Anthropic vs OpenAI
Relationship
Rivals on three sourced fronts — consumer assistants, enterprise model APIs and coding agents; in mid-2025 enterprise LLM usage, Anthropic's 32% led OpenAI's 25%.
12 of 16 capabilities — Shares agent orchestration, agentic coding, code generation and 9 more.
Ludbee capability tags · from the product recordsShared product type — Both ship AI agent, agent platform, application and 1 more.
Ludbee product recordsSame scale band — Both late-stage private.
Ludbee scale bands · from valuation and funding figuresSourced competitor — “Until January, ChatGPT commanded over 50% market share, but by May's end, it had fallen to 46.4% thanks to the rise of Gemini (27.7%) and Claude (10.3%). Other assistants, including Grok, Perplexity, DeepSeek, and Meta AI, have less than 5…”
techcrunch.com · checked 2026-08-25Use an everyday AI assistant — Rivals on this job — Get answers, writing, search and everyday help from a general-purpose assistant app.
Ludbee needs vocabulary · the scope on the sourced edgeBuild on a hosted model API — Rivals on this job — Call hosted language models from an application, billed per token, without running the models yourself.
Ludbee needs vocabulary · the scope on the sourced edgeCode with an AI assistant — Rivals on this job — Write, edit and maintain a codebase with an AI coding assistant or agent.
Ludbee needs vocabulary · the scope on the sourced edgeAligned comparison
Capability overlap
Shared · 12
Not verified for OpenAI · 4
Recorded for Anthropic. OpenAI’s product records say nothing either way — a missing record is not a missing capability.
Not verified for Anthropic · 5
Recorded for OpenAI. Anthropic’s product records say nothing either way — a missing record is not a missing capability.
Products, side by side
Hand-checked pairing
Anthropic
Application
Assistant for chat, document analysis and coding, used in the browser and in desktop and mobile apps.
Lets users collaborate with Claude to create on-brand visual work (decks, prototypes, wireframes, marketing collateral) with design-system import and Claude Code integration via /design-sync.
Desktop application for scientific research that runs analyses, searches scientific databases and traces work from data wrangling through to publication.
Application that scans codebases for high-severity vulnerabilities, validates findings by adversarial verification and recommends patches for review, with a companion Claude Code plugin.
Claude working inside Excel, PowerPoint, Word and Outlook with context carried across the documents — preserving templates and house styles and showing every edit as tracked changes, highlighted cells or draft emails.
Claude tagged as @Claude inside Slack threads and channels: it reads thread context and replies in real time, analyses conversations, pulls data, drafts content, monitors channels, triages alerts and runs standing instructions without leaving Slack.
AI agent
Coding agent that works on a codebase from the terminal, an IDE extension and a desktop app.
Agentic task app in which Claude works asynchronously across a user's files and tools toward a stated goal, checked in on from desktop, web or phone.
Browser extension that lets Claude act inside Chrome on the user's behalf — reading pages, clicking, typing and filling forms to work through multi-step web tasks without approving each step, with the user keeping control of what it may do.
Agent platform
Hosted API offering a pre-built configurable agent harness with managed sandboxes and persistent sessions for long-running asynchronous agent tasks, billed separately from token usage.
Model API
OpenAI
Application
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.
OpenAI's agentic web browser. Deprecated on 9 August 2026, with its browser-based agentic capabilities moved into ChatGPT and Codex.
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 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 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 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.
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
Coding agent that reads, edits and runs a codebase from the terminal, an IDE extension and the ChatGPT web app.
Agent 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.
Enterprise platform for connecting AI agents to systems of record and running them under enterprise identity, access and observability controls.
Model API
Hosted API for OpenAI's text, image, audio and embedding models, billed per token.
No counterpart
Anthropic sells these in a stack layer with no product recorded for OpenAI yet — nothing on the other side to compare them against.
Developer tool
Python and TypeScript library that runs the same agent loop, tools and context management that power Claude Code, so developers can embed the loop in their own process rather than calling the API directly.