Show HN: AutoShorts – Local, GPU-accelerated AI video pipeline for creators

Summary

AutoShorts Automatically generate viral-ready vertical short clips from long-form gameplay footage using AI-powered scene analysis, GPU-accelerated rendering, and optional AI voiceovers. AutoShorts analyzes your gameplay videos to identify the most engaging moments—action sequences, funny fails, or highlight achievements—then automatically crops, renders, and adds subtitles or AI voiceovers to create ready-to-upload short-form content. 🎬 Example Output Here are some shorts automatically generated from gameplay footage: Sample 1 Sample 2 Sample 3 Sample 4 ✨ Features 🎯 AI-Powered Scene Analysis Multi-Provider Support : Choose between OpenAI (GPT-5-mini, GPT-4o) or Google Gemini for scene analysis : Choose between (GPT-5-mini, GPT-4o) or for scene analysis Semantic Analysis Modes : action — Focus on intense combat/action moments funny — Detect fail compilations and humorous moments highlight — Find memorable achievements and clutch plays mixed — Auto-detect the best category for each clip (recommended) : 🎙️ Subtitle Generation Speech Mode : Uses OpenAI Whisper to transcribe voice/commentary : Uses OpenAI Whisper to transcribe voice/commentary AI Captions Mode : AI-generated contextual captions for gameplay without voice : AI-generated contextual captions for gameplay without voice Caption Styles : gaming , dramatic , funny , minimal , or auto : , , , , or PyCaps Integration : Multiple visual templates including hype , retro-gaming , neo-minimal : Multiple visual templates including , , AI Enhancement: Semantic tagging and emoji suggestions (e.g., "HEADSHOT! 💀🔥") 🔊 AI Voiceover (ChatterBox TTS) Local TTS Generation : No cloud API needed for voice synthesis : No cloud API needed for voice synthesis Emotion Control : Adjustable emotion/exaggeration levels for English : Adjustable emotion/exaggeration levels for English Multilingual Support : 20+ languages including Japanese, Korean, Chinese, Spanish, French, and more : 20+ languages including Japanese, Korean, Chinese, Sp...