HeyGen vs TongFlow

HeyGen creates videos from text, images, audio, and presentations or PDFs, and provides AI avatars. Its AI Studio lets users adjust generated motion elements, including text, color, timing, and layout. Avatar lip-sync and translation support more than 175 languages and dialects. The Free plan costs $0.00 per free and allows three videos a month, each up to one minute. Creator costs $29 a month and includes 600 credits, videos up to 30 minutes, and 1080p export; Pro costs $49 a month and includes 1,000 credits, videos up to 30 minutes, and 4K export. HeyGen is available on Android, iOS, web, and API. Team tools include comments, tagging, shared editing, workspace collaboration, and task management. Business plans connect with tools including n8n, Make, HubSpot, Zapier, and LMS platforms. Paid plans include live chat support; Enterprise adds priority support and customer success management. HeyGen is headquartered in Los Angeles, California.

TongFlow is an open-source tool for building multimodal AI workflows on a visual canvas. Workflows can add, transform, combine, split and batch text, images, audio, video, 3D and documents, with compatible models switchable without rebuilding the workflow. Listed capabilities include text-to-video, image-to-video and AI avatars, and commercial use is supported. Users can self-host or use TongFlow Cloud through a browser or desktop app for macOS and Windows; the desktop app opens the cloud workspace and requires an internet connection. Running a workflow depends on compatible plugins and credentials for the selected providers. Self-Host is free forever. TongFlow Cloud costs $2.99 a month and includes managed hosting, per-user data isolation and encrypted credentials. New cloud accounts receive seven days without a card; eligible first-time subscribers can then start a separate seven-day trial that requires a card. Model API and GPU compute charges are billed separately by connected providers, and TongFlow does not sell generation credits. Self-hosted workflows and materials are stored locally, with no telemetry to project authors according to the privacy policy.