GPT-5.4 nano scores 20.5 on the Respan Index (#93), ahead of DeepSeek V3.2-Exp at 20.3 (#95). They split the 2 benchmarks both report evenly. GPT-5.4 nano has the larger context window (400K tokens).
Higher is better. Each score links to where it was published.
* Estimated: no published scores in that category. How the Respan Index works