Codex plans.
FeaturedOpenAI's flagship with GPT-5.5 and Codex agent (released April 23, 2026). The Codex app is getting improved and the model has much more generous limits than Claude. Appreciated for backend tasks. Expanded browser and computer use. Codex CLI is open-source.
Included plans
More messages than free - ad-supported (US)
GPT-5.5 - 10 Deep Research runs - Sora
5x Plus usage - Fast mode - GPT-5.3-Codex-Spark preview
20x usage - 250 Deep Research - 1M token context - 400K context
Price & launch history
Codex agent released with GPT-5.5; Pro Ultra tier (20x usage, 1M context) introduced.
Much more generous limits than Claude. Codex app keeps improving - great for backend tasks.
About the Codex tool
Best for backend development, API integration, and developers who need generous usage limits with the latest GPT-5.5
Codex FAQ
How much does ChatGPT Codex cost per month?+
ChatGPT has four paid tiers: Go at $8/mo (more messages than Free, ad-supported, US only), Plus at $20/mo (GPT-5.5, 10 Deep Research runs, Sora), Pro at $100/mo (5x Plus usage, Fast mode, GPT-5.3-Codex-Spark preview) and Pro Ultra at $200/mo (20x usage, 250 Deep Research, 1M token context, 400K context).
Does ChatGPT Codex have more generous limits than Claude?+
Yes. The Codex agent released April 23, 2026 with GPT-5.5 has much more generous usage limits than Claude Pro, which makes it attractive for heavy backend work.
Is the Codex CLI open source?+
Yes - the Codex CLI is open-source, while the hosted ChatGPT tiers (Go, Plus, Pro, Pro Ultra) are paid subscriptions.
Compared with
New models & deals, once a month (incl. Codex)
New proprietary and open-source models worth trying, price drops, and the best deals on AI coding plans. No spam.
Sources: official sites · r/ClaudeAI · r/LocalLLaMA · r/ZaiGLM · r/ChatGPT. Plans and features may vary - check official sites for the latest.