Head to head
Kimi K3 vs GPT-5.3 Codex
On a blended workload of one million input tokens and three million output tokens, GPT-5.3 Codex is 1.1× cheaper than Kimi K3.
| Kimi K3 | GPT-5.3 Codex | |
|---|---|---|
| Provider | Together AI | OpenAI |
| Input / MTok | $3 | $1.75 |
| Output / MTok | $15 | $14 |
| Cache read / MTok | — | $0.175 |
| Context window | 1,000,000 | — |
| Blended 1M in + 3M out | $48.00 | $43.75 |
| Status | ga | ga |