OpenAI / build
Codex
Workspace-bound coding assistance increasingly organized around issues, tests, review, and automation hooks.
The durable read is not any single coding model; it is the emergence of a build harness where context, tools, and verification are part of the workflow.
Anthropic / cowork
Claude / Claude Code
Persistent instructions, skills, and agentic coding workflows point toward reusable professional work patterns.
Claude-style workflows are strongest when the human supplies policy, examples, and review criteria that survive beyond one chat.
Microsoft / automate
Copilot / Scout
The Microsoft agent surface is moving toward M365-grounded action, background coordination, and enterprise controls.
The enterprise differentiator is governed access to mail, calendar, files, identity, and policy, not generic answer quality.