Best offer on record: No free API tier / no signup credits (API is pay-as-you-go). 7 verified findings, checked 2026-10-22.
Offers
No free API tier / no signup credits (API is pay-as-you-go) medium confidence
The OpenAI API has no free tier: new API projects get zero free credits; you must add a payment method and prepay a minimum of ~$5 before the first request succeeds. Sign-up for an account is free, but the first API call returns 429 (usage limit) until balance and billing are set up. Credits are prepaid and burn off; they expire ~1 year from purchase. This is the confirmed status as of 2026-10: multiple official OpenAI support replies on the developer forum (May-July 2025 and later) state 'no free credits' and point to prepaid billing. Note: openai.com blocks automated fetches (403 today), so the official quickstart page itself could not be re-read; finding rests on repeated OpenAI staff replies plus platform behavior.
Eligibility
All developers — N/A, there is nothing to claim. No .edu or startup path bypasses this.
How to claim
Create an API org at platform.openai.com, add a card, deposit >= $5 prepaid credits, then build. No free-credit step exists.
Expiry
Prepaid credits expire ~12 months from purchase; unused credits at org close are non-refundable per billing terms.
Gotchas
429 on first request is the normal state without billing, not a bug. Higher-security models (o-series, image models, Codex) additionally require org verification. Third-party 'grant' programs occasionally award ad-hoc credits, but there is no standing promo. The old one-time $5 new-user credit has been discontinued — do not expect it.
OpenAI Researcher Access Program (up to $1,000 API credits, researchers only) high confidence
OpenAI's only standing subsidized-credits program. Researchers can apply for up to $1,000 in OpenAI API credits, valid for 12 months, applicable to any publicly available model. Credits cannot be extended or renewed, and you must complete your research within the 1 year. Applications are reviewed once every 3 months (March, June, September, December); awarded credits take 4-6 weeks after the decision. Focus areas: responsible deployment of AI, safety/alignment, societal impact. Application goes through a SurveyMonkey form via openai.com/form/researcher-access-program.
Eligibility
Researchers with an active affiliation to an academic institution, research organization, or qualifying nonprofit (not for-profit startups/companies). OpenAI 'encourages applications from early-stage researchers in countries supported by our API' and prioritizes those with limited financial/institutional resources. API-supported country requirement; no stated funding cap on the applicant. .edu email per se not required, but institutional affiliation is.
How to claim
1) Fill the application at openai.com/form/researcher-access-program (third-party SurveyMonkey Apply account needed). 2) Describe research question and planned use of OpenAI products. 3) Wait for the next quarterly review cycle (Mar/Jun/Sep/Dec). 4) If approved, credits land 4-6 weeks later. No credit card required for the credits themselves (API account still needs standard setup).
Expiry
Credits expire exactly 12 months after grant; no renewal. Quarterly application windows (March, June, September, December).
Gotchas
This is a research program — commercial product development (e.g. a solo-entrepreneur app) is explicitly out of scope; a 2025 forum thread confirms it's the only alternative to paid credits and it requires an academic/nonprofit affiliation. Subject to OpenAI's Usage Policies and a sharing & publication policy. Review cadence is slow (up to ~3 months between cycles + 4-6 weeks to credit).
ChatGPT Free plan (consumer, rate-limited, no API access) medium confidence
The consumer ChatGPT Free plan exists: unlimited-ish chat on the current frontier models (GPT-5.x family since Aug 2025) with small daily message limits that grow with usage, plus image generation (DALL·E, roughly a few dozen images/month) and video (Sora, ~50 watermarked generations/month, 1080p). No credit card required. Limits are soft and reset daily/monthly; OpenAI adjusts them frequently and by region. This is a product, not a developer offer: it gives no API keys, no fine-tuning, and (on Free) your prompts may be used for training per the consumer terms.
Eligibility
Any individual; 18+ in supported regions. No .edu email, no credit card, no age/funding cap. Regional availability of some models/features varies.
How to claim
Sign up at chatgpt.com with email/phone or SSO; Free plan is the default. Nothing else to claim; paid plans (Plus $20/mo, Pro $200/mo) are optional upgrades.
Expiry
No expiry while the Free plan exists; specific model access and limits can be changed or removed at any time (e.g., Sora free-tier limits tightened through 2025).
Gotchas
Do not conflate ChatGPT Free with API access — the API is a separate paid product. Free-tier limits have oscillated (message caps, Sora caps, image caps) and differ by region; treat the numbers above as approximate. Free-tier conversations may be retained and used for model training under consumer data terms, unlike paid tiers where you can opt out of training use.
OpenAI for Teachers / OpenAI for Schools (free Pro-tier access for verified educators) medium confidence
OpenAI gives verified teachers free access to OpenAI Pro (announced Oct 2024; expanded through 2025 into K-12, college and university programs — 'OpenAI for Schools'), including the full Pro model set, extended context, and classroom/teacher features, with no ads and at no cost to the teacher; schools that adopt it in bulk get a discounted ChatGPT Edu/Teams license for the whole institution. This is the education-license front: the individual benefit is aimed at educators, not students.
Eligibility
Teachers/educators at schools, colleges or universities (K-12 or higher-ed) in supported regions, verified via school email/institutional ID at openai.com/teachers. No credit card required for the free teacher access. Students do not get personal accounts from this — they benefit only where their institution has licensed ChatGPT.
How to claim
Apply via OpenAI's for-teachers page/portal, verify with your school email, get Pro at $0. Institutions: school admin purchases ChatGPT Edu/Teams per-seat (institution pays, staff/students access free through the school license).
Expiry
Free as long as teacher verification remains active; OpenAI has periodically expanded rather than sunsetted it (K-12 push in 2025). No stated end date.
Gotchas
Verification can be slow and occasional; program terms target instructional use. For students, the free path is only via their school's license — an individual student with just a .edu email cannot self-enroll for free. Not a startup/developer offer at all.
ChatGPT Campus / university partnerships (free-for-student via institutional purchase) medium confidence
OpenAI sells ChatGPT Edu / Teams / Campus licenses to universities (650+ institutions signed deals through 2025; 'ChatGPT Campus' bundles ChatGPT access for enrolled students, typically with Sora/Codex features, paid per-seat by the school). For a student this is a free offer in practice — enrollment in a partner university grants account access at no personal cost, usually via .edu SSO. OpenAI is the one subsidizing nothing directly; the school is the customer.
Eligibility
Enrolled students/faculty at a partner institution; access typically via .edu SSO or a school-issued license. No personal credit card, no personal payment. Non-partner students get nothing from OpenAI directly.
How to claim
No personal claim flow: use your university's access (SSO/portal). If your school has no deal, there is no OpenAI student discount page to apply to (unlike some competitors' student programs).
Expiry
Lasts for the term of the school's license; renews when the school renews. Varies by institution.
Gotchas
Uneven coverage — availability depends entirely on your school. Some deals are discounted-plus rather than fully free to the student. This is a B2B channel, not a grants program; don't list it as a claimable offer for unaffiliated students or startups.
Free tokens for data-sharing (opt-in) — SUNSET April 30, 2025 high confidence
In December 2024 OpenAI gave organizations that opted in to sharing prompts/completions up to 11M free tokens/day (1M across GPT-4o/o1-class, 10M across mini-class models). Originally ending Feb 28, 2025, it was extended once to April 30, 2025, and then ended. As of 2026-10 there is no successor program. This was the only time-bounded 'free tokens' mechanism on the paid API.
Eligibility
Paid-API organization owners who enabled data sharing (Data Sharing Settings). Required a nonzero balance and worked for Chat Completions/Batch APIs, not all endpoints.
How to claim
No longer claimable — the program lapsed April 30, 2025.
Expiry
Ended April 30, 2025 (extended from Feb 28, 2025).
Gotchas
Documented footguns: balance had to be >$0 or the free tokens wouldn't apply; applicability varied by API surface. If a dashboard still shows enrollment wording, it is stale UI — no credits accrue.
No startup program / no grant credits for startups or students-as-developers medium confidence
OpenAI does not run a public startup, student-developer, or accelerator credit program (no 'OpenAI for Startups', no .edu developer credits, no first-time-founder grants) as of 2026-10. Official OpenAI replies on the developer forum (2025) confirm: 'There is no free credit for individuals' — the only credit path is the Researcher Access Program (academic/nonprofit researchers). Anything else is ad-hoc marketing promos that appear and disappear without standing eligibility.
Eligibility
N/A — no standing program exists to qualify for. The startup-age/funding-cap question is moot.
How to claim
Nothing to claim. Realistic routes for a cash-poor student/startup: (1) Researcher Access Program if the work is research with academic/nonprofit affiliation; (2) a $5 prepaid API balance with hard usage limits (cost controls) on the paid API; (3) ChatGPT Free consumer plan for interactive use, not for API work.
Expiry
N/A
Gotchas
Beware third-party 'OpenAI credits' offers — OpenAI grants arrive only on your own org's billing page. Prepaid API credits expire in 12 months and can't be renewed; the old $5 sign-up credit is dead, so new accounts start at $0.000
1) One-time ~$5 API sign-up credit (legacy, ended ~2023) — no new accounts get it; confirmed dead by OpenAI staff replies throughout 2025. 2) Free-tokens-for-data-sharing program: launched Dec 2024, extended to Apr 30, 2025, SUNSET (no successor as of 2026-10). 3) Limited-time free previews (o1/o1-pro, mid-2024) long ended. 4) 2025-2026 expansions: OpenAI for Teachers/for Schools grew from educator Pro-access to a K-12/university push; ChatGPT Campus B2B deals scaled to 650+ institutions (free for students only via the school's license). 5) Consumer side shifts: GPT-5-family models moved to the Free plan (Aug 2025) with daily caps; Sora and DALL·E ride on Free with watermarked/limited generation caps that OpenAI has tightened during 2025 — so 'free' consumer access exists but is rate-limited, region-variable, and changeable without notice. 6) No 2025-2026 change reintroduced any standing free developer credits: as of 2026-10 the API remains pay-as-you-go from the first token, with the Researcher Access Program ($1,000, 12-month, quarterly review) as the only subsidized-credits program and it is scoped to academic/nonprofit researchers, not startups or students-as-builders. Caveat: openai.com and help.openai.com returned HTTP 403 to automated fetches on 2026-10-22, and the shared web-search budget was exhausted, so official pricing/education pages could not be re-read live today; confidence is high only where the page/form text itself surfaced in results (Researcher Access Program) or where OpenAI's official forum post was captured (free-tokens sunset); other findings carry medium confidence.
Critic corrections
OpenAI (ChatGPT / API): Partly contradicted. OpenAI's rate-limit guide (developers.openai.com, read Oct 22, 2026) lists a Free usage tier with no purchase requirement, open to users in allowed geographies and capped at $100 per month. The statement that the API is pay-as-you-go from the first token is outdated. No free-tier model list appeared on that page, and the no free API credits point still roughly holds.
No free API credits for developers; pay-as-you-go from the first token: OpenAI offers complimentary daily tokens to eligible organizations that opt in to sharing API traffic. The help article says some organizations 'may qualify for daily complimentary tokens on traffic shared with OpenAI' (wording quoted in an Aug 21, 2026 community thread). Sept 2025 platform text quoted 1M tokens/day on flagship models and 10M/day on mini models. The help page returned 403 to my fetch, so these quotes are secondhand.
outdated: 'No free API credits for developers' omits conditional complimentary daily tokens: Organizations that opt into sharing API inputs and outputs with OpenAI may get daily complimentary tokens on listed models. Eligibility is not published; the Help Center says only that some organizations may qualify. Limits have changed (1M and 10M tokens per day in 2025; 250K and 2.5M reported in March 2026). Reword the entry as conditional.