HermesA writing space that understands you
AI writing software
for novelists.
In your voice.
Hermes is an AI writing workspace for novelists and storytellers. Find the next line, reshape a paragraph, or develop an idea with autocomplete, rewrites, brainstorming, and writing style guidance.
7 days free for eligible users. Then $12 USD/month. Payment method required. Cancel anytime.
A little help. A lot of possibility.
Interactive previewYou write. Pause. Let Hermes pick up the thread in your voice.
The harbor
The harbor stretched below, its water flat as poured lead. Mara leaned on the railing. For the first time in years, she had come back without a reason to leave.
Prewritten examples. No sign-up needed to explore.
Your Voice, Your Rules
Most AI writing tools produce generic text. Hermes analyzes your writing and matches your style automatically.
Automatic Detection
Hermes reads your writing and detects:
Sentence style
Medium (18 words avg)
Vocabulary
Moderate
POV
Third person
Tense
Past
Tone
Literary, introspective
Dialogue
Frequent
Writing Guidelines
Two Levels
Set defaults, then override per novel
User defaults
Your global tone, style notes, and rules
overridden by
Project settings
Per-novel tone, POV, tense, style notes, and rules
Every AI feature — Shared Pen, Autocomplete, Rewrite, Chat — uses your style profile.
Tools for Your Writing
Explore ideas and revisions while keeping the final decisions yours.
Shared Pen
Co-write with AI in real time. Write, pause, and let Hermes continue using your story context and writing guidelines.
Autocomplete
Review suggested next words as you write. Accept a suggestion or keep typing to follow your own direction.
Rewrite
Select a passage and request a clearer, more vivid, or differently styled version. Review the result before keeping it.
AI Chat
Explore characters, plot, pacing, and possible next scenes with an AI writing partner that uses your project context.
One Plan. Writing Essentials.
$12USD/month
7-day free trial for eligible users
• All features — Shared Pen, Autocomplete, Rewrite, AI Chat
• Unlimited projects
• 250,000 words of AI usage per month
• Automatic style analysis
• Export to PDF, DOCX, EPUB, HTML, and TXT
New subscriptions: $12 USD per month. Payment method required for the trial; paid billing begins after 7 days unless canceled. Existing subscriptions may have legacy pricing. View your price in Manage billing.
Start 7-Day Free TrialPlan details and usage limitsQuestions about Hermes
What is Hermes?
Hermes is an AI writing workspace for novelists and storytellers. It combines project organization with Shared Pen co-writing, autocomplete, rewrites, AI chat, and writing style guidance.
How much does Hermes Pro cost?
New Pro subscriptions cost $12 USD per month. The standard plan includes 250,000 words of AI usage per monthly billing period. Existing subscribers may have legacy pricing; Manage billing shows the price for their subscription.
How does the free trial work?
Eligible users who have not used a trial can start a 7-day Pro trial through checkout. A payment method is required. The subscription converts to paid billing after the trial unless canceled. You can manage cancellation through Manage billing in account settings.
Are AI words unlimited?
No. Pro has a standard 250,000-word monthly allowance. AI usage is estimated from token counts; it is separate from words you type yourself. Account overrides and purchased credits can change your available allowance. Pro users can purchase an additional 50,000 words for $5 USD. Check your account usage for your current balance.
Your Novel Deserves Your Voice
Bring your story and style guidelines. Explore suggestions, then choose what fits.
Start 7-Day Free TrialThen $12 USD/month • Eligible users only • Payment method required