Not from zero. A new OpenAI account gets no free API tier. Organisations already on a paid usage tier (Tier 1 or above) can opt into data sharing for complimentary daily tokens: up to 1M a day on the large models (250K at Tiers 1-2), and all shared traffic is used for training. Checked 2026-09-05; not readable from our client since 2026-10-08.
Every offer from OpenAI in our catalog, each with the date it was last verified against the provider's own page. "No" and "ended" are answers too, so they stay listed.
| Offer | Provider | Status | What it offers | Expiry | Verified | Source | Caveats |
|---|---|---|---|---|---|---|---|
| Complimentary daily tokens (data-sharing) | OpenAI | available | Up to 1M tokens/day shared across the large-model group (gpt-5.6-sol, gpt-5.5, gpt-5.4, gpt-5.2, gpt-5.1, gpt-5.1-codex, gpt-5-codex, gpt-5, gpt-5-chat-latest, gpt-4.1, gpt-4o, o3, o1, o1-preview; 25… | no stated expiry | 2026-09-05 | source | NOT READABLE FROM OUR CLIENT SINCE 2026-10-08: the first-party help article returns 403 to our own client, and the 2026-09-05 read behind every figure here went through a third-party text-extraction route that is now re… |
Discounts, subscriptions, applications, and offers that ended or do not exist. They are not a free API tier, and they are listed so nothing is hidden.
| Offer | Provider | Status | What it offers | Expiry | Verified | Source | Caveats |
|---|---|---|---|---|---|---|---|
| GPT-5.6 Sol promotional API pricing | OpenAI | available | Temporary price cut on the GPT-5.6 Sol API: $4.00 per 1M input tokens and $20.00 per 1M output tokens at short context, down from $5.00/$30.00 — a 20% cut on input and ~33% on output. Long context is… | expires 2026-11-21 | 2026-08-26 | source | EXPIRES: promotional, guaranteed only "at least through November 21, 2026" — OpenAI has not said what rate follows, so treat it as a planning window, not a permanent reset, and re-check this row in November. Applies to… |
| OpenAI Codex for Open Source | OpenAI | available | For maintainers of widely-used open-source projects: six months of ChatGPT Pro with Codex, API credits drawn from the $1 million Codex Open Source Fund, and conditional access to Codex Security. | no stated expiry | 2026-09-16 | source | APPLICATION-GATED AND DISCRETIONARY, not a tier you can sign up for — the published terms grant the benefits "at OpenAI's sole discretion". agent_usable is false: this is a subscription plus grant-awarded credits, not a… |
| Ramp Rewards — OpenAI API credits | OpenAI (via Ramp Rewards) | available | Up to $2,500 in OpenAI API credits for startups | no stated expiry | 2026-08-24 | source | “Up to” — the offer page states no tier table, so the amount an individual startup actually receives is unstated and may be well below $2,500; redeemed through Ramp Rewards, so it needs an approved Ramp corporate-card a… |