Codex Plus vs Claude Pro
First, the correction: there is no plan called Codex Plus. Codex comes bundled with ChatGPT Plus at $20 — which is exactly what Claude Pro costs.
Updated August 28, 2026 · Independent comparison — ChatGPT Plus, Claude Pro are separate products.
ChatGPT Plus
OpenAI's $20 seat, Codex included
ChatGPT Plus is OpenAI's $20/month seat and the entry point for real Codex work — web, CLI, IDE and iOS — plus GPT-5.6 Sol, Terra and Luna. Its limit structure moved twice this year: OpenAI removed the 5-hour window on 2026-07-12 during a Sol traffic spike, then restored it for Plus on 2026-08-25, so Plus is once again capped on a 5-hour window stacked on a weekly one. Past either window you wait, or buy extra Codex credits on the token-based rate card. There is no annual billing.
Claude Pro
Anthropic's $20 seat, Claude Code included
Claude Pro is Anthropic's $20/month seat ($200/year, about $17/month) and it includes Claude Code. Usage runs on a rolling 5-hour session window stacked on a weekly cap, and — critically — chat, desktop, mobile and Claude Code all draw from the same pool, so a long conversation eats your coding budget. Anthropic does not publish numeric limits. Claude Fable 5 is not in the included weekly pool on Pro; it bills through usage credits at API rates instead. The product context window on individual plans is 200K.
Bottom line
There is no product called 'Codex Plus'. OpenAI does not sell Codex as a standalone subscription; the Codex agent — web, CLI, IDE and iOS — is bundled into ChatGPT Plus at $20/month, and the '5x' and '20x' Codex allowances people mean by 'Codex Pro' are simply ChatGPT Pro at $100 and $200. So the real comparison is ChatGPT Plus against Claude Pro, both at $20. Plus gives you GPT-5.6 Sol, Terra and Luna with Codex on every surface, governed by a 5-hour window (restored 2026-08-25) stacked on a weekly cap, with extra credits available past it. Claude Pro gives you Claude Code with Opus 5 and Sonnet 5 on a shared 5-hour and weekly pool, an annual option at about $17/month, and prepaid usage credits as its overage path.
Pricing
| Feature | ChatGPT Plus | Claude Pro |
|---|---|---|
| Price/mo | $20/mo | $20/mo |
| Intro promo | None | $200/yr, about $17/mo |
| Billing shape | Quota — 5-hour window restored 2026-08-25, stacked on weekly | Quota — rolling 5-hour session + weekly cap |
Models & Context
| Feature | ChatGPT Plus | Claude Pro |
|---|---|---|
| Models included | GPT-5.6 Sol, Terra and Luna; GPT-5.3-Codex family | Sonnet 5, Opus 5, Haiku 4.5 (Fable 5 via usage credits at API rates) |
| Context window | Not published | 200K on individual plans |
Limits & Overage
| Feature | ChatGPT Plus | Claude Pro |
|---|---|---|
| Limits (5h / weekly / monthly) | 5-hour + weekly, numeric allowances not published | Not published numerically; +50% Claude Code weekly boost expires 2026-08-31 |
| What happens past the cap | Wait for the window, or buy extra Codex credits on the token rate card | Wait for reset, upgrade, or enable prepaid usage credits at API rates |
| Parallel-agent friendly | Limited — 5-hour and weekly pools are shared | Limited — chat and Claude Code share one pool; extra terminals drain it faster |
Access & Lock-in
| Feature | ChatGPT Plus | Claude Pro |
|---|---|---|
| Host agents & IDEs supported | ChatGPT, Codex web, Codex CLI, Codex IDE, iOS | claude.ai, desktop, mobile, Claude Code CLI and IDE |
| Gives you an API key | ✗ | ✗ |
| Can drive a third-party agent | No — drives first-party Codex only, not Cline or OpenCode | No — Pro/Max OAuth is licensed for claude.ai and Claude Code only |
| Payment / region friction | Cards; no annual option; OpenAI supported-countries list applies | Cards, tax extra; mobile in-app pricing may differ |
Verdict at a glance
| Feature | ChatGPT Plus | Claude Pro |
|---|---|---|
| Best for | The default $20 OpenAI coding seat | Daily first-party Claude Code at the lowest Anthropic price |
Clearing up the SKUs
| Feature | ChatGPT Plus | Claude Pro |
|---|---|---|
| Sold as a standalone plan | No — bundled into ChatGPT Plus | No — bundled into Claude Pro |
| What 'Pro' means for this agent | ChatGPT Pro at $100 (5x) or $200 (20x) | Claude Max 5x at $100 or 20x at $200 |
| Entry price for the agent | $20/mo | $20/mo |
| Annual option | ✗ | $200/year, about $17/month |
The Verdict
Choose ChatGPT Plus if...
- ✓You want Codex specifically, on web, CLI, IDE and iOS
- ✓You want GPT-5.6 Sol, Terra and Luna selectable in one seat
- ✓You want ChatGPT's wider feature set in the same subscription
- ✓Codex Cloud running background tasks on the same quota is useful to you
Choose Claude Pro if...
- ✓You want Claude Code and the Claude model family
- ✓You want annual billing — ChatGPT offers none at any consumer tier
- ✓You want an overage path with published bundle discounts
- ✓You prefer Anthropic's harness for long agentic edits
Frequently Asked Questions
What is the difference between ChatGPT Plus and Claude Pro?
ChatGPT Plus is OpenAI's $20/month seat and the entry point for real Codex work — web, CLI, IDE and iOS — plus GPT-5.6 Sol, Terra and Luna. Claude Pro is Anthropic's $20/month seat ($200/year, about $17/month) and it includes Claude Code.
How much do ChatGPT Plus and Claude Pro cost?
ChatGPT Plus: $20/mo. Claude Pro: $20/mo. See the pricing table above for full plan details.
Should I choose ChatGPT Plus or Claude Pro?
Choose ChatGPT Plus if you want Codex specifically, on web, CLI, IDE and iOS. Choose Claude Pro if you want Claude Code and the Claude model family.
1DevToolOne window, every agent you're paying for
Whichever seat wins here, you end up locked to one vendor's harness — and most of these subscriptions are contractually barred from driving anything else. 1DevTool runs Claude Code, Codex CLI, Cline, OpenCode and Gemini CLI side by side in persistent terminals, so you can put each subscription behind the agent it's actually licensed for and switch between them without switching windows. It adds an HTTP client, a 13-engine database client and an embedded browser too. One-time $29, no subscription.