Head to head
Claude Sonnet 4 vs GPT-5.4
On a blended workload of one million input tokens and three million output tokens, GPT-5.4 is line-ball with Claude Sonnet 4.
| Claude Sonnet 4 | GPT-5.4 | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Input / MTok | $3 | $2.5 |
| Output / MTok | $15 | $15 |
| Cache read / MTok | $0.3 | $0.25 |
| Context window | 200,000 | — |
| Blended 1M in + 3M out | $48.00 | $47.50 |
| Status | retired | ga |