OpenAI · Codex
ChatGPT Pro 100
Price
$100/mo
Rank
#3 of 18
Est. value score (provisional)
Is ChatGPT Pro 100 worth it?
ChatGPT Pro 100 (OpenAI, for Codex) costs $100/mo. AgentMPG's estimated value score is 80/100, rank #3 of 18 plans tracked (tied with ChatGPT Pro 200, ChatGPT Plus). Among the 4 Codex plans we track, it ranks #1. At a similar price, Claude Max (was Max 5x) ($100/mo) scores higher at 88/100. There are no crowd burn-rate reports for this plan yet, so the score is provisional. Scores are editorial estimates, not measurements, and the right plan depends on your workload and models.
Official limits
Work and Codex allowance doubled on Oct 29, 2026. No 5-hour Codex limit; weekly limits apply. GPT-6 Astra included in Codex allowance. Exact allowance not published.
Source: help.openai.com/en/articles/9793128-about-chatgpt-pro-tiers · verified 2026-11-02
Note: Exact allowance not published by OpenAI. Heads up: starting in December 2026, OpenAI says Plus, Pro and Business usage will be one token-based allowance shared across ChatGPT and Codex (Instant chat excluded); pool sizes and start day not published yet.
What builders report
No crowd submissions yet for this plan. Score is a provisional estimate from official limits only.
Used this plan? Submit your burn rate to improve the score.
Head-to-head comparisons
Other Codex plans
Similar-price alternatives
Value score = AgentMPG editorial estimate of agentic work per dollar, 0–100 (not a measurement, not vendor-endorsed). Limits change often; check the vendor page before buying. Compare all plans.