OpenAI is restructuring its ChatGPT Pro tier with a new $100-per-month subscription plan designed to support heavier use of its Codex coding tool, the company said on April 10, 2026. The new tier offers five times more Codex usage than the existing Plus plan.

The $100 plan retains all existing Pro features, including access to the exclusive Pro model and unlimited access to both Instant and Thinking models. OpenAI positioned it as an upgrade path for users who run longer, more demanding Codex sessions on a daily basis.

ChatGPT Pro Tier Launch Promotion

To mark the launch, OpenAI is temporarily increasing Codex usage limits for $100 Pro subscribers through May 31, 2026. During this period, Pro subscribers will receive up to 10 times the Codex usage available to Plus subscribers, giving developers more capacity to work on larger projects.

Changes to the Plus Plan

The Codex promotion that was previously available to Plus subscribers ended on April 10, 2026. As part of the restructuring, OpenAI is rebalancing Codex usage within the Plus plan. The change shifts usage toward more sessions spread across the week, rather than concentrating heavy usage within a single day.

OpenAI said the $20-per-month Plus plan remains the primary option for users with steady, day-to-day coding needs. The company described the new $100 tier as a more accessible step up for those who need significantly more capacity.

What Is Codex?

Codex is OpenAI’s artificial intelligence model built for software development tasks. It can write, edit, and explain code across multiple programming languages. The tool has seen growing adoption among developers who use ChatGPT as part of their daily workflow.

The pricing change reflects a broader pattern in the AI software market, where providers are introducing tiered plans to separate casual users from power users with higher computational demands.

Subscription Pricing Summary

  • Plus plan: $20 per month, suitable for regular daily Codex use
  • Pro plan: $100 per month, offers 5x more Codex usage than Plus
  • Pro launch promotion: up to 10x Plus usage on Codex, valid through May 31, 2026

“The Plus plan will continue to be the best offer at $20 for steady, day-to-day usage of Codex, and the new $100 Pro tier offers a more accessible upgrade path for heavier daily use.”

OpenAI

OpenAI did not specify how long the $100 Pro tier pricing will remain at its current level, nor did it outline any planned changes to the Pro model’s feature set beyond the Codex usage adjustments.