Published under your byline,
in your voice.
Pennkin learns from your whole archive — articles, podcasts, books, talks, anywhere your work lives — and drafts in your voice. Posts for LinkedIn, threads for X, articles, replies, whatever you publish next. Grounded in your own work, ready to publish.
By voice we mean your authorial style — how you frame, argue, and phrase. Not the sound of you talking; we don't clone audio.
For founders, operators, investors, and independent consultants who should publish weekly — and don't.
Having things to share? 😩 Generic AI sounds like everyone. 😤 Ghostwriters cost $5–15k/month. 💜 Pennkin is the team of agents behind your byline — sparking ideas, drafting your voice, publishing everywhere.
The Pennkin loop
Six stages, one closed loop. Each cycle sharpens the next — your archive grows, your agent gets stronger, your cadence holds.
- 01
Ingest
Drag in articles, paste a YouTube URL, drop in your book, connect a podcast feed. Your whole archive becomes your agent's corpus — voice and memory in one.
- 02
Spark
A scheduled mission, a news event, a topic you type in — anything can fire a draft. Pennkin pulls the relevant context from your archive and the live web.
- 03
Draft
Your agent writes the canonical article in your voice, then formats it per channel: LinkedIn long-form, X thread, Substack post — each tuned to fit.
- 04
Review
Human approval at every step. AI agent reviewers flag voice drift, claim grounding, and tone. Nothing publishes until you say go.
- 05
Publish
One click. LinkedIn, X, Substack — at optimal time per channel. Or schedule the whole week's cadence in a single sitting.
- 06
Learn
Engagement flows back. Posts that landed shape future drafts. Your agent's voice gets sharper every cycle — and the loop returns to step 01.
Style and substance — from every source you have
Your corpus does two jobs at once: shaping how your agent writes (style, voice) and grounding every draft in what you've already said (content, memory). Pennkin pulls from every format you have — text, documents, ebooks, audio, video — because all of it carries both.
Text
Markdown, plain text, your old essays in raw form — the writing without the wrapper.
Documents
PDFs, Word docs, research papers, white papers. Formatted long-form work — yours and your team's.
Ebooks
EPUBs of your published books and long-form chaptered work. The pieces that already carry your byline.
Audio
Podcast appearances, recorded talks, voice memos. We transcribe so your spoken voice joins your written one.
Video
YouTube interviews, conference talks, Loom recordings. Paste a URL — we handle the rest.
Not another AI writer
The category is crowded. Pennkin is the one that stays recognizably you.
Voice fidelity, not voice imitation
Drafts ground on your actual archive — your past articles, your talks, your book. Not generic LLM patterns dressed up to look like you.
Source-grounded, never hallucinated
Every claim cites either your prior writing or a fresh, verifiable web source. The voice is yours; the facts check out.
Approval-in-the-loop, always
Pennkin drafts. You decide what ships. Nothing publishes without your explicit click — your byline stays yours.
Priced as operational infrastructure
Less than a ghostwriter. More than worth the cadence it keeps.
1 agent, 4 articles/mo, LinkedIn + X
1 agent, 8 articles/mo, LinkedIn + X
Shared brand, multi-user
Agencies, 3–10 agents
Five minutes to your first byline. Twenty posts queued by lunch.
Pennkin agents handle the loop — ideate, draft, format, publish. You just hit go.
Try Pennkin now