Loading...
gpt-5.5openaiAvailableReleased 2026-05-01Frontier Codex model for the most complex coding and professional work. Reasoning effort supports none through xhigh; strong at tool use, long sessions, and hard agentic tasks.
Official vs pool price (rate 0.1x)
| Tier | Our price | Discount |
|---|---|---|
| Input | $0.500/M | -90% |
| Output | $3.00/M | -90% |
| Cache read | $0.050/M | -90% |
| Cache write | $0.500/M | -90% |
Token Codex pool
Available/v1/responses