Chargebee: 2026 Playbook for Pricing AI Agents — Three Models Competing

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Chargebee published the definitive 2026 guide to AI agent pricing structures, identifying three competing models: per-task (charges for each discrete agent action, predictable but misaligned), per-outcome (charges only on verified success, aligned but risky for vendors), and tiered-agent-seat (a hybrid where agents have capability tiers rather than pure human headcount). The outcome-based model is spreading fastest across support (Intercom), HR (Workday Flex), and CRM (Salesforce AWU), but hybrid tiered models are gaining in devtools and analytics where 'outcome' is harder to define.