ChatSlide vs Gamma

ChatSlide turns documents, topics, and research into presentations using AI generation and summarization. Users can upload notes or files, import material from supported sources, or enter a topic; the platform arranges content into slides with layouts, images, and speaker notes. Its 19 editing tools can add examples, rewrite content by grade level, and refine slides. Upload formats include PDF, DOCX, PPTX, TXT, and images; content sources also include URLs, YouTube, PubMed, OpenAlex, and ClinicalTrials.gov. Presentations can be exported as PowerPoint, PDF, or Keynote, and decks can be rendered as narrated videos with AI voiceover in more than 30 languages. The free tier includes 100 credits and PDF export; PowerPoint export is paid, and no credit card is required to start. Paid plans list project limits from 30 to 60 slides. Presentations are private by default, and free-plan uploads may be deleted after up to 30 days.

Gamma is a visual communication platform for creating presentations, documents, websites, social media, and graphics with an AI agent. Users can begin with a prompt, outline, or file, then refine the result with AI or manual editing. For presentations, Gamma offers text-to-presentation creation, smart layouts, templates, custom themes, and AI-generated visuals. It imports PDF and PowerPoint files and exports to PDF, PowerPoint, PNG, and Google Slides. Projects are private by default and can be shared with selected people, a team, or publicly, with real-time collaboration. Teams can use shared workspaces, templates, brand controls, and custom instructions; Enterprise lists SSO, SCIM, permissions, and admin controls. Gamma has a mobile app but no desktop app. Its free plan costs nothing and allows up to 10 slides per prompt, with PDF and PPTX import and several export formats. Pro lists up to 10 custom domains and Ultra up to 100. Gamma says Business and Enterprise workspace content is excluded from AI training, while individual workspace users can opt out in account settings.