OpenAI moves Codex pricing to token-based credits across Plus, Pro, Business, Enterprise
On April 2, 2026 OpenAI shifted Codex usage from a flat-tier model to token-based credits across most paid tiers, plus dropped Business from $25 to $20/seat the same day.
before
Codex usage included in flat tier
after
Codex usage drawn from token credits across Plus/Pro/Business/Enterprise