Head to head
o1 vs Claude Opus 5
On a blended workload of one million input tokens and three million output tokens, Claude Opus 5 is 2.4× cheaper than o1.
| o1 | Claude Opus 5 | |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Input / MTok | $15 | $5 |
| Output / MTok | $60 | $25 |
| Cache read / MTok | $7.5 | $0.5 |
| Context window | 200,000 | 1,000,000 |
| Blended 1M in + 3M out | $195.00 | $80.00 |
| Status | ga | ga |