v0 by Vercel is an AI app builder that turns natural-language prompts into full-stack React applications using Next.js, Tailwind CSS, and shadcn/ui, with a Design Mode for visual edits, GitHub sync, and one-click deployment to Vercel hosting. Aimed at developers and product teams prototyping web apps.

Greptile is an AI code reviewer that builds a graph index of your codebase and runs a swarm of agents on every pull request to catch bugs and style violations. Used by 9,000+ teams including Brex, Nvidia, PostHog, Klaviyo, Retool, and Zapier.

Claude Code is Anthropic's agentic coding tool that reads codebases, edits files, runs tests, and ships pull requests from the terminal, VS Code, JetBrains, Slack, the web, or a desktop app. Built for developers working with Claude Sonnet and Opus models inside their existing stack.

QA Wolf is a hybrid testing platform and managed service: AI agents map an app's workflows and generate Playwright and Appium tests for web, iOS, and Android, while a dedicated pod of human QA engineers writes, maintains, and triages them. Aimed at engineering teams that want full E2E coverage without staffing their own QA function.

Devin is Cognition's autonomous AI software engineer that runs in parallel cloud sandboxes to plan, code, test, and ship pull requests from GitHub, Slack, Linear, Jira, and scanners. Built for engineering teams running migrations, refactors, on-call triage, and vulnerability remediation.

Cleric is an AI SRE that investigates production alerts, performs root cause analysis, and builds a knowledge graph from every resolution so future incidents finish faster. Built for SREs, engineers, and engineering leaders managing Kubernetes, microservices, and cloud infrastructure.

Momentic is an AI-powered end-to-end testing platform that lets engineers write web and mobile UI tests in plain English, with an autonomous agent that interprets steps at runtime and locators that self-heal as the DOM changes. It targets engineering teams replacing Playwright, Cypress, or Selenium suites with low-maintenance coverage that runs in CI and as production canaries.

Cursor is an AI-first IDE forked from VS Code, with Tab autocomplete, agentic Composer chat, semantic codebase indexing, a CLI, Slack integration, and cloud agents. Built for developers and engineering teams running frontier models from OpenAI, Anthropic, Google, and xAI inside their editor.