GPT-5.4 (xHigh): benchmark results
GPT-5.4 evaluated at the xhigh reasoning-effort setting. Provider: OpenAI. Released 2026-03-06. Access: API.
Unified ELO 1714 ± 1, rank #71 of 1761 rated models, from 165 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| CLBench | 27.9 | Solving Rate (%) | 100 |
| MathArena - ArXiv Math Jan 2026 | 76.09 | Accuracy (%) | 100 |
| PlanningBench | 63.17 | All-pass (%) (self-reported) | 100 |
| Sandboxed Coding Agents are Competitive Omni-m | 75 | OmniGAIA Avg. (self-reported) | 100 |
| VideoMME w sub. | 89.5 | Score (self-reported) | 100 |
| LiveBench Theory of Mind | 88.46 | Score | 99.1 |
| NonoBench | 63.3 | Overall Accuracy (%) | 98.9 |
| UGI - Natural Intelligence | 73.53 | NatInt Score | 98.8 |
| LiveBench | 80.91 | LiveBench average (self-reported) | 97.9 |
| APEX-Agents | 52.7 | Mean Score (ReAct) (self-reported) | 97.7 |
| UGI - Writing | 68.65 | Writing Score | 97.7 |
| AA Terminal-Bench Hard | 57.58 | Accuracy (%) | 97.3 |
Interactive version: theaggregate.ai/model?slug=gpt-5-4-xhigh · How It Works · Data refreshed daily, snapshot 2026-09-05.