## Open Alternative to Jev Open-source System One models: typed, calibrated decisions from any open-weights LLM, in one forward pass. An open alternative to the idea behind TypeSafe's Jev, running on your own GPU with models you already have. Python package open-alternative-jev, import name so1 ("System One"). No text is generated: the model reads the state once and every question is answered from the next-token distribution at its own position, restricted to the options you give. ## Results Qwen3.6-27B (bitsandbytes 8-bit), one H200 MIG slice with 35 GB, Hugging Face Transformers. Every…