OpenAI
Trial / one-time credits
GPT-5 family
Card required
Limited / inconsistent trial; not reliable for volume.
| Detail | Information |
|---|---|
| Models | GPT-5 family |
| Free quota | data-sharing tokens |
| Payment card needed? | Yes |
| Tier type | Trial / one-time credits |
| Signup URL | https://platform.openai.com |
| Last verified | August 2026 |
How to get started
2
Create an API key
Generate a key in the provider console and save it somewhere safe.
3
Call it
Use the key with any OpenAI/Anthropic-compatible client, pointing at the provider endpoint.
Free tier limits change frequently — confirm the current quota on the provider's own page before relying on it.
Successful API requests are billed at the displayed token rates, metered to a fraction of a cent. Charges accumulate and are deducted from your prepaid balance in whole US cents, so a small request is not rounded up to a minimum charge.