GPT-5 Nano
by OpenAI · openai/gpt-5-nano
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...
- Input / 1M tokens
- $0.05
- Output / 1M tokens
- $0.40
- Context
- 400K
Specs
| Input price | $0.05 / 1M tokens |
|---|---|
| Output price | $0.40 / 1M tokens |
| Cached input | $0.005 / 1M tokens |
| Context window | 400K tokens |
| Max output | 128K tokens |
| Reads | text, image, file |
| Writes | text |
| Tool calling | Yes |
| Reasoning | Yes |
| Listed | Aug 7, 2025 |
List prices in USD, updated Oct 30, 2026. Providers may charge differently.
Providers
4 providers serve this model, as of Oct 30, 2026, 18:12 UTC.
| Provider | Context | Max output | Input / 1M | Output / 1M | Cache read / 1M | Uptime (30 min) | Latency (median) | Throughput (median) | Supports | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| OpenAI | 400K | 128K | $0.025 | $0.20 | $0.0025 | 100% | 2.28 s | 128 tok/s | Normal | |
| Azure | 400K | 360K | $0.05 | $0.40 | $0.01 | 100% | 1.10 s | 64 tok/s | Normal | |
| OpenAI | 400K | 128K | $0.05 | $0.40 | $0.005 | 100% | 1.35 s | 85 tok/s | Normal | |
| Azure | 400K | 360K | $0.055 | $0.44 | $0.011 | 100% | 2.32 s | 105 tok/s | Normal |
"Cheapest" is the lowest input plus output price; "Fastest" the highest median throughput. Columns empty for every provider are not shown.
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