gpt-5.1-codex-max
openai · first recorded 2025-12-05 · last change 2026-01-14 · all openai models · open in Explorer
$1.25
input / MTok (current)
$10
output / MTok (current)
$0.125
cache read / MTok (current)
Price history
| Date | Field | From | To | Source |
|---|---|---|---|---|
| 2025-12-05 | Input / MTok | first listing | $1.25 | 4eb9f8036f |
| 2025-12-05 | Output / MTok | first listing | $10 | 4eb9f8036f |
| 2025-12-05 | Cache read / MTok | first listing | $0.125 | 4eb9f8036f |
Spec changes
| Date | Field | From | To | Source |
|---|---|---|---|---|
| 2025-12-05 | Max input tokens | — | 400,000 | 4eb9f8036f |
| 2025-12-05 | Max output tokens | — | 128,000 | 4eb9f8036f |
| 2026-01-14 | Max input tokens | 400,000 | 272,000 | e0da7ca918 |