Head to head
OpenAI: GPT-5.6 Sol vs Claude Opus 5
Live prices, context windows, capabilities, and measured quality — updated continuously.
Side by side
| Metric | OpenAI: GPT-5.6 Sol Openai | Claude Opus 5 Anthropic |
|---|---|---|
| Input $/M tokens | $2.50 | $5.00 |
| Output $/M tokens | $15.00 | $25.00 |
| Context window | 1.1M | 1.0M |
| Max output | 128K | 128K |
| WM Score | 92 | 93 |
| Benchmark quality | 97.6 | 97.2 |
| Hosts serving it | 3 | 5 |
| Throughput (tok/s) | 32 | 62 |
| Latency (ms) | 5245 | 2932 |
| Vision | ||
| Tools | ||
| Reasoning | ||
| JSON mode |
Which should you pick?
OpenAI: GPT-5.6 Sol costs less per million input tokens — about 2.0× cheaper than Claude Opus 5. OpenAI: GPT-5.6 Sol scores higher on measured quality. OpenAI: GPT-5.6 Sol takes a larger context window, which matters for long documents or big codebases. Prices here are live list prices; the same model can cost less on a different host, so check the model page for the cheapest offering.