OPenClaw, a practical tool in the AI voice agent space, offers Standard and Pro plans to meet different call scenarios. This guide compares the two across feature modules, call limits, and add-on services, helping you quickly spot the differences and avoid picking the wrong version and wasting your money.
Call Allowance & Concurrency
The Standard plan includes 1,000 minutes of voice call time per subscription with single-channel concurrency—ideal for individual developers testing or small projects running logic. The Pro plan bumps that to 5,000 minutes and unlocks five-channel concurrency, so enterprise-level applications can handle multiple customer calls at once without delays from queuing.
Note that the Standard plan caps monthly calls at 500; beyond that, you pay per minute. The Pro plan has no call limit—extra fees only kick in when the total minutes run out. If you’re planning bulk AI outbound calls, the Pro plan is more cost-effective.
Voice Models & Customization
The Standard plan uses the base "Titan-1" voice model, supporting Chinese and English with three fixed voice options. The Pro plan unlocks the "Nova-2" enhanced model, expanding voice choices to twenty and automatically adjusting speaking speed and emotional tone based on context—sounding much more human-like.
On customization, the Pro plan allows uploading your own enterprise-specific script library and interrupt strategies—for example, switching to a calming script when a customer mentions "refund." The Standard plan can only use default flow templates. For teams needing a branded voice experience, the Pro plan’s customization is a must.
