Notion vs OpenAI

Notion — Application · Private · $11B valuation · 4 of 4 figures sourced  |  OpenAI — Foundation Models · Private · $852B valuation · 5 of 5 figures sourced

Relationship

Notion AI and ChatGPT for Word do comparable work on summarization; both also serve buyers who need to draft and edit written content; larger scale (private).

Assembled from the recorded fields for this pair, not hand-checked. The comparison below is read from each company’s own profile.

5 of 7 capabilitiesShared product typeLarger scale

5 of 7 capabilities — Shares agent orchestration, speech to text, summarization and 2 more.

Ludbee capability tags · from the product records

Shared product type — Both ship AI agent and application.

Ludbee product records

Larger scale — OpenAI: $852B valuation, against Notion's $11B valuation.

Ludbee scale figures · valuation, market cap or revenue estimate

Aligned comparison

FieldNotionOpenAI
Valuation$11B$852B OpenAI has 77× more
Employees1,3004,500 OpenAI has 3.5× more
Founded20132015 2 yrs later
StatusPrivatePrivate match
CategoryApplicationFoundation Models
Stack layerAI agent, ApplicationAI agent, Agent platform, Application, Model API
HeadquartersSan Francisco, USASan Francisco, USA match

Capability overlap

Shared · 5

Agent orchestrationSpeech to textSummarizationText generationWorkflow automation

Not verified for OpenAI · 2

Meeting notesKnowledge retrieval

Recorded for Notion. OpenAI’s product records say nothing either way — a missing record is not a missing capability.

Not verified for Notion · 12

Agentic codingCode generationCode reviewData analysisData securityDocument extractionEvaluation and observabilityImage generationPresentation generationText to speechThreat detection and responseSearch answers

Recorded for OpenAI. Notion’s product records say nothing either way — a missing record is not a missing capability.

Products, side by side

Algorithmic pairing — assembled from recorded fields, not hand-checked

Notion

Application

NotionApplication

Workspace combining notes, documents, databases and project tracking.

Notion AIApplication

Writes, summarises and answers questions across a workspace's own pages and connected applications.

Notion AI Meeting NotesApplication

Transcribes and summarizes meetings in real time, identifies speakers, syncs notes to Slack/email and turns transcripts into actionable documents.

Notion Custom AgentsApplication

Team-wide AI agents that run automatically on schedules or triggers, reading and acting across Notion pages, databases and connected apps.

Notion Enterprise SearchApplication

AI-powered search across Notion and connected apps (Slack, Google Drive, GitHub, Jira, Teams, SharePoint, OneDrive) with cited answers and generated research reports.

Notion MailApplication

AI-powered email client from Notion, at its own dedicated domain (mail.notion.com); a client-rendered page confirms the name but not pricing or entitlement.

AI agent

Notion AgentAI agent

Personal AI assistant that performs on-demand work inside Notion, distinct from scheduled Custom Agents.

OpenAI

Application

ChatGPTApplication

Assistant for chat, web search, file analysis and image generation, used in the browser and in desktop and mobile apps; developers can build custom in-chat apps for it via the Apps SDK, built on the Model Context Protocol.

ChatGPT AtlasApplication

OpenAI's agentic web browser. Deprecated on 9 August 2026, with its browser-based agentic capabilities moved into ChatGPT and Codex.

ChatGPT GovApplication

A version of ChatGPT that US government agencies deploy in their own Microsoft Azure commercial or Azure Government cloud, so the agency manages its own security, privacy and compliance.

ChatGPT for ExcelApplication

ChatGPT in the Excel ribbon: builds and edits spreadsheets, formulas and formatting from plain-language requests, answers questions about what is in the workbook, and asks permission before changing it. OpenAI's own page bundles this with a separate ChatGPT for Google Sheets add-in; this record covers the Excel add-in only.

ChatGPT for PowerPointApplication

ChatGPT in the PowerPoint ribbon: creates new slides, rewrites and restructures an existing deck, and turns notes, documents or spreadsheets into presentation-ready content while keeping the output editable in PowerPoint.

ChatGPT for WordApplication

ChatGPT in a Microsoft Word sidebar: drafts, revises and reorganizes the open document from notes or pasted source text, pulling in context from connected apps like Outlook, SharePoint, Google Workspace and Dropbox.

SoraApplication

OpenAI's text-to-video product. The web and app experiences were discontinued on 26 April 2026; the API will be discontinued on 24 September 2026.

AI agent

CodexAI agent

Coding agent that reads, edits and runs a codebase from the terminal, an IDE extension and the ChatGPT web app.

No counterpart

OpenAI sells these in a stack layer with no product recorded for Notion yet — nothing on the other side to compare them against.

Agent platform

OpenAI DaybreakAgent platform

OpenAI's cybersecurity offering, bringing together frontier cyber models, Codex Security and partner workflows to find, validate and fix vulnerabilities, with an access-gated Daybreak Red tier for authorised vulnerability research and red teaming.

OpenAI FrontierAgent platform

Enterprise platform for connecting AI agents to systems of record and running them under enterprise identity, access and observability controls.

Model API

OpenAI APIModel API

Hosted API for OpenAI's text, image, audio and embedding models, billed per token.

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