Best Conversational AI Platforms in 2026

Conversational Agents is Google Cloud's console for building virtual agents on top of Dialogflow CX. Google's documentation says the console merges features of the deprecated Dialogflow CX console and the Vertex AI Agent Builder console, and that agents can combine generative playbooks, generative data stores and deterministic flows. Dialogflow CX models a conversation as a state machine of flows and pages, which gives developers explicit control over regulated or transactional dialogue while generative components answer open questions. Agents handle concurrent conversations and accept both text and speech. Google publishes pricing per text or voice request or session, with generative features priced separately; current rates are on the Google Cloud pricing page.

Copilot Studio is Microsoft's platform for building, testing and publishing AI agents using natural-language instructions or a graphical designer. Agents can run on their own or be published into Microsoft 365 Copilot. Microsoft sells usage as Copilot Credits: a prepaid pack of 25,000 credits costs US$200 a month, with savings of up to 20% through commit units, or credits can be billed pay-as-you-go at the end of each month. An Azure subscription is required, and use of agents published to Microsoft 365 Copilot is included in that licence.

Agentforce is Salesforce's platform for AI agents that act on CRM data in sales, service and field-service processes. Its pricing page offers several models: Flex Credits at US$500 per 100,000, with a standard action consuming 20 credits and a voice action 30; a per-conversation price of US$2 for customer-facing agents; an Agentforce user licence at US$5 per user a month; and add-ons from US$125 per user a month. Salesforce Foundations, which includes Agentforce Builder, is free for Salesforce customers. Flex Credits and conversation pricing cannot be combined in one org, and unused credits do not roll over.

Kore.ai sells AI agents and workflows in three areas: customer service (voice and digital agents, agent assist and an AI-native contact centre), employee work (enterprise search and HR, IT and recruiting assistants) and long-running business processes. Its platform, called Artemis, includes an optimisation engine, execution tracing and a typed Agent Blueprint Language for defining agent behaviour. The company names Morgan Stanley, Citi, Vanguard, AMD and Lilly among its customers and states that it was named a Leader in Gartner's 2026 Magic Quadrant for Conversational AI Platforms. Pricing is not published.

Cognigy builds AI agents for voice, chat and messaging, together with an agent copilot for human contact-centre staff. Its website now brands the product as NiCE Cognigy and describes it as native inside the NiCE CXone contact-centre platform, while stating that it also works with any CCaaS platform through more than 110 prebuilt integrations. Cognigy says it is trusted by more than 25,000 brands and names Bosch, Toyota, Nestlé, Lufthansa Group, DHL and Mercedes-Benz as customers. NiCE listed a press release on a next-generation NiCE Cognigy release dated 12 November 2026. Pricing is not published.

Amazon Lex is the AWS service for building conversational interfaces using speech and text. It has no minimum fee: speech requests cost US$0.004 each and text requests US$0.00075 each, so AWS's own example of 8,000 speech and 2,000 text requests in a month totals US$33.50. New AWS customers from 15 July 2025 receive up to US$200 in free-tier credits usable on eligible services including Lex, rather than a fixed number of free requests.

watsonx Orchestrate is IBM's platform for building and coordinating AI agents that carry out tasks across business applications. IBM publishes subscription tiers: a 30-day free trial; Essentials starting at US$578 a month; Standard starting at US$6,360 a month, which raises usage limits, document volumes and concurrency; and a quote-based Premium tier. IBM notes that prices are indicative, may vary by country and exclude taxes.

Sierra builds AI agents for consumer-facing companies and deploys a single agent across chat, SMS, WhatsApp, email, voice and ChatGPT. Its tooling includes Ghostwriter, which drafts agents from standard operating procedures or transcripts, Agent Studio, and an Insights suite for experiments and monitoring. The company describes its pricing as outcome-based, meaning customers pay for results delivered rather than a flat fee. Customers shown on its site include Rocket Mortgage, Gap Inc., Singapore Airlines, Hyatt, Vanguard, Santander, SiriusXM and Wayfair.

Decagon offers AI agents for customer service across voice, chat and email, together with tools for building workflows (which it calls Agent Operating Procedures), testing and experimentation, and reporting through products named Watchtower and Suggestions. Customers listed on its website include Deutsche Telekom, American Airlines, Square, Delta, Notion, Duolingo, Dropbox and Hertz. Pricing is available only through a sales demo.

Fin is Intercom's AI customer-service agent. It can be bought on its own for use with an existing help desk or as part of Intercom's seat plans. Intercom charges US$0.99 per outcome, defined as a customer confirming resolution, ending the request after Fin's reply, or Fin completing a workflow, including hand-offs; the charge applies once per conversation. Use with a third-party help desk carries a minimum monthly commitment. Intercom's seat plans are listed at US$19, US$85 and US$132 per seat a month for Essential, Advanced and Expert.

Yellow.ai builds AI agents for customer service across chat and voice. Its pricing page lists a Free plan with one AI agent and 500 chat sessions a month, after which resolutions cost US$0.99 each, and a quote-based Enterprise plan supporting more than 35 channels. The company states that its Nexus VOX voice agents can handle calls in more than 500 languages. The site's copyright line names Bitonic Technology Labs Inc. as the operating entity.

Rasa provides a developer-oriented platform for building conversational assistants that can be run self-managed on-premises or in a private cloud, or as a managed service. A free Developer Edition licence allows one bot per company and up to 1,000 external or 100 internal conversations a month, for local or production use, with community forum support. The Enterprise edition is quote-based and adds full platform access and premium 24/7 support; a voice connector for AudioCodes VoiceAI Connect is sold separately.

LivePerson's Conversational Cloud is a platform for designing, simulating and improving conversations handled by AI agents and human staff across messaging channels. It supports bringing a customer's own language model and includes a chatbot toolset. The company states that it handles over a billion messages a month. Its homepage also lists outcome percentages, such as a 90% automation rate, without identifying the customers or periods they come from, so they are not relied on here. Pricing is not published.