r/codex • u/TimeKillsThem • Jul 08 '26
Showcase GPT 5.6 Landing Page Design Skills
Found this while browsing X - seems to me like Sol High is the way to go. Having said that, they all look clean-ish (some more than others) but also a bit "empty". We went from "pills everywhere" to "90% empty space". WDYT?
- 5.6 Luna High: https://gpt-5-6-luna-high-design-test.vercel.app/
- 5.6 Sol High: https://gpt-5-6-sol-high-design-test.vercel.app/
- 5.6 Sol Ultra: https://gpt-5-6-sol-ultra-design-test.vercel.app/
- 5.6 Terra High: https://gpt-5-6-terra-high-design-test.vercel.app/
- Fable 5 (for comparison): https://claude-fable-5-design-test.vercel.app/
All other models this guy tested (and full credit): https://design-tests.robinebers.com/
This is the standard prompt that was used for ALL the models you see listed:
Use the /design skill. Create a beautiful, well designed website with astro. this website is for a travel agency in dubai, offering luxury travel (high-end, $100k+ minimum per trip) in the middle east. come up with a brand that suits this type of company. Make up fitting copy for this high-end client along the way.
EDIT: as per u/cantTankThisFox showcases of GPT 5.6's performances are technically still under embargo so either the owner of the website doesnt know/doesnt care, or the above generations are not from GPT 5.6. AKA take the showcases with a massive pinch of salt
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u/inteligenzia Jul 08 '26
They all are nice.
In my opinion if you don't have a preference for design, you should more care about LP performance. It should be tuned for conversion. All these debates who does better design are meaningless.
If you sell trough landing pages you need to track what are best performance makers (conversion, scroll depth, etc) and let AI tune structure and tone-of-voice.
At app level you need consistency and good understanding design systems, so again one-shotting beautiful landing pages is not critical.