OpenAI vs Z.ai (Zhipu AI)
Relationship
Codex and GLM Coding Plan do comparable work on agentic coding and code generation; both also serve buyers who need to code with an AI assistant; smaller scale (public).
Assembled from the recorded fields for this pair, not hand-checked. The comparison below is read from each company’s own profile.
10 of 17 capabilities — Shares agent orchestration, agentic coding, code generation and 7 more.
Ludbee capability tags · from the product recordsShared product type — Both ship AI agent, application and model API.
Ludbee product recordsSmaller scale — Z.ai (Zhipu AI): $58.6B market cap, against OpenAI's $852B valuation.
Ludbee scale figures · valuation, market cap or revenue estimateAligned comparison
Capability overlap
Shared · 10
Not verified for Z.ai (Zhipu AI) · 7
Recorded for OpenAI. Z.ai (Zhipu AI)’s product records say nothing either way — a missing record is not a missing capability.
Not verified for OpenAI · 3
Recorded for Z.ai (Zhipu AI). OpenAI’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
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.
Model API
Hosted API for OpenAI's text, image, audio and embedding models, billed per token.
Z.ai (Zhipu AI)
Application
AI research assistant built on Zhipu's GLM models that performs academic and scholar search, AI-assisted paper reading, literature-review generation with citations, and scholarly question answering.
Deep-research assistant that searches and scrapes source websites to produce structured research reports and can emit the result as a slide deck or web page, with browser automation and video summarisation.
Zhipu's Chinese-market consumer AI assistant and agent built on the GLM model family, covering dialogue, writing, coding, translation and multimodal input.
AI agent
Locally installed AI agent application with 50+ preconfigured skills that performs document generation, data analysis, browser automation and messaging-app collaboration, running on Windows, macOS, iOS and Android and defaulting to the GLM-5.3 model.
Model API
No counterpart
OpenAI sells these in a stack layer with no product recorded for Z.ai (Zhipu AI) yet — nothing on the other side to compare them against.
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.
Z.ai (Zhipu AI) sells these in a stack layer with no product recorded for OpenAI yet — nothing on the other side to compare them against.
Developer tool
Flat-rate monthly subscription providing GLM model access inside third-party coding agents and IDEs such as Claude Code, Codex, Cline, OpenCode, Cursor and Windsurf, billed separately from Z.ai's per-token API.