TalkStack

TalkStack AI is a platform for building and deploying AI agents that handle customer support, sales and operations conversations over voice calls and text. The agents answer inbound calls, qualify leads, book appointments, send reminders for renewals and resolve routine support cases, working around the clock in more than 20 languages. It is designed for startups and enterprises that want to scale support and outbound work without adding headcount. Agents are created without code: users pick a voice, set the tone, load a knowledge base and connect tools. A visual workflow builder chains calls, SMS, WhatsApp messages and wait steps into multi step campaigns, and the platform runs across voice, text and digital messaging channels. Every interaction produces a transcript and recording for review, and analytics track conversions and outcomes. The vendor states that agents can handle up to 90 percent of tier one and tier two support cases. Pricing is per call minute, prorated to the second and billed monthly. The Trial plan has no setup fee and charges $0.15 per call minute. Starter, for more than 5,000 minutes a month, charges $0.12 per call minute, includes 1,000 free minutes and white glove onboarding, and offers custom system integrations. Enterprise, for more than 10,000 minutes a month, has no setup fee, volume discounts as low as $0.05 per minute, a dedicated account manager and an on premises option. The company also advertises up to $5,000 in free credits for eligible applicants.