Spawning ai.txt

In progress

A proposed machine-readable opt-out convention for commercial AI training via an `ai.txt` file.

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Website
site.spawning.ai/spawning-ai-txt
Latest tracked evidence
Aug 28, 2025Improved crawler-control post published
Last checked
Jul 15, 2026
Profile updated
Jul 15, 2026
Primary approach
Preference signal
Practical force
Voluntary signalIt only affects actors that detect and honor the signal; it does not itself prevent reuse.
Pipeline
Collect / Train / Retrieve
Status rationale
Publicly documented, but still emerging or not fully deployed.

Enforcement

Voluntary preference signal. Communicates a requested condition or restriction to automated systems.

It only affects actors that detect and honor the signal; it does not itself prevent reuse.

Catalog status describes public availability, not legal validity, adoption, or proven effectiveness.

What it is

The ai.txt approach from spawning.ai introduces an optional file to express commercial text-and-data-mining preferences to AI crawlers and tools.

Spawning ai.txt publishes or proposes a machine-readable preference signal for web content across the collection, training, and retrieval stages. Site operators publish the file at a predictable location for participating tools to find. The signal communicates requested conditions; compliance depends on discovery, interpretation, and voluntary support by downstream systems. Public materials describe an in-progress proposal or implementation; the newest dated source in this profile is “Improved crawler-control post published” (August 28, 2025). These details describe the published mechanism and evidence, not a finding about legal validity, adoption, or effectiveness.

Limitations

An ai.txt file does not itself block access. Spawning communicates preferences to organizations using its API; other data miners must discover, parse, and choose to respect the file.

Evidence trail

Adoption signals

No public adoption figure found.