Real-time monitoring of Claude's peak hours. Optimize your usage and get the most out of your subscription.
Your 5-hour session runs at normal pace. Great time for heavy tasks, long conversations, and intensive Claude Code sessions.
Codex is OpenAI's coding agent, bundled with ChatGPT plans. Its limits are completely independent from Claude, so you can use it without affecting your Claude quota.
Plus — $20/mo: Includes Codex with GPT-5.x model access. Great for individual devs and moderate use.
Pro — $200/mo: Much higher limits, ideal for intensive all-day usage.
Business — $30/user/mo: For teams, with a guarantee your data won't train the model.
There's no standalone Codex subscription — it comes bundled with ChatGPT.
Codex uses a credit-based system tied to the model and task complexity. Limits reset in 5-hour windows (similar to Claude). Local tasks (CLI/IDE) consume fewer credits than cloud tasks. You can switch to the Mini model to stretch your limits by 2.5x to 3.3x.
Codex currently has doubled rate limits across all paid plans, and is temporarily available on ChatGPT Free and Go plans too. Great moment to try it as a Claude complement.
GPT-5.4: Most powerful, for complex reasoning and coding tasks.
GPT-5.3-Codex: Good cost/capability balance, ideal for GitHub code reviews.
GPT-5.1-Codex-Mini: Cheapest per task, perfect for routine work. No cloud support.
You can also use the API with per-token billing if you prefer pay-as-you-go.
Codex works on the ChatGPT web app (Codex Cloud), as a VS Code IDE extension, and as a local CLI tool. It also integrates with GitHub for automated code reviews, Slack, and Linear. Visit codex.openai.com to get started.
Claude measures your 5-hour session in tokens, not real minutes. During peak hours, each message "costs" more tokens, so your session runs out faster.
Pro subscribers are the most impacted. Max 20x users barely notice any difference (~2% only). API customers are not affected at all.
Your total weekly quota doesn't change. It's only redistributed: less capacity during peak hours, more during off-peak. The total remains the same.