Updated March 26, 2026· Based on independent benchmark data
GPT-5.4 (xhigh) leads in intelligence with a score of 57.2 vs 38.4.
| Metric | o3 | GPT-5.4 (xhigh) |
|---|---|---|
| Intelligence Score | 38.4 | 57.2 |
| Coding Score | 38.4 | 57.3 |
| Math Score | 88.3 | N/A |
| Speed (tok/s) | 72 tok/s | 77 tok/s |
| Latency (TTFT) | 8.29s | 181.82s |
| Input Price / 1M tokens | $2.00 | $2.50 |
| Output Price / 1M tokens | $8.00 | $15 |
| Context Window | 200K | N/A |
| Max Output Tokens | N/A | N/A |
| Input Modalities | Image + Text + File | Text |
GPT-5.4 (xhigh) outperforms o3 on the intelligence index with a score of 57.2 compared to 38.4. For coding tasks, GPT-5.4 (xhigh) has the edge with a coding score of 57.3 vs 38.4.
Both models deliver similar output speeds: o3 at 72 tok/s and GPT-5.4 (xhigh) at 77 tok/s. Time to first token is 8.29s for o3 vs 181.82s for GPT-5.4 (xhigh), which affects perceived responsiveness in interactive applications.
o3 is more affordable at $2.00/1M input tokens ($8.00/1M output), while GPT-5.4 (xhigh) costs $2.50/1M input ($15/1M output). For a typical workload of 100 requests per day at 2,000 tokens each, o3 would cost approximately $12.00/month vs $15.00/month for GPT-5.4 (xhigh) in input costs alone.
Choose GPT-5.4 (xhigh) when you need higher intelligence (57.2), stronger coding performance (57.3).
GPT-5.4 (xhigh) scores higher on coding benchmarks (57.3 vs 38.4), making it the better choice for programming tasks.
o3 is cheaper at $2.00/1M input tokens vs $2.50/1M for GPT-5.4 (xhigh).
GPT-5.4 (xhigh) is faster, producing output at 77 tok/s compared to o3's 72 tok/s.
Yes, o3 supports image input. GPT-5.4 (xhigh) does not support image input.
Data last synced: March 26, 2026
| Output Modalities | Text | Text |
| Free Tier | No | No |
It depends on your priorities. GPT-5.4 (xhigh) scores higher on intelligence (57.2), but o3 may be better for specific use cases like budget-conscious projects or speed-critical applications.