Updated March 26, 2026· Based on independent benchmark data
GPT-5.4 (xhigh) is 2.0x cheaper at $2.50/1M tokens vs $5.00/1M.
| Metric | OpenAI: GPT-5.6 Sol Pro | GPT-5.4 (xhigh) |
|---|---|---|
| Intelligence Score | N/A | 57.2 |
| Coding Score | N/A | 57.3 |
| Math Score | N/A | N/A |
| Speed (tok/s) | N/A | 77 tok/s |
| Latency (TTFT) | N/A | 181.82s |
| Input Price / 1M tokens | $5.00 | $2.50 |
| Output Price / 1M tokens | $30 | $15 |
| Context Window | 1.1M | N/A |
| Max Output Tokens | 128K | N/A |
| Input Modalities | File + Image + Text | Text |
| Output Modalities | Text | Text |
| Free Tier | No | No |
GPT-5.4 (xhigh) is more affordable at $2.50/1M input tokens ($15/1M output), while OpenAI: GPT-5.6 Sol Pro costs $5.00/1M input ($30/1M output). For a typical workload of 100 requests per day at 2,000 tokens each, OpenAI: GPT-5.6 Sol Pro would cost approximately $30.00/month vs $15.00/month for GPT-5.4 (xhigh) in input costs alone.
Choose GPT-5.4 (xhigh) when you need lower cost.
GPT-5.4 (xhigh) is cheaper at $2.50/1M input tokens vs $5.00/1M for OpenAI: GPT-5.6 Sol Pro.
Yes, OpenAI: GPT-5.6 Sol Pro supports image input. GPT-5.4 (xhigh) does not support image input.
Data last synced: March 26, 2026