Flow XO vs SOVA

Flow XO has no write-up on Specifiction yet; its figures are above.

SOVA is a free, open-source ecosystem for building conversational AI, including virtual assistants, chatbots, speech tools, and neural-network software. SOVA IDE provides tools to develop, test, and release assistants, with a knowledge base, dialog processor, and team development features. Its dialog language supports rules, variables, external database queries, and modular dialogue structures. ChatKit is a React component set for chat widgets, with file sending, media, message editing, search, and channel selection. SOVA ASR converts recorded or live speech to text, while SOVA TTS generates audio from text. The maker says these speech tools run locally and are licensed under Apache 2.0 for academic and commercial development. SOVA lists 28,853 hours of labeled Russian and English audio under CC-BY 4.0. Products can run offline, in Azure or AWS, or locally using Docker. SOVA Mobile for iOS and Android supports text and voice messaging, multiple assistants, and conversation history. The maker also directs enterprise inquiries to Sales.