xai/grok-4.20-beta-0309-reasoning
xai · first recorded 2026-03-18 · last change 2026-08-10 · all xai models · open in Explorer
$1.25
input / MTok (current)
$2.5
output / MTok (current)
$0.2
cache read / MTok (current)
Price history
| Date | Field | From | To | Source |
|---|---|---|---|---|
| 2026-03-18 | Input / MTok | first listing | $2 | 8e61b32b8e |
| 2026-03-18 | Output / MTok | first listing | $6 | 8e61b32b8e |
| 2026-03-18 | Cache read / MTok | first listing | $0.2 | 8e61b32b8e |
| 2026-08-10 | Input / MTok | $2 | $1.25 | 9ec99cf9ce |
| 2026-08-10 | Output / MTok | $6 | $2.5 | 9ec99cf9ce |
Spec changes
| Date | Field | From | To | Source |
|---|---|---|---|---|
| 2026-03-18 | Max input tokens | — | 2,000,000 | 8e61b32b8e |
| 2026-03-18 | Max output tokens | — | 2,000,000 | 8e61b32b8e |
| 2026-08-10 | Max input tokens | 2,000,000 | 1,000,000 | 9ec99cf9ce |
| 2026-08-10 | Max output tokens | 2,000,000 | 1,000,000 | 9ec99cf9ce |