Auto model (Standard) vs GPT-5.4 Nano
GPT-5.4 Nano is cheaper on output tokens, while Auto model (Standard) offers a larger context window. Choose Auto model (Standard) or GPT-5.4 Nano based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Auto model (Standard) | GPT-5.4 Nano |
|---|---|---|
| Provider | NanoGPT | OpenAI |
| Input / 1M tokens | $10.00 | $0.20 |
| Output / 1M tokens | $19.99 | $1.25 |
| Context window | 1M | 400K |
| Parameters | — | — |
| Open weights | No | No |
| Released | Apr 2025 | Mar 2026 |
| LiveBench score | — | 71.3 |
| LMArena (Chatbot Arena) Elo score | — | 1372 |
| LMArena Vision Elo score | — | 1196 |
| GPQA Diamond score | — | 78.5 |
| FrontierMath score | — | 25.9 |
| Epoch Capabilities Index score | — | 146 |
FAQ
Is Auto model (Standard) or GPT-5.4 Nano cheaper?
GPT-5.4 Nano is cheaper on output tokens ($1.25 vs $19.99 per 1M).
Which has the larger context window, Auto model (Standard) or GPT-5.4 Nano?
Auto model (Standard) has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.