The best marketing stack in 2027 is short: an AI assistant you already use (ChatGPT or Claude), an AI marketing agent connected to it for research, creative, posting and paid ads, a design tool for one-off edits, and the ad platforms' own optimization.

Thinking, writing, planning: ChatGPT or Claude
Research, ad creative, posting, paid ads: an AI marketing agent such as Hermoso
Quick design edits: Canva
Paid ads optimization: Meta Advantage+, Google Performance Max
Measurement: Google Analytics and your ad platforms

Assistants started doing the work: ChatGPT and Claude now use connected tools.
Creative got cheap enough to test properly: video models render sound and 30-second takes.
Platforms optimize, you supply the creative: strong, varied creative is the lever you still control.
Pick the assistant your team already uses.
Connect one agent that covers research, creative, posting and ads, so you are not gluing five tools together.
Connect your channels and ad accounts once, and read results back after every post.
Keep a design tool for the odd manual edit.
The 2027 AI marketing stack
A short stack that covers the whole job. By Hermoso AI.