Updated March 26, 2026· Based on independent benchmark data
GPT-5.4 (xhigh) leads in intelligence with a score of 57.2 vs 51.7.
| Metric | Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) | GPT-5.4 (xhigh) |
|---|---|---|
| Intelligence Score | 51.7 | 57.2 |
| Coding Score | 50.9 | 57.3 |
| Math Score | N/A | N/A |
| Speed (tok/s) | 71 tok/s | 77 tok/s |
| Latency (TTFT) | 32.16s | 181.82s |
| Input Price / 1M tokens | $3.00 | $2.50 |
| Output Price / 1M tokens | $15 | $15 |
| Context Window |
GPT-5.4 (xhigh) outperforms Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) on the intelligence index with a score of 57.2 compared to 51.7. For coding tasks, GPT-5.4 (xhigh) has the edge with a coding score of 57.3 vs 50.9.
Both models deliver similar output speeds: Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) at 71 tok/s and GPT-5.4 (xhigh) at 77 tok/s. Time to first token is 32.16s for Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) vs 181.82s for GPT-5.4 (xhigh), which affects perceived responsiveness in interactive applications.
GPT-5.4 (xhigh) is more affordable at $2.50/1M input tokens ($15/1M output), while Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) costs $3.00/1M input ($15/1M output). For a typical workload of 100 requests per day at 2,000 tokens each, Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) would cost approximately $18.00/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 50.9), making it the better choice for programming tasks.
GPT-5.4 (xhigh) is cheaper at $2.50/1M input tokens vs $3.00/1M for Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort).
GPT-5.4 (xhigh) is faster, producing output at 77 tok/s compared to Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort)'s 71 tok/s.
No, Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) does not support image input. Neither model supports image input.
Data last synced: March 26, 2026
| N/A |
| N/A |
| Max Output Tokens | N/A | N/A |
| Input Modalities | Text | Text |
| Output Modalities | Text | Text |
| Free Tier | No | No |
It depends on your priorities. GPT-5.4 (xhigh) scores higher on intelligence (57.2), but Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) may be better for specific use cases like budget-conscious projects or speed-critical applications.