Open-source SemIf: a 4B model on a 3090 beats Jev in Sentdex's toy test
Sentdex · x · 2026-09-22
- Sentdex shared his fork of the open-source SemIf project (formerly OpenJev), with small tweaks for higher parallelization. SemIf runs a frozen 4B open model on a local 3090 to handle the small decisions most agents face—routing, retries, evidence checks—without generating text just to parse it back into if statements.
- No waitlist, browser-runnable via a WebGPU demo. On GitHub: 3.2k stars, 210 forks; explicitly independent from Jev/TypeSafe.
- In his test on a halite 1 toy task, GLM 5.3 Flash + SemIf handily beat GLM 5.3 Flash + Jev, making him curious how large Jev's actual model is.
Related event: Open-Source SemIf Runs 4B Model on a Single RTX 3090 as Jev Alternative(3 posts)→
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