Marker

Marker: a word processor for the part of writing nobody builds for

Marker (marker.page) is an AI-native word processor — "a space for thinking and writing" — aimed at the stage most tools ignore: rough drafts, half-formed thoughts, and the work that happens before something is ready to share. Rather than generating text for you, its AI is designed to help writers discover what they actually think, supporting ideation, flow, and revision from first idea to final draft. It targets newsletter and Substack writers, journalists, creative writers, business writers, and academics.

The London-based company emerged from stealth on July 9, 2026 with a $13M seed led by Index Ventures, with LocalGlobe and a pointed set of angels: Steve Newman (co-founder of Writely, which became Google Docs), Cal Henderson (Slack co-founder), and Thomas Wolf (Hugging Face). Co-founders are Jon Steinback, formerly DeepMind's brand and creative lead, and Ryan Bowman, who built platforms for writers at literary and talent agencies.

Key Features

• Ideation support for figuring out what you want to write before drafting
• Writing tools designed to keep you in flow rather than interrupt it
• Revision support while working through successive drafts
• Collaboration: add a co-writer or a commenter
• Built explicitly for rough drafts and pre-publication work
• App at my.marker.page; access via email waitlist (invite codes circulate)

Ideal Use Case

A serious writer — a Substack author, journalist, or academic — who finds ChatGPT-style generation corrosive to their own voice but wants AI leverage in the thinking and revising stages. Early testers used Marker for blogs, business papers, memos, and novels.

How Marker differentiates

Google Docs and Word are built for output and formatting; Marker is built for the pre-draft thinking stage — with the co-founder of Google Docs' ancestor on the cap table as a knowing wink. Against ChatGPT and generator-style tools, Marker is explicitly anti-"slop": the AI works with the writer's own craft instead of replacing it. Its closest analog is Lex, but with a DeepMind creative pedigree and Index Ventures' backing. Production credibility: $13M seed led by Index Ventures (July 2026), angels from Google Docs, Slack, and Hugging Face, and a founding team from DeepMind and the literary world.

FAQ

Is Marker available yet? Not generally — as of July 2026 access is waitlist-only via marker.page, with no public launch date announced.

How much does Marker cost? Pricing has not been published; the product is in a gated beta.

Who is behind Marker? Jon Steinback (former DeepMind brand/creative lead) and Ryan Bowman, backed by Index Ventures, LocalGlobe, and angels including the co-founders of Writely/Google Docs and Slack.

Is Marker the same as marker.io? No — marker.io is an unrelated bug-reporting tool, and the open-source "marker" PDF converter is unrelated too. This is marker.page.

tl;dr

Marker is the most credentialed bet yet on AI writing software that serves the writer's thinking instead of replacing it — $13M from Index Ventures, angels who built Google Docs and Slack, and a waitlist worth joining if you write for a living.

Related

Looking for more options? Browse the AI Content Writing directory or read our best AI writing tools listicle. Marker is also tracked on Crunchbase.