Everything your biotech marketing team needs
Source-grounded content generation, enterprise Brand Kit, guided tone controls, and a three-call AI pipeline that catches hallucinations before you ever see them.
Three Claude AI calls. Every single generation.
Where other tools run one LLM call and hope for the best, Zeplyn runs three, specifically sequenced to catch errors before they reach you.
Call 1: Completeness Check
Is everything here?
Before a single word is written, Claude analyses your extracted source material and checks for completeness. Missing mechanism of action? Unclear efficacy endpoint? It flags it with a warning, giving you a chance to upload a supplementary source before generation begins.
Call 2: Content Generation
Write it. Accurately.
The generation call uses only the verified, extracted facts from Call 1 as its context window. No internet access. No hallucinated citations. No invented data. The model is constrained to what your document actually says, and instructed to flag anything it cannot directly substantiate.
Call 3: Grounding Audit
Did it stay on source?
After generation, a dedicated grounding model cross-references every factual claim in the output against the original source. Each sentence receives an individual tag: ✅ Grounded (directly supported), ⚠️ Unverified (plausible but not explicitly stated), or ❌ Contradicts Source (factually inconsistent). You see all tags before you copy.
Create fresh content. Or reshape what you have.
Zeplyn handles both sides of your content lifecycle: generating from source documents, and repurposing content across channels.
Generate Mode
Start with a raw source document (a whitepaper, clinical brief, product datasheet, regulatory filing) and generate platform-ready content from scratch. Ideal for launching a new dataset, publishing trial results, or announcing a product milestone.
- → Upload PDF, URL, DOCX, or paste text
- → AI extracts key facts and claims
- → Completeness check before generation
- → Choose format, audience, and tone
- → Full grounding audit on output
Repurpose Mode
Take existing content (a LinkedIn post, a blog article, a press release) and adapt it for a different platform, a different audience, or a different stage of the funnel. No re-uploading source documents needed.
- → Paste or upload existing content
- → Select the destination format
- → Adjust tone and audience settings
- → Output stays grounded to original content
- → Perfect for cross-channel campaigns
Your brand. Built in once. Applied everywhere.
Upload your logo, define your primary and secondary brand colours, and set your positioning statement. Zeplyn applies your brand identity to every piece of content, and composites your logo into generated images automatically.
- ✓ Logo upload (PNG/SVG) with compositing into generated images
- ✓ Primary and secondary brand colour configuration
- ✓ Tagline and positioning statement saved to kit
- ✓ Voice Profiles: separate profiles per spokesperson or channel
- ✓ Applied automatically to every generation, no re-configuration needed
Brand Colours
Voice Profiles
Positioning Statement
"Precision biologics manufacturing for Phase I through commercial: validated, scalable, partner-first."
Two questions. Perfectly calibrated output.
Instead of asking you to write a prompt, Zeplyn asks two structured questions. Your answers determine every aspect of the output: vocabulary, technicality, call-to-action framing, and length.
Who are you writing for?
Selecting "Healthcare Professionals" enables clinical vocabulary, ICH/FDA framing, and peer-level technicality.
What is the goal of this content?
Selecting "Build Credibility" prioritises data-forward language, peer citations, and authoritative structure.
12 formats. One source document.
Every format is optimised for its platform's algorithm, character limits, and engagement patterns, while staying grounded in your science.
LinkedIn Brand Post
2crProfessional, data-led posts from your company page. Optimised for reach among HCPs and industry peers. Includes hook, data statement, and CTA.
LinkedIn Founder Post
2crFirst-person founder voice. Narrative-driven with scientific credibility intact. Built for personal brand reach and investor visibility.
LinkedIn Carousel
3crMulti-slide structured content. Each slide is individually grounded. Slide count, headline hierarchy, and flow optimised for dwell time.
Blog Post
7crLong-form SEO-ready article with H1/H2 structure, keyword integration, introduction, body sections, and conclusion. 800–1,800 words.
X Thread
1crNumbered tweet thread with hook tweet, 4–8 body tweets, and a closer. Each tweet stays under 280 characters. Data-forward with biotech hashtag suggestions.
WhatsApp Caption
1crShort, bold, message-ready content for WhatsApp broadcast lists. Emoji-aware, mobile-optimised, designed to drive quick engagement or responses.
Meta Post
1crFacebook and Instagram-optimised captions. Shorter sentences, broader accessibility without sacrificing accuracy. Includes hashtag block.
Reddit Post
1crCommunity-native tone for r/biotech, r/genomics, and niche subreddits. Formatted for genuine discussion, not promotional. Includes suggested flair.
Google Business Post
1crShort, local-intent content for Google Business Profile updates. Optimised for local SEO signals and news/update post type format.
Pinterest Pin
1crVisual-first description with keyword-rich copy. Written for science educators, patient advocates, and consumer biotech audiences on Pinterest.
Substack Newsletter
5crFull newsletter with subject line, preview text, intro, body sections, and sign-off. Science-forward voice with subscriber engagement hooks.
Substack Notes
1crShort-form Substack Notes optimised for engagement and discovery. Punchy, science-credible, and formatted for the Notes feed format.
Your IP stays yours. Always.
Biotech data is sensitive. Zeplyn is built with that as a first principle, not a compliance checkbox.
Files deleted after extraction
Uploaded documents are deleted from Zeplyn servers the moment fact extraction is complete. They are never cached, never indexed, and never associated with your account after the session ends.
End-to-end encryption
All file transfers, API calls, and session data are encrypted in transit (TLS 1.3) and at rest (AES-256). Extracted fact sets are scoped to your session and not accessible across accounts.
No AI training on your data
Your documents, extracted facts, and generated content are never used to train Anthropic's Claude models or OpenAI's image models. We have contractual agreements with our AI providers that enforce this.
DPDP Act 2023 compliant
Zeplyn is aligned with India's Digital Personal Data Protection Act 2023 and follows GDPR-equivalent data minimisation principles for users in the EU and EEA. Full details in our Privacy Policy.