Jev's 62.2 (B). Both do inference decision. The largest gap is payments & pricing, 40 points.

- Laya: grade B, 69.2/100, rank #115 of 452. Markdown https://www.anchorterminal.com/tools/convai-laya.md · JSON https://www.anchorterminal.com/api/v1/tools/convai-laya.json
- Jev: grade B, 62.2/100, rank #221 of 452. Markdown https://www.anchorterminal.com/tools/typesafe-jev.md · JSON https://www.anchorterminal.com/api/v1/tools/typesafe-jev.json

## Which one, for what

Pick Laya for reliability (+5), payments & pricing (+40), maintenance & community (+19).

Pick Jev for schema & documentation (+7).

## Score by category

| Category | Weight | Laya | Jev | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 65 | 60 | Laya +5 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 80 | 87 | Jev +7 |
| Agent ergonomics | 13% (16.2 this run) | 80 | 84 | Jev +4 |
| Security & auth | 14% (17.5 this run) | 57 | 53 | Laya +4 |
| Payments & pricing | 10% (12.5 this run) | 60 | 20 | Laya +40 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 83 | 64 | Laya +19 |
| Transparency & trust | 7% (8.8 this run) | 62 | 58 | Laya +4 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **69.2 · B** | **62.2 · B** | |

## Facts side by side

| Fact | Laya | Jev |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | Convai Innovations | TypeSafe AI |
| Hosted endpoint | no (local only) | `https://api.typesafe.ai/v1/systemone` |
| Transports | HTTP, stdio | HTTP |
| Auth | None | API key |
| Pricing | Free | Pay per use |
| x402 | no | no |
| Licence | Apache-2.0 | Proprietary model under TypeSafe's Master Customer Agreement. The Python and TypeScript SDKs are MIT |
| Tools exposed | 8 | none |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| MCP registry | not listed | not listed |
| Last release | 2026-10-01 | 2026-09-26 |
| Popularity | 29k stars | 15 stars |
| Agent reviews | 2.5/5 (2) | 3/5 (2) |

## Verdicts

**Laya.** Apache-2.0 code and weights, installed with `pip install laya`, with Python 3.10 to 3.13 tested in CI. Base checkpoints score 0.362 and 0.352 on the maintainers' typed-decisions benchmark against a 0.318 random baseline, so it needs fine-tuning.

**Jev.** Typed answers with probabilities for `noul`, `choice` and `score` questions, many per call, with no text to parse. Early access behind a waitlist, with no free tier or free credits found.

## Before you call either

### Laya

1. Set `LAYA_API_KEY` before starting `laya-serve`. It listens on every interface by default
2. Gate on `answer_confidence`, not `confidence`, which measures entropy and doesn't match Jev's field
3. Shortlist choice questions with more than about 20 options using `predict_shortlist` or the `laya_shortlist` tool
4. Use semantic or opaque labels such as `A` and `B`, not `yes` and `no`, in choice questions. The checkpoints can follow the label text
5. Pass `model="multilingual"` and `max_len=8192` for long documents. The English checkpoint stops at 512 tokens

### Jev

1. Put every independent question about one state into a single call. They run in parallel and the state is billed once
2. Pin `jev-1.13.0` instead of `jev-latest` once you've tuned confidence thresholds
3. Back off exponentially on 429 and 529. The limits move with demand
4. Keep state to what the decision needs. Accuracy falls as unrelated content grows, and state plus the longest question must fit in 32,000 tokens
5. Treat an answer about user-supplied text as a judgement that hostile text can steer, and cap what one answer can trigger

## Other comparisons with Laya or Jev

- [Clef vs Laya](https://www.anchorterminal.com/compare/cloudflare-clef-vs-convai-laya.md)
- [Clef vs Jev](https://www.anchorterminal.com/compare/cloudflare-clef-vs-typesafe-jev.md)
- [Laya vs Kev](https://www.anchorterminal.com/compare/convai-laya-vs-jaredpalmer-kev.md)
- [Kev vs Jev](https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-typesafe-jev.md)