jeff

Made by Logan Markewich.

jeff is an independent open reproduction of the Jev decision-model approach, by Logan Markewich. Benchmarked in several versions; see the scores below.

Licence

MIT

Pricing

Free (self-hosted)

Independent benchmarks

• JevBench (jeff (Logan Markewich, GLiFormer 400M)): 30.58. Source
• DecideBench (Jeff Gemma4-E2B (self-hosted)): 80.8%. Source
• DecideBench (Jeff Qwen3.5-0.8B (self-hosted)): 71.2%. Source
• DecideBench (Jeff Qwen3.5-2B (self-hosted)): 70%. Source

Links

• GitHub