OpenAI announced a Pro ChatGPT tier on Wednesday that increases limits for Codex, OpenAI’s artificial intelligence-powered coding assistant, as the company looks to compete with Anthropic’s popular Claude Code.

In an announcement posted to X, the company said the $100 per month Pro tier has five times more Codex usage than its $20 per month Plus level, and is best for “longer, high-effort Codex sessions.”

“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,” the company wrote in a post on X.

The new level brings the number of ChatGPT subscription tiers to five for personal use: Free, Go, Plus and now two Pro levels. OpenAI already had a $200/month Pro tier.

Anthropic, which launched Claude Code to the public in May 2025, has a similar subscription tier model with four fee levels, starting with Free. Its highest tiers, Max 5x for $100/month and Max 20x tier for $200/month, have higher limits for Claude Code usage than its Pro subscription.