Head to head
Claude Sonnet 4.5 vs GPT-5.2
On a blended workload of one million input tokens and three million output tokens, GPT-5.2 is 1.1× cheaper than Claude Sonnet 4.5.
| Claude Sonnet 4.5 | GPT-5.2 | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Input / MTok | $3 | $1.75 |
| Output / MTok | $15 | $14 |
| Cache read / MTok | $0.3 | $0.175 |
| Context window | 200,000 | — |
| Blended 1M in + 3M out | $48.00 | $43.75 |
| Status | ga | ga |