In 2026, marketers using AI writing tools fall into two categories.
The first is ‘shipping’ more generic content than ever and watching their engagement drop dramatically.
The second is creating the same high-quality written pieces as before, but it now ranks better and gets shared more often.
Why is this difference so dramatic?
It’s the AI tools they use. They are mostly the same. It’s how the AI writing tools get used that makes the difference.
In this article, we look at eight AI writing tools that you can use to create written pieces that are useful, engaging, and rank better as a result of co-writing with AI.
Which AI writing tools should marketers use?
For most marketers, using one or two AI writing tools is enough.
The eight AI writing tools below cover different writing tasks (drafting, optimizing, editing, repurposing). If you try to use them all, you are overcomplicating your work.
The eight writing tools are ChatGPT, Claude, Jasper, Surfer AI, Notion AI, Lex, GrammarlyGO, and Copy.ai. Each has a slightly different approach and use case, so I will explain each one in more detail.
The Eight AI Writing Tools for Marketing in 2026
1. ChatGPT (GPT-5 series)
ChatGPT (via Codex) is the default for the majority of freelancers and marketers working in an agency.
For any marketer who uses only one AI writing tool, this is the one. The GPT-5 series handles brainstorming, headline generation, outline building, and first drafts at a level that was science fiction two years ago.
Personally, I use ChatGPT 5.6 for planning marketing campaign concepts, audience persona prompts, social caption variations, and repurposing long-form content into short-form.
When used inside a project, ChatGPT keeps a client’s brand voice consistent. ChatGPT’s models have a more non-nonsense approach to writing. It’s like a high-level manager looking over your work and keeping the big picture in mind.
2. Claude (Opus 4.8)
Where ChatGPT is a generalist, Claude is a dedicated writer. It has more flair, more nuance, and more attitude too.
Anthropic’s Opus 4.8 writes content drafts in the 1,500-to-2,500-word range that are 75% readable. It still makes weird statements here and there and mixes up metaphors. Overall, the writing output feels less templated and closer to an actual writer sharing insights on a topic.
For pillar pages, white papers, and any piece where I need the reader to feel a human voice, Claude is where I start. I write the brief, paste my own past pieces as voice samples, and let Claude draft. The edit pass is usually lighter than what ChatGPT gives me at the same length.
The Projects in Claude Cowork is where solo marketers gain the biggest benefits. I keep one Project per client, setup with their brand guidelines, past content examples, and customer persona docs. Every new task I kick off within Claude is like a conversation with an experienced junior writer.
3. Jasper
Jasper is the AI writing tool built specifically for marketing teams. The campaign workflows, the brand voice trainer, the templates for ad copy and landing page sections are all built around marketing use cases rather than general writing.
For solopreneurs and small marketing teams, Jasper makes sense when you want a single tool with marketing-specific guardrails. The brand voice trainer is useful for keeping output consistent across writers (or across the same writer on different days, which is the more honest problem).
I use Jasper less than I used to, because ChatGPT custom GPTs cover most of what Jasper does for me. But for marketing teams without the time to set up custom GPTs across a roster of clients, Jasper is the faster path.
4. Surfer AI
Surfer is the AI writing tool that connects content drafting to SEO. You feed it a target keyword, it pulls the SERP, builds an outline based on what is actually ranking, and drafts inside its own editor with live optimization scoring.
For SEO-driven content, Surfer is the difference between writing in the dark and writing toward a target. I do not use it for thought-leadership pieces or POV writing (the optimization scoring pushes you toward consensus, which is the wrong move there). For mid-funnel and bottom-funnel SEO content that needs to compete for a specific keyword, Surfer earns its subscription every month.
Pair it with a final Claude pass to humanize the draft and you have a tight workflow.
5. Notion AI
Notion AI lives where my notes already live. That is the entire pitch, and it matters more than I expected.
I use Notion AI for in-flow writing inside docs I already have open. Summarizing a client meeting transcript, drafting a follow-up email from notes, expanding a bulleted outline into prose without context-switching to a separate tab. None of these jobs are big enough to justify opening ChatGPT, but they add up to dozens of small wins per week.
For marketers who run their content ops in Notion (which is a lot of solopreneurs and small agencies), turning Notion AI on is the lowest-friction AI writing upgrade available.
6. Lex
Lex is the AI writing tool built for writers rather than for marketers. The interface is the closest thing to a Google Doc with AI baked in. No templates. No campaign workflows. Just text and an AI that helps when you ask.
I use Lex for first-person blog drafts where I want to write most of the piece myself with AI as a sparring partner. The “ask Lex” command is great for unsticking a paragraph or rephrasing a clunky sentence without breaking flow. For consultants and personal-brand builders who write in their own voice, Lex respects the writing process more than the marketing-focused tools do.
7. GrammarlyGO
Grammarly’s generative layer is the editor I trust most. I draft elsewhere, paste the final version into Grammarly, and let it suggest concision edits and consistency fixes before I publish.
Generative features are valuable for polishing the last 10 percent of a draft. I avoid using Grammarly for initial writing since it produces generic content like many business writers online. However, it effectively identifies errors I overlook after prolonged review.
8. Copy.ai
Copy.ai is the short-form specialist. Headlines, ad copy variations, social hooks, subject lines, product descriptions. Anywhere I need fifteen variations of the same idea, Copy.ai is faster than ChatGPT because the templates are already tuned for marketing copy.
For solopreneurs running their own social and email programs, the bulk-generation workflows save real time. For longer content, Copy.ai is not the right choice.
How do I use AI writing tools on real client work?
The honest answer: I use two or three tools per piece, not eight.
For a typical SEO blog post for a client, the stack is Surfer AI for outline and optimization, Claude for drafting, Grammarly for the finishing pass. ChatGPT is used when I need a headline variation or a meta description.
For thought-leadership pieces or pillar pages in a client’s voice, the stack is Claude (with the client Project pre-loaded) for the draft, Lex for writing large chunks with AI as a sparring partner, and Grammarly to finish.
For social and email, I run ChatGPT for the strategic angle (what should this campaign actually say) and Copy.ai for the variation grind (give me fifteen subject lines around this hook).
The trap with AI writing tools is collecting them. The unlock is picking three and getting fast inside them.
The Bigger Change in AI Writing for Marketers
The AI writing tools that I used most in my daily work share one trait: they make my writing better without making it generic.
Most AI writing tools optimize for speed first and quality second.
The ones that are most valuable to you as a writer do the reverse. Claude protects your brand voice. Surfer connects writing to search intent. Lex respects the writer’s flow. Grammarly catches final mistakes that would make the piece look amateur.
If you are a solopreneur, SME marketer, or personal-brand builder reading this, just pick the two AI writing tools that match your dominant content type (long-form, short-form, SEO, voice-driven) and use them every day for thirty days. By the end of that time, you will know what works best for you.
Want to learn more about AI marketing tools?
I cover the broader stack for content marketing in my piece on AI content marketing, and the specific case for AI marketing tools that small businesses need is a useful companion read if you are building out a wider stack. The AI marketing strategy framework I use with clients is where these tools fit into a broader plan.
– Daniel Midson-Short