Open-source HeyGen alternatives

Open AI UGC is a free, open-source application for creating user-generated-content style video ads with AI actors. The README presents it as an alternative to commercial services such as Arcads and MakeUGC, without per-seat pricing, a locked actor library or vendor watermark. It targets marketers and small teams who produce short-form social ads.

The workflow is to paste a script, upload a reference face or product image, choose a video model, and generate a 9:16 vertical clip suited to TikTok, Reels or Shorts. The tool supports several video generation models, including Veo 3.1, Seedance 2, Grok Video and Happy Horse 1. Generation is powered by Muapi, an outside API service, so model usage is handled there rather than on your own hardware.

The app is built with JavaScript and Next.js, is MIT licensed, and can be self-hosted, with a live demo hosted on Vercel. The README also links related open-source projects for workflow building, video clipping and social scheduling, plus agent skills that let coding assistants automate batches of ad variants from the terminal.

Streamer-Sales is an open-source large language model application built to generate sales pitches for livestream and in-store product promotion. Given a product's features, it produces narration intended to highlight selling points and encourage purchase, aimed at e-commerce sellers and streamers who want AI-assisted sales copy and presentation.

The model is instruction fine-tuned from InternLM2 using xtuner, and the system integrates several components around it: LMDeploy for accelerated inference, retrieval-augmented generation so pitches can draw on up-to-date product manuals without retraining, an agent that can look up shipping information online, text-to-speech generation with emotional tone, automatic speech recognition for voice interaction, and generation of a digital-human presenter video so the pitch is not limited to text.

The stack uses a Vue, Pinia and Element Plus frontend with a FastAPI, Uvicorn and PostgreSQL backend exposing RESTful APIs with JWT authentication, and Docker Compose for one-command deployment. It is written in Python and released under the AGPL-3.0 license.