ChatSlide vs OpenCharts
ChatSlide
chatslide.aiOpenCharts
opencharts.comSide by side
| Figure | ChatSlide | OpenCharts |
|---|---|---|
| Price from | $8.25/mo | $9.99/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| API | — | Yes |
| Plans published | 8 | 4 |
| Spec score · AI Presentation Software | 9.0 (#4) | 8.7 (#17) |
| Spec score · AI Presentation Makers | 9.0 (#7) | 9.1 (#4) |
| Free plan | Yes | Yes |
| PPTX export | Yes | Yes |
| Security | Uploads are encrypted in transit with TLS and at rest, and ChatSlide says customer content is not used to train AI models. | OpenCharts states that data is protected with TLS 1.2+ in transit, AES-256 at rest, SSO/SAML, RBAC, row-level security, and two-factor authentication. |
| Output Platforms | PPTX files work with PowerPoint, Google Slides, Keynote, and LibreOffice Impress. | web,windows,macos,chrome_extension |
Plans
ChatSlide
- FreeFree
- Plus$8.25 a month
- Pro$14.92 a month
- Ultimate$33.25 a month
- FreeFree
- Plus$99 a year
- Pro$179 a year
- Ultimate$399 a year
OpenCharts
- Free ForeverFree
- Starter$9.99 a month
- Pro$24.99 a month
- Teams$14.99 a month
In their own words
ChatSlide
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.
OpenCharts
OpenCharts is an AI workspace for flowcharts, presentations, notes, code, video, and agents. Theo AI can create these materials from plain-language descriptions. Flowcharts use terminal, process, decision, and data nodes on an infinite canvas, with automatic layout and export tools. The presentation editor supports editable slides, speaker notes, transitions, AI generation, rehearsal coaching, web publishing, and PPTX export. Theo Agents can start on schedules, webhooks, monitoring triggers, or manually; they can use external connectors, human approval gates, and produce deliverables. Connectors include Stripe, HubSpot, Slack, Google Sheets, Discord, Notion, GitHub, and others. A REST API manages project types, and the Theo MCP server provides 113 tools and five readable resources. Each account starts with 10 GB of Drive storage, including Free Forever. That plan costs nothing and includes 500K AI credits and one of each project type. Starter costs $9.99 a month, Pro $24.99 a month, and Teams $14.99 a month with a three-user minimum. OpenCharts says it does not use customer data to train or fine-tune AI models.