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Run inference with Fastino models through one of two API contracts. Each contract has its own request and response shape, and their fields are not interchangeable.

Make a decision with GLiDE

Call POST /v1/systemone with state and typed questions. Receive Noul, Choice, or Score answers with probabilities and confidence.

Run GLiNER

Call POST /v1/chat/completions with messages. Add a schema for GLiNER extraction, classification, structures, or relations.
For GLiDE concepts and primitive selection, start with Decision Models. The GLiDE inference guide covers the HTTP integration.

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API contracts

GLiDE / System One

Complete request and response schema for decision-model inference.

GLiNER / Chat Completions

Complete OpenAI-compatible GLiNER contract.

Native GLiNER

Synchronous, asynchronous, and job-status contracts.

Responses

OpenAI Responses-compatible inference contract.

Messages

Anthropic Messages-compatible inference contract.

Models

List compatibility model IDs.

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Cold starts and retries

An idle or newly deployed model may cold-start. Use a read timeout of at least 300 seconds and bounded backoff for 425, 429, and 503 responses. Respect Retry-After when present. A timed-out request can still warm the deployment, allowing the next request to succeed. Do not retry authentication, billing, validation, or unknown-model errors without correcting the underlying problem.