Span-01

RespanDecision model

Span-01 by Respan is a decision model: it answers typed questions with a probability for each allowed answer instead of generating text. Hosted, it costs about $0.0040 per 1,000 decisions.

Pricing

Input (per 1M tokens)

$0.02

Output (per 1M tokens)

$0.00

Per 1,000 decisions

$0.0040

Provider	Input / 1M	Output / 1M
respan	$0.02	$0.00
openrouter	$0.02	$0.00

Cost per 1,000 decisions assumes 200 input tokens per decision.

Specifications

Provider: Respan
Parameters: —
Released: Sep 2026
Open weights: No
Question types: Yes / no
Mechanism: Hosted API
Backbone: —
Jev-compatible request: No
Runs on CPU: —
License: proprietary

Compare Span-01 with…

Span-01 vs amos-1-large—/1M in Span-01 vs amos-1-medium—/1M in Span-01 vs Celeris-1 Decision$0.04/1M in Span-01 vs ScaleDown Classify-1$0.04/1M in Span-01 vs Cloudflare clef—/1M in Span-01 vs Cloudflare clef-flash—/1M in

FAQ

How much does Span-01 cost?

Hosted, Span-01 costs $0.02 per 1M input tokens, about $0.0040 per 1,000 decisions at 200 input tokens each.

What questions can Span-01 answer?

Span-01 answers yes / no questions, returning a probability for each allowed answer.

Is Span-01 well calibrated?

No calibration measurement for Span-01 is recorded yet.

Is Span-01 open weight, and can it run on a CPU?

No, Span-01 is closed and served as an API.

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