Real AI agent use cases, with sources and setup prompts
Short answer: Record clean audio of your own voice, create a clone in a voice tool, then let an agent write the script and generate the narration from it. Builders below had Claude produce a five-minute documentary with an ElevenLabs voiceover in under 20 minutes, trained a HeyGen professional voice clone on 30 minutes to 2 hours of audio, used the open-source Voicebox repo to clone a voice from about 10 seconds of audio in 23 languages, built a fitness coach that talks in a cloned voice made with Fish Audio, and turned EPUB books into audiobooks. Only clone voices you own or have written permission to use, and label AI narration where platforms require it.
Narrated videos, audiobooks, dubbing and cloned-voice assistants people made with AI voice tools and agents. 24 matching use cases below, each with a public source.
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apkmap0 runs a production pipeline with thumbnails from Grok Bot or Claude Code, Qwen-powered editing, open-source text-to-speech voiceover and Playwright for uploads.
He built a mobile game with code from Claude Opus 5.5 and voice and sound from ElevenLabs, with no game engine and no paid assets.
tejas3732 had Claude make a 5-minute documentary from one prompt in under 20 minutes: script, ElevenLabs voiceover, animation, music and sound design synced to the words.
A filmmaker made a short AI film for CharGen. When the first take moved the set, he rewrote the prompt so the camera had to reveal what was already there, then added an ElevenLabs voice and edited in HyperFrames.
Wind & Tide is a 3D journey through Taiwan's offshore wind farms built with Claude Code and Opus 5.5, React, TypeScript, Three.js, GLSL and FFT ocean waves, narrated with Gemini text-to-speech.
A filmmaker made a short about the last human employee in an office run by robots. Video came from Seedance 2.5, keyframes from FLUX and GPT Image, voices and music from ElevenLabs, and upscaling from Topaz, all run through his own film studio app built with Claude Code.
He is making an anime with GPT Image 2 for scenes and storyboards, Suno for music, Freesound for effects, Seedance 2.5 for clips, ElevenLabs v4 for voices and CapCut for editing and color.
A user asked Grok Bot for an explainer video and got voiceover and detailed motion graphics from a first, simple prompt.
A creator made a 30-second animated recap of The Hangover with Claude Opus 5.5 and ElevenLabs: no video model and no After Effects, every frame is code.
A parent built a Midtown Madness-style driving game set in Chicago for his daughter in a week: Claude did the frontend and design, ChatGPT the backend, performance and multiplayer, ElevenLabs the music and sound effects, and Tripo the cars.
HBCoop_ made the short film THE WELD with Nano Banana Pro images, Seedance 2.5 video, ElevenLabs audio and an edit assembled with Claude Code.
A software engineer with zero game dev experience built a game with ChatGPT, Claude, Godot, Tripo, Blender MCP and ElevenLabs, and published the full workflow as a free playbook.
A builder made a dynamic Remotion video template in Cerevisor with Gemini 4 Argon: input a topic, audience and style, and agents storyboard, code the animation and call ElevenLabs for voiceover before rendering the MP4.
flowreel is an open-source (Apache-2.0) Claude Code plugin built with Claude Code. One Playwright flow becomes a release gate, the evidence that it passed, and a narrated product demo video.
In a 7-day AI video challenge, the author fed Claude Opus 5.5 a script, UI screens, site context and LinkedIn ad references. After 40 minutes it rendered a first cut; they swapped in an ElevenLabs voice and Artlist music, then reprompted for motion, 3D angles and jump cuts.
With no English subtitles or dubs for many shows, the author packed weeks of scripts and guidance into a repo: clone it, open Codex or Claude and tell it which video to dub into which language. It runs on your machine and keeps each actor's voice.
Instead of slides with a voiceover, he wrote a prompt that makes a narrated lesson with a role-play call, a weak and a strong reply, a recap and a quiz. Claude Code writes it and the open-source HyperFrames renders it.
Runs Opus 5.5 in Claude Code as editor-in-chief over nine skill sets that cover topics, writing, visuals, video editing, sound and scheduling.
Used Claude to plan the channel, research the facts and write scripts for stick-figure stories about the history of money.
A law-firm founder built a voice agent that calls each new lead in his cloned voice, qualifies them and books them with an attorney. It runs on a $10 phone number and a voice sample.
Built a pipeline in one Claude Code session: five parallel research agents with every claim sourced, then plain-English narration.
Scrimba plugged an LLM into its interactive video format and made HN.watch, which turns every HN post into a video.
Write the script, generate narration in ElevenLabs, use voice replacement for lip sync, then finish in your video editor.
Upload an EPUB to Spotify's audiobook tools, pick an ElevenLabs voice, fix pronunciation and publish.
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