# How to edit videos with ChatGPT and Codex Thank you for coming from the original @communitynoguer post. https://www.instagram.com/reel/DeIrjNkRAzS/?rpxt=MTV1eThuNzMyOHVoYg== Use ChatGPT to plan the edit and Codex to help implement it when files and processing tools are available. On mobile, copy and customize the instructions; file processing depends on the environment you use. ## Cut the extra pauses. Keep the human rhythm. A thinking pause can drag. A pause that lets an idea land can help. They need different treatment. Like removing extra gaps in a conversation without making someone sound breathless. - Start by flagging pauses around 0.4–0.6 seconds, not automatically cutting them. - Listen to each suggestion. Remove mistakes, repetitions, and pauses that stall the idea. - Keep breaths, emphasis, and complete words. Check that lips and voice stay in sync. PROMPT Analyze my video audio and identify long pauses, mistakes, excessive filler words, and unnecessary repetitions. Propose cuts that improve pacing without cutting words, important breaths, or complete sentences. Keep audio and video synchronized. If processing tools are available, create an edited version. Otherwise, provide a timestamped cut list. Do not claim you edited a file if you only created a plan. ## Give the eyes something new. A visual change can be a closer crop, a phrase on screen, or a supporting image. Every word does not need an effect. Imagine explaining something while pointing at a photo. Change the view when it helps your explanation. - Try changes every three seconds or less only when they help. This is a style guideline, not an Instagram rule. - Alternate the original shot, a moderate zoom, text, or B-roll you have permission to use. - Match changes to important ideas. If a change distracts, return to the simple shot. PROMPT Create a dynamic edit for Instagram Reels, TikTok, and YouTube Shorts. Add cuts or visual changes every three seconds or less when they add value. Alternate the original frame, moderate close-ups, highlighted text, and available supporting images. Sync changes with important phrases. Avoid repetitive movement or cuts that interrupt words or gestures. ## Let your skin look like your skin. Start with a natural picture, then choose a style. A heavy filter does not automatically fix dark or overly yellow footage. Like adjusting a room’s lighting before taking a photo. - Exposure: avoid an image so dark or bright that details disappear. - White balance: correct unwanted yellow, green, or blue casts. - Adjust contrast and saturation moderately. Compare cuts so your face does not change color. PROMPT Analyze the recording’s visual characteristics and propose professional color correction. Prioritize balanced exposure, correct white balance, natural skin tones, and moderate contrast. Use luminance and RGB curves when appropriate. Avoid excessive saturation, crushed shadows, and clipped highlights. Keep cuts visually consistent and avoid extreme adjustments that degrade the picture. ## Move closer to underline an idea. A gentle zoom starts without a jolt and ends without a sudden stop. It does not need to be dramatic to feel intentional. Like leaning in slightly when you are about to say something important. - Try a 105%–115% scale, adjusting for headroom and original quality. - Define the start and end of the movement. Those points are called keyframes. - Ask for a gentle start and finish. Bézier curves control acceleration and deceleration. PROMPT Apply gentle zooms to the video’s most important phrases. Use keyframes with Bézier curves and gradual acceleration and deceleration. Start around 105%–115% scale, adapting to the framing. Avoid abrupt movement, unnecessary scale changes, and excessive quality loss. Keep the main subject properly framed throughout. ## Smooth movement. Sharp text. Motion blur is a short trail accompanying fast movement. It does not mean blurring the whole screen. Like the trail of an object moving quickly past a camera. - Use it on fast movement or a moving graphic. - Match intensity to speed; slow movement may not need it. - Keep faces, captions, and important information readable. PROMPT Apply motion blur only to elements with significant movement. Match blur strength to each animation’s speed. Avoid blurring faces, subtitles, and information that must stay readable. Prioritize a natural appearance and preserve overall sharpness. ## Most of the time, a good cut is enough. A shot change does not need a spectacle. Use a transition to connect moments, not because the software has lots of effects. Think of punctuation: a comma helps; twenty exclamation marks get tiring. - Use direct cuts for most phrases and explanations. - Use a short blur or zoom when a scene change calls for it. - For some quick transitions, try 0.15–0.35 seconds as a starting reference. Adjust by watching and listening. PROMPT Use direct cuts as the main transition. When justified by the content, add brief blur or zoom transitions with smooth motion curves. Avoid excessive effects, unnecessary flashes, or transitions that distract from the message. Preserve visual continuity and audio synchronization. ## Make it understandable even without sound. Short phrases, good contrast, and correct words come first. Animation comes later. Captions can feel like part of your brand too. Like a sign you can read at a glance. - Use your font and two colors: one for reading and one for emphasis. - Use short phrases and review names, spelling, and synchronization. - Leave room for platform controls and avoid faces or important details. Review a phone preview. PROMPT Create subtitles synchronized with the original audio. Use [BRAND FONT], [MAIN COLOR], and [ACCENT COLOR]. Break subtitles into short, readable phrases. Highlight only words that add emphasis. Keep text within safe areas for Reels, TikTok, and YouTube Shorts. Do not place captions over faces or important information. ## MASTER PROMPT Act as a professional video editor for Instagram Reels, TikTok, and YouTube Shorts. Turn my original recording into a natural, dynamic, polished video without changing my meaning or adding unnecessary effects. PROJECT Video type: [EDUCATIONAL / AD / PODCAST / PERSONAL] Format: vertical 9:16. Main platform: [INSTAGRAM / TIKTOK / YOUTUBE]. Brand font: [FONT DE TU MARCA]. Main color: [COLOR PRINCIPAL]. Accent color: [COLOR SECUNDARIO]. Style: modern, clean, dynamic, professional. 1. REVIEW THE MATERIAL Identify the main message, key phrases, mistakes, repetitions, and unnecessary pauses. If you cannot access the video or audio, request the file or a timestamped transcript. Do not invent observations. 2. CLEAN UP PAUSES Start by flagging pauses around 0.4–0.6 seconds for review, adapting to the speaker and background noise. Remove only pauses that harm pacing. Preserve natural breaths, expressive pauses, complete words, and meaning. 3. BUILD THE RHYTHM Add visual changes every three seconds or less only when useful. Alternate original framing, moderate zooms, and available supporting visuals. Match changes to the message, without cutting words or important gestures. 4. CORRECT THE COLOR Review exposure, white balance, contrast, and saturation. Use luminance and RGB curves where appropriate. Keep natural skin tones and consistent cuts. Avoid excessive adjustments. 5. ADD GENTLE ZOOMS Use keyframes with Bézier easing and a gradual start and stop. Try 105%–115% scale, adapting to framing and source resolution. Keep the subject properly framed. 6. USE MOTION BLUR SELECTIVELY Match blur to motion speed. Keep static elements, faces, and captions readable. 7. KEEP TRANSITIONS SIMPLE Favor direct cuts. Use short blur or zoom transitions only when they improve continuity. Avoid excessive effects. 8. CREATE CAPTIONS Synchronize captions with the original audio. Use [FONT DE TU MARCA], [COLOR PRINCIPAL], and [COLOR SECUNDARIO]. Keep phrases short, highlight meaningful words, and leave space for platform controls. Do not cover faces or important information. Check spelling and names. 9. REVIEW AUDIO Keep the voice natural. Adjust levels as needed and reduce background noise without introducing artifacts. Avoid sudden volume changes between cuts. 10. EXPORT Create an MP4, 1080 × 1920, 9:16, H.264 video with AAC audio. Preserve source frame rate when compatible. Check audiovisual synchronization and picture quality. IMPLEMENTATION WITH CODEX If you have the source file and a suitable execution environment, build a reproducible workflow with FFmpeg, Python, and additional tools as needed. Check dependencies before running and organize processing into stages. Keep the original untouched. Produce a final file and change log. If an operation cannot be implemented, explain the limitation and offer an alternative. Do not claim a video was edited if you only produced instructions or code. Before processing the full recording, create a 15–30 second sample for review. Inspect the exported file, captions, synchronization, and audio before calling the edit finished. EXPECTED RESULT A natural, dynamic video consistent with my brand, ready for review before publication. Workflow: prepare the original; share the source or a timestamped transcript; copy and customize the prompt; ask for a timestamped plan; implement with Codex in a suitable environment; review the sample, then the complete export.