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ChatGPT API Pricing in 2026
ChatGPT Plus is a flat monthly fee for the chat app. The OpenAI API is pay-per-token — a separate product with separate billing at platform.openai.com. RunAPI serves every GPT model through the same OpenAI-compatible endpoint, and the table below lists current rates.
What does the ChatGPT API cost right now?
ChatGPT has two completely separate products with different billing. The subscriptions (Plus, Pro, Team) are flat monthly fees for the chat app — they do not include API credits. The API charges per million tokens and gives programmatic access from code. If you paid for Plus thinking it gave you API access, it doesn't — that's a separate account at platform.openai.com. The cards below cover both.
ChatGPT Plus is a monthly subscription for the web and mobile chat app. No API access and no per-token billing.
GPT-5.4 is billed per million tokens, and output tokens cost more than input — keep responses short to control spend.
GPT-5.4-mini is the lowest-priced model in the pricing table.
The API runs in Claude Code, Cursor, and Codex through an OpenAI-compatible endpoint. Subscriptions do not.
What is the difference between ChatGPT Plus, Pro, Team, and the API?
The subscriptions are for people who chat in the app. The API is for developers who call the model from code — it has no message cap; you pay per token and scale as needed. Many developers are shocked that the OpenAI website makes this so hard to find. The table compares all four so you can match the plan to how you actually use ChatGPT.
| Plan | What you get | Best for |
|---|---|---|
| ChatGPT Plus | Chat app, GPT-5.4 access, higher limits than free | Individuals using the chat interface |
| ChatGPT Pro | Chat app, highest limits, Pro reasoning mode | Power users running long reasoning tasks |
| ChatGPT Team | Chat app for teams, shared workspace, admin console | Small teams sharing the chat app |
| OpenAI API | Programmatic access, all models, no chat app | Developers, agents, CI pipelines, editors |
The API and the subscriptions are billed separately. Paying for Plus does not include API credits, and API usage does not unlock the chat app.
How much does each GPT model cost per million tokens?
The table below shows official OpenAI pricing alongside RunAPI pricing from the current price list. No volume commits, no subscriptions.
| Model | Official input /M | Official output /M | RunAPI input /M | RunAPI output /M |
|---|---|---|---|---|
| gpt-5.5 Higher rate on long prompts | $5.00 | $30.00 | $4.00 20% OFF | $24.00 |
| gpt-5.4 Higher rate on long prompts | $2.50 | $15.00 | $2.00 20% OFF | $12.00 |
| gpt-5.4-mini | $0.75 | $4.50 | $0.60 20% OFF | $3.60 |
| gpt-5.2 | $1.75 | $14.00 | $1.40 20% OFF | $11.20 |
How to access the ChatGPT API through RunAPI
Create a RunAPI account
Sign up and generate an API key from the dashboard.
Copy your API key
Go to Dashboard → API Keys. Create a key and save it — you will use this as your OpenAI API key.
Point your SDK to RunAPI
Set the base URL to https://runapi.ai/v1 and use your RunAPI API key. Any OpenAI-compatible client works — Python, Node.js, Go, Ruby, or curl.
Start making requests
Use gpt-5.4, gpt-5.4-mini, or any GPT model ID in the model parameter. RunAPI handles routing and bills at the rates listed on this page.
ChatGPT API Pricing FAQ
Is ChatGPT Plus the same as the ChatGPT API?
No. ChatGPT Plus is a monthly subscription for the chat app on web and mobile. The API is a separate pay-per-token product for developers. Paying for Plus does not include API credits, and API usage does not unlock the chat app.
How much does GPT-5.4 cost through the API?
The pricing table above lists OpenAI's official rate and the RunAPI rate for GPT-5.4 per million tokens, from the current price list. There is no subscription or volume commitment; you pay only for the tokens each request uses.
Can I use the ChatGPT API in Cursor or Codex?
Yes. Both Cursor and Codex accept an OpenAI-compatible base URL. Point them at runapi.ai/v1 with your RunAPI key and select a GPT model ID. The subscriptions cannot be used this way — only the API gives the programmatic access these editors need.
What is the cheapest GPT model for the API?
GPT-5.4-mini is the lowest-priced model in the pricing table above. It suits high-volume tasks like classification, support chat, and extraction where the larger models would be overkill. For complex reasoning, step up to GPT-5.4 or GPT-5.5 instead.
If I run an n8n bot that creates a few outputs a week, how much will the API cost?
For a low-intensity automation — say an n8n bot running a few short tasks a week — the API costs very little, because you pay only for the tokens those tasks use. To estimate it, multiply the tokens per task by the rates in the pricing table. Costs only rise if tasks process large documents or run hundreds of times a day.
Do they allow you to use it free for a certain amount of time?
Creating an account and API key is free. API calls use prepaid, pay-as-you-go billing; add funds before making requests.
How does billing work?
Pay-as-you-go. You fund your account with a balance, and each API call deducts the token cost. No subscriptions, no invoices, no contracts. You can monitor spend per key from the dashboard.
Explore More
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Compare 250+ models across text, image, video, and audio.
Start using GPT with one API key.
Create a free RunAPI account, get your API key, and start calling GPT-5.4, GPT-5.4-mini, or any GPT model at the rates listed on this page.