OpenAI introduces pay-as-you-go Codex seats

Buying developer tools for a whole team is usually a budget headache: paying a flat monthly fee for every single seat before anyone even knows if the engineers will actually use it.

OpenAI is tackling that friction head-on. The company just introduced pay-as-you-go, Codex-only seats for ChatGPT Business and Enterprise workspaces, letting companies grant full access to Codex without locking into fixed seat charges.

Zero seat fees and token-based billing

Instead of paying a standard monthly license for each developer, these Codex-only seats come with no fixed platform fee. There are no rate limits, and companies are billed purely on the tokens they burn.

That makes tracking expenses across specific workflows, teams, and budgets much simpler. To sweeten the deal, OpenAI is handing out a $100 credit for every new Codex-only team member added to eligible Business workspaces, capped at $500 per team.

For teams that still want broad ChatGPT capabilities alongside coding limits, OpenAI also slashed the annual price of standard ChatGPT Business seats from $25 down to $20 per seat. The tool works through the dedicated Codex app for macOS and Windows, alongside newly launched plugins and automation features.

Adoption has been climbing fast. OpenAI reports over 9 million paying business users across ChatGPT, with more than 2 million builders active on Codex weekly. Inside Business and Enterprise tiers, Codex user numbers have surged 6x since January, with teams at Notion, Ramp, Braintrust, and Wasmer using it in daily engineering.

Notably, OpenAI later updated the rollout on June 24, quietly closing new pay-as-you-go Codex seats for Business workspaces while grandfathering existing accounts.

Why it matters

For engineering managers, pay-as-you-go pricing removes the biggest barrier to adopting AI tooling: upfront commitment. Rather than asking finance for thousands of dollars to license an entire engineering department, a lead developer can run a pilot with three people on a single feature and only pay for the tokens consumed.

We think this was a clever play against entrenched competitors like GitHub Copilot. Offering unlimited throughput with pure consumption pricing lets OpenAI slip under corporate procurement radar. The $500 promotional credits effectively made initial pilot projects free.

However, the sudden reversal in June—cutting off new pay-as-you-go seats for Business plans—shows the catch. Pure consumption models are notoriously volatile for cloud providers. Heavy token usage without fixed margins can strain infrastructure, while sporadic usage fails to deliver predictable enterprise ARR. While pay-as-you-go is great for getting builders hooked, sustaining enterprise margins still pushes AI vendors back toward steady subscription commitments.