Is the GPT API free? No, and here is the exact map.

Quick answer: "GPT" is several products, and the free one is not the API.

The short answer is no: the OpenAI API has no free tier. The longer answer is that "free GPT" is true of some products wearing the brand and false of the one this search is about. ChatGPT's free tier is real: current models in a chat window, daily limits, no payment. The paid ChatGPT plans raise those limits and add features, but none of them includes API credits, and API spend raises no chat limit. The API itself is prepaid: you load a balance before the first billed request, and every call meters per token at list rates. The playground draws from the same balance. The two free cracks in that wall are a complimentary daily-token program for accounts that opt in to sharing their API data for training, and application-based credit programs for startups; neither is a sign-up-and-go free tier. Here is the map, and the rest of the page walks each row.

Why ChatGPT plans do not answer the API question.

The most common version of this search comes from someone who pays for ChatGPT and assumes the subscription covers API calls. It does not, in either direction: consumer plans and platform billing are unrelated meters. "I pay for ChatGPT" and "I can call the OpenAI API" are independent facts, and upgrading one changes nothing about the other. The clean test for any GPT access route: does it end with an sk-style key that answers at an HTTPS endpoint your code can call? Chat plans fail that test at every price. The platform passes it, prepaid. The data-sharing program passes it too, for the accounts it is offered to, with training terms attached. One more source of stale advice: articles that describe new accounts receiving an automatic starter credit. That program ended; 2026 guides consistently describe fresh accounts starting from zero, so budget for a small prepayment or pick a route with a genuine free start.

What the OpenAI API actually costs, and the one real free mechanism.

OpenAI prices per million tokens, each model with its own input and output rate: the mini models at the bottom of the family, the flagship line above them. Billing is prepaid with a small minimum top-up, so the API is already pay-as-you-go by design; what it lacks is any free allocation on top for a standard account. The complimentary daily tokens are the exception worth understanding precisely. Opt in to sharing your API prompts and completions for model training, and eligible accounts receive free daily allowances on a published model list, reported in 2026 at up to a million tokens per day on flagship-class models and a larger allowance on mini-class models. The conditions are the point: eligibility has commonly required prior paid usage, the model lists and amounts have changed over time, community threads describe accounts that never see the offer, and the training terms rule out anything sensitive. OpenAI has said the program ends only on notice, which is both reassuring and a reminder that it is a program, not a right. For a workload those terms fit, the program is genuinely useful and costs nothing. For everything else, the question becomes which metered route is priced best, and the table below puts official list rates next to catalog rates here.

Pay-as-you-go · transparent per-model pricing

Selected models are priced below official list prices. Exact input, output, cache, and per-request prices are shown for each model.

The fastest free way to call gpt ids anyway.

If the goal behind the search is "send requests to GPT models today without paying first or sharing training data", the direct route is a gateway starting credit. APIsRouter issues a free starting credit with no card required, spendable on any catalog id including gpt-5.4-mini, gpt-5.4, gpt-5.5, and the gpt-5.6 variants, at the same catalog rates paid traffic pays. When the credit is spent, access continues as pay-as-you-go top-ups with no subscription. Same honesty as everywhere else on this page: a starting credit is not unlimited free GPT, because nothing is. What it changes is the order of operations: evaluate first, on the real ids, with per-request token counts in the usage log, and let money move only if the results justify it. The same key runs Claude, Gemini, and DeepSeek ids, so the "is GPT the right family for this workload" question gets answered with identical requests instead of vendor marketing.

curl https://api.apisrouter.com/v1/chat/completions \
  -H "Authorization: Bearer $APISROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.4-mini",
    "messages": [{"role": "user", "content": "Explain the difference between ChatGPT plans and API billing in two sentences."}]
  }'

How to decide in thirty seconds.

• You want to chat with GPT models: ChatGPT's free tier. No key, no card, daily limits.
• You automate non-sensitive, high-volume work and already spend on OpenAI: opt in to the data-sharing tokens if your account is offered them; free tokens for training data is a fair trade for some workloads.
• You want to test gpt ids from code, today, free, without training terms: the starting credit here.
• You have GPUs and private data: the open-weight gpt-oss models self-host with no per-token bill; they are a capability tier below the hosted line.
• You are shipping production traffic: prepaid per-token billing, on OpenAI's platform or a gateway. Free mechanisms are for evaluation, not production, everywhere.

Why this question keeps getting confused answers.

Three patterns generate most of the noise. First, brand blur: "GPT is free" is true of the chatbot and false of the API, and most coverage never says which product it means. Second, stale trial-credit lore: years of articles describe an automatic starter credit that no longer exists, so a fresh account's zero balance reads like a bug instead of the current policy. Third, program-versus-tier confusion: the data-sharing daily tokens are real and substantial, but they are conditional, changeable, and opt-in, which is a different thing than a free tier even when the token counts look similar. The reliable check beats all of it: open the billing page of whatever route you chose and look for a balance and a key. If both exist and cover your evaluation, the route works; everything else is press-cycle detail.

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