Which payment models are best to use in a once-off campaign?

Product gifting/seeding and pay-per-post are ideal for once-off campaigns because they involve a single transaction or deliverable. Product gifting provides influencers with free products in exchange for potential content, making it a low-cost, high-reach option for short-term promotions. Pay-per-post models compensate influencers for a specific piece of content, offering clear cost control and a defined deliverable for a campaign with a limited duration. Affiliate performance models, while effective, require ongoing tracking and a longer engagement period to generate significant returns, making them less suitable for a one-time push. Content retainers involve recurring payments over an extended period, which is not aligned with the nature of a once-off campaign.