Von
Von by wfzyx is a decision model: it answers typed questions with a probability for each allowed answer instead of generating text. It scores 8.2 on the Jev Decision Index (rank 145).
Pricing
No hosted price is listed. The weights are open: the cost is your own compute.
Specifications
- Provider
- wfzyx
- Parameters
- 400M
- Released
- Sep 2026
- Open weights
- Yes
- Question types
- Choice (one of N options), Score (ordered rubric), Yes / no
- Mechanism
- Cross-encoder (NLI)
- Backbone
- ModernBERT-large NLI head
- Jev-compatible request
- No
- Runs on CPU
- Yes
- License
- Apache 2.0
- Hugging Face
- wfzyx/von
Benchmarks
- Jev Decision IndexECE 0.216
- 8.2
Jev Decision Index: public 13.9, ECE 0.216, Brier 0.771. Lower ECE means its probabilities can be taken at face value.
Self-reported by the publisher
The model's own claims, often on its own sets or a self-run copy of a public suite. Not independently verified and never ranked alongside measured results.
- Jev Decision Index public suite (self-run)Self-reportedDecision Index public balanced skill, edition 0.2.1 kit (release-v2.1), self-run
- 13.7
Speed & latency
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FAQ
How much does Von cost?
Von has no hosted price listed; its weights are open, so the cost is the compute you run it on.
What questions can Von answer?
Von answers choice (one of n options), score (ordered rubric), yes / no questions, returning a probability for each allowed answer.
Is Von well calibrated?
On the Jev Decision Index its expected calibration error (ECE) is 0.216; below about 0.05, a stated 80% confidence is right roughly 80% of the time.
Is Von open weight, and can it run on a CPU?
Yes, Von has open weights. It is small enough to run on a CPU.
Data as of 2026-10-14. Source: Metatext System One registry (metatext.io/system-one). Pricing is per 1M tokens (USD); confirm with the provider before production use.