Dr Lambda (official product name ChatSlide) is an AI presentation platform, and the company states it has been used by more than 280,000 users. It can turn PDFs, documents, videos, links, and ideas into professional presentations, videos, digital human videos, and posters in minutes.
[Main Uses] The platform is aimed at knowledge sharing and content repurposing scenarios, converting a single knowledge source into slides, videos, posters, and charts without repetitive work while maintaining brand consistency. The officially described application directions include: course creators turning workshop notes or PDFs into course decks, lead magnet carousels, or course module introductions; enterprises turning briefs, transcripts, or reports into editable, brand-compliant presentations and exporting PowerPoint with one click; medical professionals turning PubMed papers, guidelines, or case notes into clinical, CME, or grand rounds decks; consulting and legal teams turning briefs, contracts, discovery PDFs, and client memos into clear presentation decks; and researchers preparing conference talks, poster sessions, and academic papers (supporting more than 15 languages).
[Main Capabilities]
- Slides and insights: convert documents into visual slides and provide key insights.
- Video and digital humans: convert documents into videos with AI digital humans, and users can use their own voices to achieve personalized dynamic presentations.
- Charts and analysis: generate dynamic charts and data visualizations.
- Poster design: turn ideas into visual, professional posters.
- Content generation workflow: generate an outline in three steps and flexibly modify the content; supports rapid AI content generation with domain insights, customizable tags, and multiple outline styles; includes ChatSlide Bot for real-time adjustments, and supports personalized voice and digital human cloning.
- AI image models: use more than 25 AI image models in one subscription. The officially listed models include Grok, Nano Banana 2, Wan 2.6, GPT Image, Imagen 4, DALL-E 3, Flux, Seedream, and others. Models can be selected per slide, with no additional account or API key required.
- Digital human videos: provides more than 500 on-camera digital human avatars. After choosing a presenter and pasting a script, a narrated video is rendered in minutes, with realistic lip sync, natural intonation, and more than 28 voice languages; provides clothing options such as business, formal, casual, and technical, standing or sitting framing, and voice cloning from a 30-second sample of one's own voice.
- Free toolset: 200 Multiple free PowerPoint and PDF tools, most require no registration and run server-side. Official examples include: Compress PowerPoint (can reduce size by up to 90% while preserving fonts, images, and animations), Merge PPTX (preserves slide masters, themes, and speaker notes), PDF to PowerPoint (preserves text, tables, and images), render decks as MP4 videos with AI voiceover and on-camera digital humans, Gamma to PowerPoint (one-click export to editable PPTX), readability check (checks spelling errors, contrast issues, oversized text, and missing alt text).
[How to use] Upload PDF, DOCX, PPTX, TXT, or various image formats; you can also import content from URLs, YouTube videos, and research databases such as PubMed, OpenAlex, and ClinicalTrials.gov. The AI then generates an outline and slides, and users can edit text, change layouts, fine-tune content, and then export to PPTX, PDF, or generate an AI video. The generated PPTX is compatible with Microsoft PowerPoint, Google Slides, Keynote, and LibreOffice Impress. Officially, short topics usually generate 8-15 slides, while longer documents can generate 20-40.
[Use cases] Officially listed industries include healthcare (physicians and medical educators create clinical lectures, conference presentations, and pharmaceutical training decks, covering cardiology, oncology, etc.), education (professors and students at more than 750 universities worldwide create lecture slides, coursework presentations, and thesis defenses), enterprise (employee onboarding, leadership enablement, compliance decks, and product training materials), research (conference presentations, poster sessions, and academic papers, supporting more than 15 languages), consulting (more than 12,000 professionals create pitch decks, quarterly reviews, investment proposals, and franchise presentations), legal (lawyers and legal teams convert case briefs, contracts, discovery PDFs, and client memos into clear presentation decks).
[Pricing and versions] Officially offers a free tier that includes 100 credits and PDF export, with no credit card required. Paid plans unlock PowerPoint export, watermark removal, more credits, digital humans, voice cloning, custom branding, image extraction, private projects, direct customer support, and more. Officially listed plans include: a plan suitable for small projects (500 credits/month, up to 20 slides per project, up to 5 resources at 20 pages each, 20MB file limit, export PDF and PPTX, LLM is GPT-5.6 Terra, AI images are Imagen 3 and 4, AI video is Veo 3.1); a more flexible plan (2,500 credits/month, up to 40 slides per project, up to 10 resources at 40 pages each, 50MB file limit, export PDF/PPTX/Keynote, custom branding and logo, image extraction, clone voice with 1 profile, private projects, direct customer support); a fully creative control plan (unlimited credits, up to 60 slides per project, up to 20 resources at 40 pages each, 100MB file limit, LLMs include GPT-5.6 Terra and GPT-6 Astra, more than 500 Jogg digital humans and the ability to clone your own likeness, clone voice with 5 profiles, HIPAA compliance available upon request). All plans offer a 14-day money-back guarantee.
[Limitations and notes] Officially, the free tier uses the GPT-5.6 Luna model, while the paid Ultimate tier can use GPT-6 Astra for higher-quality generation; for images, 29 AI models are offered, including Imagen 4, FLUX, and Stable Diffusion (slightly different from the earlier statement of "more than 25"; the official original text shall prevail). HIPAA compliance is available upon request. Other details not specified in the materials (such as specific price amounts, the availability scope of some models, etc.) are not yet provided.
