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.
What changed
before— removed
Codex usage included in flat tier
after+ current
Codex usage drawn from token credits across Plus/Pro/Business/Enterprise
word-level diff
Codex usage drawn from tokenincluded creditsin acrossflat Plus/Pro/Business/Enterprisetier
Context
OpenAI silently changed Codex billing to a token-credit model on most paid plans on April 2, 2026, while simultaneously cutting Business per-seat pricing from $25 to $20. The net effect for heavy Codex users was unclear at announcement and pushed many to recalculate effective per-completion cost. The $100 Pro tier had launched only days earlier on April 9.