Cresta

Cresta is one of the most established enterprise AI platforms for contact centers, used by large companies like CarMax, Vodafone, Brinks Home, Holiday Inn Club Vacations, and others to make every customer conversation more productive. The product line covers three connected layers: Agent Assist, which whispers real-time suggestions and answers to human reps during live chats and calls; Conversation Intelligence, which transcribes, summarises and analyses 100% of conversations so QA, training, and coaching are no longer a sampling exercise; and Cresta AI Agent, a voice and chat agent that can handle full conversations end-to-end for tier-1 inquiries. The platform is built on what Cresta calls 'Generative AI grounded in your business' — fine-tuned models trained on a customer's own calls, scripts, knowledge base, and outcomes, so suggestions sound like the brand and align with conversion or CSAT goals. Cresta also ships native integrations with Genesys, Five9, NICE, Salesforce, Zendesk, and other CCaaS and CRM systems, plus dashboards for supervisors and quality teams. Pricing is enterprise contract-based, typically a per-seat or per-minute model with implementation services. For Fortune 1000 sales, support, and retention teams, Cresta is in the same conversation as Forethought, Level AI, Observe.AI, and Genesys's own AI features when it comes to choosing a contact-center AI suite.