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Jev 1.13
★ NEW
by OpenCode Zen
CLOSEDHOSTEDAPI
RANKED #254 OF 338 ASSISTANTS · OVERALL #399 OF 7,156 · VIBE SCORE 5.4 · 25 VOICES
System One model for fast, typed probabilistic decisions over text or structured state
HAPPY10.0
5 mentions
SAD-
0 mentions
VIBE TRAJECTORY
26 weeks · 46 voices
TOO QUIET
Not enough weekly voices to call a trend yet.
PREFER OPEN SOURCE? THE CROWD HAS PICKS
Jev 1.13 is closed, so you rent it. These open-weight models can genuinely stand in for it. Download once, own forever.
DeepSeek V4 FlashWHAT THE INTERNET SAYS
Not enough discussion about Jev 1.13 yet to call it. We found 25 posts but people did not say much either way.
23 POSTS · 2 COMMENTS · REDDIT · GITHUB · HACKER NEWS · DEV.TO · BLOG
PEOPLE LOVE
- No fan mail yet. The crowd is still warming up.
PEOPLE COMPLAIN ABOUT
- No complaints yet. The internet is still looking for one. Suspicious.
LOOKING FOR AN ALTERNATIVE?
Other models the crowd has fully reviewed, starting with text models like this one.
- Apertus v1.5 70B7.4Infomaniak · Text2.5k VOICESCOMPARE
Muse Spark 1.3> SOURCES (12)
- BLOG · 2026-09-21 · 32 UPVOTESJev introduces a new shape of LLM - System One, aka Decision Models
Last week TypeSafe AI unveiled Jev , their first example of a new category of model that they are calling "System One models" (I'm with Maggie Appleton, I think "decision models" is a better name for these). Jev is an interesting variant on the usual LLM…
- HACKER NEWS · 2026-09-21 · 3 UPVOTESJev 1.13 Jaggedness
Jev 1.13 Jaggedness
- HACKER NEWS · 2026-09-22 · 3 UPVOTESThe Jagged Frontier of Jev 1.13
The Jagged Frontier of Jev 1.13
- REDDIT · 2026-09-20 · 2 UPVOTESJev might be the next frontier for improving roleplays
Jev might be the next frontier for improving roleplays
- REDDIT · 2026-09-24 · 1 UPVOTESOpus 5.5 co-designed and ran a benchmark and evaluation of jev-1.13
Opus 5.5 co-designed and ran a benchmark and evaluation of jev-1.13
- GITHUB · 2026-09-21 · 0 UPVOTESStructured-decision transport (TypeSafe Jev 1.13) behind an Ollama fallback (#3421)
Structured-decision transport (TypeSafe Jev 1.13) behind an Ollama fallback (#3421)
- GITHUB · 2026-09-23 · 0 UPVOTESNew post (draft): system-one-router — a System One model picks the LLM for every prompt (EN/FR/IT)
New post (draft): system-one-router — a System One model picks the LLM for every prompt (EN/FR/IT)
- GITHUB · 2026-09-24 · 0 UPVOTESAdd native Jev desktop control
Add native Jev desktop control
- GITHUB · 2026-09-23 · 0 UPVOTESfeat(evals): judge bake-off harness for Jev and Sonnet 5 (16.3)
feat(evals): judge bake-off harness for Jev and Sonnet 5 (16.3)
- GITHUB · 2026-09-23 · 0 UPVOTESAdd "No Chain of Thought Required" case study
Add "No Chain of Thought Required" case study
- GITHUB · 2026-09-24 · 0 UPVOTES[OPIK-8510] [BE] feat: support Jev via OpenRouter Decisions API in online evaluation rules
[OPIK-8510] [BE] feat: support Jev via OpenRouter Decisions API in online evaluation rules
- GITHUB · 2026-09-25 · 0 UPVOTESRun Jev via OpenRouter; Binance mirror and headless dry-run loop
Run Jev via OpenRouter; Binance mirror and headless dry-run loop