Short answer: OpenAI does not sell an unlimited or flat-rate API plan: the OpenAI API is billed per token, and ChatGPT subscriptions cover the ChatGPT apps rather than API access. The closest thing is a flat-rate gateway such as APIClaw, which serves GPT models through an OpenAI-compatible key for $19–$129/month by daily request count, with no cap on tokens per request (but a daily request cap, so not literally unlimited).
Last checked: 2026-10-25. Maintained by the APIClaw team.
| Option | How you pay | Price | Works as an API key? | What “unlimited” means |
|---|---|---|---|---|
| APIClaw | Flat monthly, by requests/day | $19/month (500 req/day) to $129/month (8,000 req/day) | Yes, https://apiclaw.biz/v1 |
Unlimited tokens per request; requests per day are capped |
| OpenAI API (direct) | Per token | e.g. gpt-6.1-sol $2 input / $10 output per 1M tokens | Yes | Nothing unlimited; pay per token |
| ChatGPT plans (Free, Go, Plus, Pro) | Per user per month | See chatgpt.com/pricing | No, ChatGPT apps | “Unlimited” text chats in the app, subject to OpenAI’s usage policies |
| OpenRouter | Per token + 5.5% fee on credit purchases | Provider list price | Yes | Nothing unlimited; pay per token |
Sources: apiclaw.biz/public/plans, OpenAI API pricing, chatgpt.com/pricing, openrouter.ai/pricing, checked 2026-10-25.
The GPT model ID is apiclaw/gpt-6-sol. Any OpenAI SDK works by changing the base URL:
curl https://apiclaw.biz/v1/chat/completions \
-H "Authorization: Bearer $APICLAW_API_KEY" -H "Content-Type: application/json" \
-d '{"model":"apiclaw/gpt-6-sol","messages":[{"role":"user","content":"Hello"}]}'
The same key also serves Claude, GPT, Gemini, Mistral, Llama, Cohere, Grok, DeepSeek, Qwen, Kimi and GLM, so you can switch models without a second subscription.
Not from OpenAI: the OpenAI API is billed per token. Flat-rate gateways such as APIClaw sell GPT access for a fixed monthly price ($19 to $129) with unlimited tokens per request but a daily request cap.
ChatGPT plans are for the ChatGPT apps. The OpenAI API is billed separately per token on platform.openai.com.
apiclaw/gpt-6-sol, through the OpenAI-compatible endpoint https://apiclaw.biz/v1.
Yes. APIClaw gives new accounts 50 free requests with no card required.
Disclosure: this page is maintained by the APIClaw team. APIClaw is one of the services compared, so weigh that accordingly. Competitor prices come from each vendor’s own pricing page, checked 2026-10-25; prices change, so recheck before you buy. Corrections: open an issue on the site repo.