The latest articles on DEV Community by TTyler (@ttyler_e27fd095e210f0ca6d). https://dev.to/ttyler_e27fd095e210f0ca6d https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4227036%2F944a82fb-8a6d-4e4c-a773-e8f542b082b4.png https://dev.to/ttyler_e27fd095e210f0ca6d en TTyler Wed, 04 Nov 2026 19:06:55 +0000 https://dev.to/ttyler_e27fd095e210f0ca6d/how-i-built-castremix-swap-the-lead-character-in-any-short-video-with-ai-4ad1 https://dev.to/ttyler_e27fd095e210f0ca6d/how-i-built-castremix-swap-the-lead-character-in-any-short-video-with-ai-4ad1 <p>I've been building <a href="https://www.castremix.com" rel="noopener noreferrer">CastRemix</a>, a tool for AI video character swaps.</p> <p><strong>What it does:</strong> you upload a short reference video (2–30s) plus a photo of your character, and it generates a new take where your character becomes the lead.</p> <p><strong>How to get a good first result</strong></p> <ol> <li>Pick a short clip with one performer, clear movement and a steady camera.</li> <li>Use a clear character photo with a similar pose and framing.</li> <li>Check the credit quote before generating, then review identity, motion, hands and scene consistency.</li> </ol> <p><strong>Limits worth knowing:</strong> identity, motion, camera and background can drift during generation, and exact face replacement or lip sync isn't guaranteed, so start with one short test.</p> <p>Try it at <a href="https://www.castremix.com" rel="noopener noreferrer">https://www.castremix.com</a> — feedback welcome in the comments!</p> ai video showdev webdev