The best AI for writing YouTube scripts in 2026
A video that holds viewers needs a sharp hook and disciplined pacing before it needs production value. TulexAI puts the writing, thumbnail and voice models in one subscription: hooks, script and narration from $11/month, the thumbnail model from $23.
On YouTube the hook does most of the work. GPT-5.6 Luna is cheap enough to generate a dozen hooks and keep two, Claude Opus 5 turns the winner into a retention-shaped script, and OpenAI TTS narrates it, all on the $11 plan. GPT Image 2.5 Flare, from the $23 plan, designs a landscape thumbnail.
The recommended AI stack for youtube scripts
From 54+ models in one subscription from $23/mo - these are the ones that fit best.
Text & Chat
- GPT-5.6 LunaStandard
- Claude Opus 5Premium
Image
- GPT Image 2.5 FlarePremium
Voice
- OpenAI TTSStandard
How to do it in TulexAI
- 1
Write the hook
Generate a batch of first-fifteen-second openers built to stop the scroll and set up the payoff. · GPT-5.6 Luna
- 2
Draft the full script
Expand the winning hook into a paced script with clear beats and a payoff that lands where promised. · Claude Opus 5
- 3
Design the thumbnail
Pick the Landscape frame and create a high-contrast, curiosity-driven concept that earns the click without lying about the video, with any in-image text kept to a few words. · GPT Image 2.5 Flare
- 4
Generate the voiceover
Paste the locked script a few paragraphs at a time and turn each part into clear narration in a preset voice, so the channel keeps one sound across uploads. · OpenAI TTS
Tools this replaces
Frequently asked questions
GPT-5.6 Luna for hook volume and Claude Opus 5 for the full script. Both are on the $11/month plan; GPT Image 2.5 Flare, the thumbnail model on this page, needs the $23 plan or higher.
Yes. Write the script, design the thumbnail and narrate the result in one account, so when the angle changes you rerun each step in the same place instead of moving files between three apps.
Generate many and throw most away. Cheap iteration on a low-cost model like GPT-5.6 Luna is what makes testing a dozen openers realistic instead of theoretical.
Yes. OpenAI TTS reads the script, a few paragraphs per request, in a preset voice, so uploads keep one sound even on the weeks you cannot record. Punctuation is your main pacing control, so write each pause as a full stop. Voice cloning is not available on TulexAI.
Hooks, the full script and OpenAI TTS narration all run on the $11 Basic plan. Basic also generates images, but its only image engine is GPT-5 Image Mini. GPT Image 2.5 Flare starts on the $23 plan.
Everything youtube scripts need, one subscription
40+ AI models - GPT-5, Claude Opus 5, Gemini 3.1, image, video & voice. One subscription from $11/mo.
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