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Copyium by GTM S t a c k

Features

Everything you need to write, optimize, and publish content at scale with AI.

AI Blog Writer

Generate SEO-optimized blog posts from briefs. Enter your topic and keywords, and Copyium creates structured, engaging content ready for editing or publishing.

  • Topic-to-draft
  • SEO optimization
  • Brand voice
  • Outline generation

Content Optimizer

Paste existing content and get actionable improvements. Copyium analyzes readability, SEO coverage, keyword density, and engagement, then rewrites weak sections.

  • Readability analysis
  • SEO audit
  • Auto-rewrite
  • Before/after comparison

Long-Form Writer

Create whitepapers, ebooks, case studies, and comprehensive guides. AI handles the structure and first drafts so your team can focus on insights.

  • Chapter generation
  • Research integration
  • Table of contents
  • Export to PDF

Brand Voice

Train the AI on your brand tone, style guidelines, and vocabulary. Upload samples and style guides — every generated piece will sound authentically yours.

  • Voice training
  • Style guide upload
  • Tone consistency
  • Multi-brand support

Content Briefs

AI-generated content outlines with research, competitor analysis, and suggested structure. Give your writers a head start with detailed briefs.

  • Auto-research
  • Competitor analysis
  • Keyword mapping
  • Structure suggestions

SEO Scoring

Real-time content scoring as you write. Track keyword density, readability grade, heading structure, internal linking, and meta tag optimization.

  • Real-time scoring
  • Keyword tracking
  • Heading analysis
  • Meta suggestions

Collaborative Editor

A team-first editor with real-time collaboration, inline AI suggestions, commenting, and approval workflows. Write together, ship faster.

  • Real-time collab
  • Inline AI assist
  • Comments & threads
  • Approval workflow

Content Repurposing

Turn one blog post into social threads, email newsletters, LinkedIn posts, ad copy, and more. Maximize the ROI of every piece of content.

  • Social posts
  • Email copy
  • LinkedIn threads
  • Ad variations

Analytics

Track content performance, publishing velocity, SEO score trends, and team productivity. Understand what content drives results.

  • Performance tracking
  • SEO trends
  • Team metrics
  • ROI reporting

Integrations

Publish directly to WordPress, HubSpot, and Webflow. Connect your CMS, analytics, and distribution tools for a seamless workflow.

  • WordPress
  • HubSpot
  • Webflow
  • API access

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