tau-4b

cisimcikDecision modelOpen weights

tau-4b by cisimcik is a decision model: it answers typed questions with a probability for each allowed answer instead of generating text.

Pricing

No hosted price is listed. The weights are open: the cost is your own compute.

Specifications

Provider: cisimcik
Parameters: 4B
Released: Oct 2026
Open weights: Yes
Question types: Choice (one of N options), Score (ordered rubric), Yes / no
Mechanism: Decoder LM with a decision readout
Backbone: cisimcik/cisimcik-base
Jev-compatible request: Yes
Runs on CPU: No
License: apache-2.0
Hugging Face: cisimcik/tau-4b

Compare tau-4b with…

tau-4b vs amos-1-large—/1M in tau-4b vs amos-1-medium—/1M in tau-4b vs Celeris-1 Decision$0.04/1M in tau-4b vs ScaleDown Classify-1$0.04/1M in tau-4b vs Cloudflare clef—/1M in tau-4b vs Cloudflare clef-flash—/1M in

FAQ

How much does tau-4b cost?

tau-4b has no hosted price listed; its weights are open, so the cost is the compute you run it on.

What questions can tau-4b answer?

tau-4b answers choice (one of n options), score (ordered rubric), yes / no questions, returning a probability for each allowed answer.

Is tau-4b well calibrated?

No calibration measurement for tau-4b is recorded yet.

Is tau-4b open weight, and can it run on a CPU?

Yes, tau-4b has open weights. It needs a GPU to run at useful speed.

Data as of 2026-10-14. Source: Metatext decision-model catalogue, 2026-10-14 (Hugging Face). Pricing is per 1M tokens (USD); confirm with the provider before production use.