Updated March 26, 2026· Based on independent benchmark data
GPT-5.2 (xhigh) and Claude Opus 4.5 (Reasoning) are virtually tied on intelligence (51.3 vs 49.7). GPT-5.2 (xhigh) is 2.9x cheaper at $1.75/1M tokens vs $5.00/1M.
| Metric | GPT-5.2 (xhigh) | Claude Opus 4.5 (Reasoning) |
|---|---|---|
| Intelligence Score | 51.3 | 49.7 |
| Coding Score | 48.7 | 47.8 |
| Math Score | 99.0 | 91.3 |
| Speed (tok/s) | 70 tok/s | 57 tok/s |
| Latency (TTFT) | 75.24s | 10.41s |
| Input Price / 1M tokens | $1.75 | $5.00 |
| Output Price / 1M tokens | $14 | $25 |
| Context Window | N/A |
GPT-5.2 (xhigh) and Claude Opus 4.5 (Reasoning) perform similarly on overall intelligence, scoring 51.3 and 49.7 respectively. Their coding capabilities are closely matched (48.7 vs 47.8). In mathematical reasoning, GPT-5.2 (xhigh) leads with 99.0 compared to Claude Opus 4.5 (Reasoning)'s 91.3.
GPT-5.2 (xhigh) generates output significantly faster at 70 tok/s compared to Claude Opus 4.5 (Reasoning)'s 57 tok/s, making it 1.2x faster for streaming responses. Time to first token is 10.41s for Claude Opus 4.5 (Reasoning) vs 75.24s for GPT-5.2 (xhigh), which affects perceived responsiveness in interactive applications.
GPT-5.2 (xhigh) is more affordable at $1.75/1M input tokens ($14/1M output), while Claude Opus 4.5 (Reasoning) costs $5.00/1M input ($25/1M output). That makes Claude Opus 4.5 (Reasoning) 2.9x more expensive per token, which can add up significantly at scale. For a typical workload of 100 requests per day at 2,000 tokens each, GPT-5.2 (xhigh) would cost approximately $10.50/month vs $30.00/month for Claude Opus 4.5 (Reasoning) in input costs alone.
Choose GPT-5.2 (xhigh) when you need lower cost.
GPT-5.2 (xhigh) scores higher on coding benchmarks (48.7 vs 47.8), making it the better choice for programming tasks.
GPT-5.2 (xhigh) is cheaper at $1.75/1M input tokens vs $5.00/1M for Claude Opus 4.5 (Reasoning).
GPT-5.2 (xhigh) is faster, producing output at 70 tok/s compared to Claude Opus 4.5 (Reasoning)'s 57 tok/s.
No, GPT-5.2 (xhigh) does not support image input. Neither model supports image input.
Data last synced: March 26, 2026
| N/A |
| Max Output Tokens | N/A | N/A |
| Input Modalities | Text | Text |
| Output Modalities | Text | Text |
| Free Tier | No | No |
Both models perform similarly on intelligence benchmarks. Choose based on specific needs: pricing, speed, context window, or provider ecosystem.