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GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger counterparts, it retains key instruction-following and safety features. It is the successor to GPT-4.1-nano and offers a lightweight option for cost-sensitive or real-time applications.
| Signal | Strength | Weight | Impact |
|---|---|---|---|
| Capabilitiesjust now | 100 | 20% | +20.0 |
| Benchmarksjust now | 58 | 30% | +17.5 |
| Recencyjust now | 92 | 15% | +13.7 |
| Context Windowjust now | 89 | 10% | +8.9 |
| Output Capacityjust now | 85 | 10% | +8.5 |
| Pricingjust now | 0 | 15% | +0.1 |
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Cost Estimator
You save $40.42/month vs category average
From verified sources.