OpenAI's $100 Pro Plan Is a Direct Play for Developers Anthropic Pushed Away
On April 9, 2026, OpenAI slipped a new pricing tier into its ChatGPT lineup: $100 per month for what it is calling ChatGPT Pro 5x. The pitch is five times the Codex usage of the $20 Plus plan, access to the same core model suite as the existing $200 Pro tier, and a launch promotion that temporarily delivers ten times Plus-level usage. The move fills the gap between $20 and $200 that had left heavy but non-enterprise developers with no logical upgrade path. It also, deliberately, prices identically to Anthropic's Claude Max 5x tier.
OpenAI made no particular effort to hide the competitive framing.
The Anthropic connection runs deeper than price. Eleven days before the new tier launched, on April 4, Anthropic barred third-party agent frameworks from routing Claude Pro and Max subscriptions through external harnesses, The Next Web reported. The change hit OpenClaw, a popular agent framework whose creator, Peter Steinberger, had been hired by OpenAI in February 2026 to lead its personal agent strategy. Within hours of Anthropic's announcement, Steinberger was on X calling out the restrictions and pointing developers toward Codex instead. The $100 plan is, in structural terms, the product response to that displacement.
"Compared with Claude Code, Codex delivers more coding capacity per dollar across paid tiers, with the difference showing up most clearly during active coding use," an OpenAI spokesperson told TechCrunch. That is a direct quote aimed at developers who had been weighing Claude Code's $100 Max tier against what they could get elsewhere.
The numbers behind the move are substantial. Codex crossed three million weekly users on April 8, a day before the announcement. Sam Altman posted on X that OpenAI would reset usage limits across all plans to mark the milestone and would repeat the reset for every additional million users until the platform reaches ten million weekly users, according to CNBC's coverage. The growth trajectory: five times larger in three months, with 70% month-over-month user growth. That kind of curve creates a pricing problem. Heavy users were burning through Plus limits mid-billing cycle and had only one option: jump to $200. The $100 tier is designed to be the landing spot before that leap.
The limits themselves are tiered by model. On GPT-5.3-Codex, the model's primary coding variant, Plus allows 30 to 150 local messages and 10 to 60 cloud tasks every five hours, according to OpenAI's developer documentation. The $100 Pro 5x tier raises that to 300 to 1,500 local messages and 100 to 600 cloud tasks per five-hour window. Those figures include a temporary 2x promotional boost that ends May 31, 2026; after that date the standard five-times multiplier applies. The $200 Pro 20x tier doubles the $100 tier's allocation across the board and adds exclusive access to GPT-5.3-Codex-Spark, a research-preview model currently unavailable via API.
Alongside the new tier, OpenAI announced it is "rebalancing" Plus plan Codex usage to support more sessions spread across the week rather than longer sessions in a single day. In plain terms: existing Plus subscribers are getting less burst capacity. The new $100 tier is explicitly positioned for "longer, high-effort Codex sessions," which is the usage pattern Anthropic's Claude Max was designed to serve.
The competitive timing is tight. Anthropic disclosed in early April that its annualized run-rate revenue has topped $30 billion, surpassing OpenAI's last reported ARR of approximately $24 to $25 billion, VentureBeat reported. Claude Code, Anthropic's terminal-based coding agent, is estimated to have generated over $2.5 billion in annualized revenue by February 2026, making it the fastest-growing component of Anthropic's commercial portfolio. The $100 plan is OpenAI's answer to that growth engine.
The broader context: OpenAI closed a $122 billion raise at an $852 billion valuation in March 2026, led by SoftBank, NVIDIA, and Amazon, with an IPO expected as early as Q4 2026. The company is generating $2 billion per month in revenue and has more than 50 million paid subscribers across its plans, per The Next Web's reporting. The $100 tier is not primarily about those existing subscribers. It is about developer market share at the price point where Anthropic has built real momentum.
Whether the plan moves enough developers to matter will show up in quarterly metrics from both companies. The Anthropic blockade created a real opening. OpenAI is betting that developers who were blocked from routing their $100 Claude Max subscription through frameworks like OpenClaw will now have a straightforward path to five times the Codex usage at the same price, without the restrictions. The $100 ChatGPT Pro 5x tier is the product that answer follows.
