Yes — for daily-budget campaigns, OpenAI publishes a minimum daily budget that varies by the ad account’s billing currency. On the Creating campaigns “Minimum campaign spend” table (checked 23 October 2026), that minimum is 25 USD, 15 GBP, and 15 EUR for those currencies. It is a platform floor for daily budgets, not a recommended test size.
A LinkedIn practitioner note about running about £15/day in the UK is consistent with the GBP floor but is one advertiser’s experience, not OpenAI documentation.
US, UK, and Europe (EUR) minima
From OpenAI’s Creating campaigns minimum table (checked 23 October 2026). Confirm the live value in Ads Manager for your currency — the table can change.
| Market focus | Billing currency | Published minimum daily budget | Source date |
|---|---|---|---|
| United States (and other USD accounts) | USD | 25 USD | 23 October 2026 |
| United Kingdom (GBP accounts) | GBP | 15 GBP | 23 October 2026 |
| Euro-billing accounts (many EU markets) | EUR | 15 EUR | 23 October 2026 |
What the minimum does and does not mean
OpenAI describes a daily budget as an average over a Sunday–Saturday week in the account time zone, not a hard same-day cap. Daily spend may reach up to twice the selected daily budget on one day, and up to seven times over the budget week (with proration when the budget changes).
OpenAI does not publish a single public minimum for campaign-total (lifetime) budgets in that currency table. Self-service Ads Manager availability is separate from the currency minimum — the legal entity must be in a country listed as available.
Cluster links
Continue with buying steps, Ads Manager setup, or the hub overview.
Common questions
Is there a ChatGPT ads minimum spend?
For daily-budget campaigns, OpenAI publishes a minimum daily budget by billing currency. Examples checked 23 October 2026: 25 USD, 15 GBP, and 15 EUR. Confirm the live table in Ads Manager.
Is £15/day the UK minimum?
OpenAI’s published GBP minimum daily budget is 15 GBP. A LinkedIn post about running about £15/day is one practitioner’s experience that matches that floor; it is not separate OpenAI guidance.
Does the minimum guarantee delivery?
No. Billing, eligibility, review status, targeting, and creative still control whether ads can serve. The minimum is a budget floor, not a delivery promise.
Sources and verification
Currency minima from OpenAI Creating campaigns table checked 23 October 2026. LinkedIn £15/day note labelled as practitioner commentary. Your account may expose a different set of features. Examples are illustrative unless a dataset is explicitly supplied.
