UseNull

Privacy-first AI API

Private AI. Zero Trace.

Access a full model lineup through one API endpoint with strict privacy controls and SDK-compatible calls.

Get Started FreeView Pricing

Why UseNull

Zero Logging

Prompts and responses are never stored. We keep only minimal billing metadata needed for account credits and analytics.

SDK Compatible

Use existing chat SDK workflows. Replace base URL and key, keep the same call shape.

Decentralized + Anonymized

Choose fully private models or anonymized pass-through models under one API.

Credit Wallet Billing

Prepay credits, track per-request charges, and optionally enable automatic top-up.

How it works

  1. Create an account and generate an API key.
  2. Add account credits and optionally enable auto top-up.
  3. Send chat completions to the UseNull API endpoint.
  4. Track usage and per-request charges in your dashboard.

Models

Model NamePrivacy Level
null-miniPrivate
null-fastPrivate
null-smartPrivate
null-reasonPrivate
null-codePrivate
null-largePrivate
null-visionPrivate
null-opusAnonymized
null-sonnetAnonymized
null-haikuAnonymized
null-gpt4Anonymized
null-gpt-miniAnonymized

Full pricing and live model availability are published by the API in /v1/models.

Free

$0

$1 signup credits included.

VIP Pro

$9.99

Monthly recurring credits plus prepaid top-ups.

VIP Unlimited

$49.99

Largest monthly credit bundle plus prepaid top-ups.

FAQ

Is my data really private?

Yes. Prompts and responses are not persisted in app logs, DB, Redis, or analytics sinks.

Can I use existing SDK code?

Yes. Use the same request format and update base URL + API key.

Which models are available?

Private: null-mini, null-fast, null-smart, null-reason, null-code, null-large, null-vision
Anonymized: null-opus, null-sonnet, null-haiku, null-gpt4, null-gpt-mini