OpenAI's cloud-based autonomous coding agent (launched May 2025) integrated into ChatGPT. Runs parallel tasks in isolated cloud sandboxes with access to GitHub repos — reads code, executes tests, opens PRs, and fixes bugs with minimal supervision. Powered by the o3 model and available to Pro/Plus/Team subscribers.
Reality check: Expensive and buggy, it only makes sense for well‑funded power users needing terminal‑based AI for real projects.
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Worth It
8 votes
Situational
16 votes
Not worth it
16 votes
Based on 40 professional audits
v0 by Vercel is a collaborative AI assistant for designing, iterating, and scaling full-stack web applications, with a key differentiator in its AI-powered development capabilities.
“# Code Review: packages/ai/src/auth/oauth/openai-codex.ts - OpenAI Codex OAuth (440 lines) ## File Analysis `openai-codex.ts` implements t”
“I'm not sure what's going on with Codex context override, it's confusing.”
“OpenAI Codex OAuth is broken on Windows, it's frustrating.”
“I'm glad I made the OpenAI Codex provider stateless, it's a game-changer.”
“Claude Code + Codex is a powerful combo, I love using them together.”
“OpenAI Codex is a disappointment, it's not working as expected.”