How to get free OpenAI / GPT credits

The short answer

We could not confirm a general free API signup credit on OpenAI’s current pricing and billing pages; new accounts use prepaid billing. Account-specific promotions may differ. To use GPT models on credit, the documented routes run through Microsoft Azure: Azure for Students ($100, no card) and Microsoft for Startups, whose credits cover Azure OpenAI models. For free open models with an OpenAI-compatible API, use OpenRouter's free models or Groq's Free plan, which serves OpenAI's open-weight gpt-oss models. Always confirm current terms on OpenAI's site.

If you’re looking for free OpenAI API credits, we could not confirm a general free signup credit on OpenAI’s pricing and billing pages on 21 October 2026. New accounts use prepaid billing. Check your own account for any specific promotion; ChatGPT’s free plan is separate from API access.

The documented credit routes below run through Azure; free open models are a separate alternative.

1. Confirm the current state on OpenAI

Check OpenAI’s API pricing and prepaid billing guidance for the current terms. Promotions come and go and are sometimes invite-only; we never list a figure we can’t verify, so treat any third-party “free $X” claim with suspicion unless OpenAI states it.

2. Use free models through a router

The simplest free path to capable models is a router:

  • OpenRouter free models — 50 free-model requests a day, and OpenRouter says its Free plan works without a payment method; one OpenAI-compatible API, so your existing code mostly just works.
  • Groq’s Free plan — very fast inference on OpenAI’s open-weight gpt-oss models (30 requests a minute on gpt-oss-120b).

Both use an OpenAI-style API, so switching is usually a base-URL and model-name change.

3. Spend cloud credits on hosted models

If you specifically need OpenAI’s hosted models, the documented credit routes run through Azure. Microsoft for Startups credits apply to models “sold and billed directly by Azure”, which Microsoft says “include all Azure OpenAI models”. Azure for Students gives verified students $100 for 12 months with no card and lists Azure OpenAI among its services. The general Azure free account gives $200 for 30 days, but Microsoft’s pages don’t say whether that credit covers Azure OpenAI, so confirm on your subscription.

4. Don’t fall for “free credit” tricks

Avoid anything that asks you to fake eligibility or multi-account — it breaks OpenAI’s terms and risks your account. The legitimate free routes above are enough to build and test real projects.

The offers in this guide

  • OpenRouter Free LLM router
    Open

    OpenRouter free models (:free)

    Call a rotating set of LLMs free through OpenRouter's ':free' model variants — 50 requests/day with no purchase, 1,000/day after buying $10 in credits.

    Free value
    50 requests / day
    Card required
    No card
    Application deadline
    No deadline stated
    Allowance resets
    Every day · reset time not stated · timezone not stated — 50/day without purchase; 1,000/day after purchasing at least $10 in credits. Also limited to 20/minute. Reset time and timezone are not stated in the pricing FAQ.
    Who
    Anyone with an OpenRouter account. The higher 1,000/day cap requires a one-time $10 credit purchase.

    Available subject to the provider eligibility and usage conditions.

  • Groq Free LLM router
    Open

    GroqCloud free tier

    Start building on GroqCloud's $0 Free plan — very fast inference on open models including OpenAI's gpt-oss and Qwen. Groq asks for a payment method when you upgrade to the paid Developer tier.

    Free value
    No fixed amount
    Card required
    Card: not stated
    Application deadline
    No deadline stated
    Allowance resets
    See provider terms · reset time not stated · timezone not stated — Per-model per-minute and daily limits apply; use account Limits for exact organisation quotas.
    Who
    Anyone who signs up for a GroqCloud account.

    Available subject to the provider eligibility and usage conditions.

  • Microsoft Azure Student & education
    Open

    Azure for Students

    Verified students get $100 in Azure credits for 12 months with no credit card, usable on Azure OpenAI in Foundry Models — and renewable each year you are still a student.

    Free value
    $100
    Card required
    No card
    Application deadline
    No deadline stated
    Credit validity
    12 months after signup
    Who
    You must affirm you are age 18 or older and attend an accredited, degree-granting two-year or four-year institution as a full-time student, and verify academic status through your institution's email address. One subscription per eligible customer, non-transferable, and not combinable with other offers. Microsoft states activations are in limited supply and the offer runs only while supplies last.

    Available subject to the provider eligibility and usage conditions.

  • Microsoft Azure Startup program
    Open

    Microsoft for Startups — Azure credits

    Microsoft for Startups offers $1,000 in starter Azure credits after account setup and approval-dependent expansion up to $150,000. It is for eligible early-stage B2B startups; a personal Microsoft account with no prior Azure use and card details are required.

    Free value
    Up to $150,000
    Card required
    Card required
    Application deadline
    No deadline stated
    Credit validity
    Credit stages have different validity periods. Azure for Startups advertises 90 days initially and 180 days after verification; these are not the validity of every $150,000 award.
    Who
    B2B startups building software, AI or technology solutions — privately held and independent (not a subsidiary), pre-seed through Series B (Microsoft says you must "Not have raised Series C funding or later"), working toward or already at an MVP, and headquartered in a supported region. Open to founders with or without an investor referral code. A Microsoft account already used for the Azure free account, Azure for Students or another Azure offer is ineligible.

    Available subject to the provider eligibility and usage conditions.

  • Microsoft Azure Cloud AI credits
    Open

    Azure free account — $200 credit

    New Azure accounts get $200 in general-purpose credit for the first 30 days plus a year of limited free services. A phone number and a non-prepaid card are required.

    Free value
    $200
    Card required
    Card required
    Application deadline
    No deadline stated
    Credit validity
    30 days after signup
    Who
    Eligible new Azure customers. Requires a phone number, a non-prepaid credit or debit card, and a Microsoft or GitHub account.

    Available subject to the provider eligibility and usage conditions.

Frequently asked questions

Does OpenAI still give $5 or $18 free credit?
We could not confirm a general free sign-up credit on OpenAI’s current pricing and billing pages. New API accounts use prepaid billing; account-specific promotions may differ.
Is there a free OpenAI API tier?
There is no permanent free tier for the OpenAI API — usage is billed per token. The ChatGPT product has a free plan, but that is separate from API access.
How can I use GPT-style models for free?
Use OpenAI's open-weight gpt-oss models free on Groq's Free plan or OpenRouter's free models, or use Azure credit programmes: Microsoft says its startup credits cover all Azure OpenAI models, and Azure for Students lists Azure OpenAI among the services students can use.