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Span-01 Lite

RespanDecision model

Span-01 Lite 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 Free per 1,000 decisions.

Pricing

Input (per 1M tokens)
$0.00
Output (per 1M tokens)
$0.00
Per 1,000 decisions
Free
ProviderInput / 1MOutput / 1M
respan$0.00$0.00
openrouter$0.00$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

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FAQ

How much does Span-01 Lite cost?

Hosted, Span-01 Lite costs $0.00 per 1M input tokens, about Free per 1,000 decisions at 200 input tokens each.

What questions can Span-01 Lite answer?

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

Is Span-01 Lite well calibrated?

No calibration measurement for Span-01 Lite is recorded yet.

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

No, Span-01 Lite 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.