GPTZero

Data & ML Infrastructure6 vendorsUpdated Nov 10, 2026gptzero.me Subprocessor list

GPTZero uses 6 subprocessors and infrastructure vendors, including Stripe, Azure and OpenRouter, based on its public subprocessor list. Last checked Nov 10, 2026.

AI Stack · 3

Infrastructure · 3

AI Stack

Model Serving

OpenRouter

84 companies

Unified API gateway for AI models

Code Execution

Modal

70 companies

Serverless ML inference on GPU cloud

AI Observability

Langfuse

36 companies

Open-source LLM engineering platform

Infrastructure

Cloud & Networking

Azure

595 companies

Used for their Azure OpenAI LLM endpoint, for generative AI features

Databases

Supabase

73 companies

User authentication backend as a service

Billing & Payments

Stripe

741 companies

Payment processing API and subscription management

Model labs reached through vendors 1

GPTZero does not list these model providers. Vendors on its list name them on their own subprocessor lists.

OpenAIthroughOpenRouter,Supabase

Changes

Checked Nov 10, 2026Source

This is the first saved copy of GPTZero’s subprocessor list. Added and removed vendors will show here after the next check.

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