Head to head
GPT-5.3 Codex vs GPT-5
On a blended workload of one million input tokens and three million output tokens, GPT-5 is 1.4× cheaper than GPT-5.3 Codex.
| GPT-5.3 Codex | GPT-5 | |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input / MTok | $1.75 | $1.25 |
| Output / MTok | $14 | $10 |
| Cache read / MTok | $0.175 | $0.125 |
| Context window | — | — |
| Blended 1M in + 3M out | $43.75 | $31.25 |
| Status | ga | ga |