OpenAI API

Why the API tier differs from ChatGPT

The single most misunderstood point about OpenAI is that the API and ChatGPT are governed by different data rules. On the API, your inputs and outputs are not used to train OpenAI models by default — there is nothing to opt out of. On consumer ChatGPT (Free/Plus), conversations may be used for training unless you disable it. If your team pasted code or customer data into ChatGPT assuming "OpenAI does not train on my data," that assumption only holds for the API.

Practical implications

• You own the output, but you also own the liability. Generated text that infringes copyright or violates the Usage Policies is your responsibility, not OpenAI's.
• Redistribution is conditional. You can build products on top of the API, but you cannot present raw model output as a competing base model or use it to train one.
• For regulated data (health, finance, PII), request a Zero Data Retention arrangement — the standard API still retains data for up to 30 days for abuse monitoring.

When to choose it

OpenAI API is the safe default for general-purpose generation and tool use. If your priority is the lowest latency on open models, or strict EU data residency, evaluate Groq or a Vertex/Bedrock-hosted alternative instead.