Napkin AI vs Sider

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

Powerful collaborative visual workspace with robust AI brainstorming and diagramming tools, but broader feature set.

Generates beautifully styled presentations and documents from text prompts, though less focused on inline diagramming.

Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.

Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.

Turn text and data into polished infographics, reports and videos with AI

Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.

Collaborative whiteboard featuring built-in AI tools for flowcharts, mind maps, and diagrams.

Specialized in AI diagramming, mind maps, and flowcharts, but lacks Napkin's seamless inline text integration.

Transforms natural language into structured mind maps and visual flowcharts on an infinite canvas.

Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser