lev
lev is available now for agents, classification, and json / tool use with open-source; evaluate it while provider pricing coverage matures.
- Family
- lev
- Released
- 2026-09-24
- Parameters
- 4B
- Openness
- Open source
- License
- Apache 2.0OSI-approvedCommercial use: permitted
- Weights
- Available
- Code
- Unknown
- Training
- Fine-tuned
No tracked provider token pricing is available yet.
About
lev is Interfaze's open decision model, a rank-32 LoRA adapter with a candidate-path head on Qwen3.5-4B. Given a state and a set of yes/no ('noul'), choice, and score questions, it reads each answer from logits it already computed, in one forward pass with zero output tokens, and returns calibrated probabilities over exactly the options supplied. Label-token readout handles yes/no, 2–10-level scores, and choice lists of up to several hundred options; options are read in two orders and averaged, with per-bucket temperatures.
Provider price ladder
No tracked provider token pricing is available for this model yet.
Capabilities
Benchmark peer barsfor Agents
No task-mapped benchmark peers are available for this model yet.
Benchmark scores(1)
Migration checks
No linked migration route is available for this model yet.
API versions
interfaze-ai/levlevLevNo tracked provider token pricing is available yet.