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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.
A quick read of the model identity, commercial setup, and access footprint.
Published rates, tier transitions, and modality-specific surcharges in the current catalog entry.
| Pricing | Billing mode |
|---|---|
| Prompt | ¥0.0250/1M tokens |
| Output | ¥0.2000/1M tokens |
| 5m cache write | ¥0.0025/1M tokens |
Total tokens usage across all users
Top 10 AI coding agents using this model during the last 15 days.
| # | AI Coding Agents Usage | Total Tokens | Requests | Success rate | Last active |
|---|---|---|---|---|---|
| #1 |  Python Language SDK / HTTP client | 166M | 14.2K | 100.0% | 2026-08-02 |
| #2 | Python Language SDK / HTTP client | 166M | 14.2K | 100.0% | 2026-08-02 |
| #3 |  Go Language SDK / HTTP client | 54M | 17.2K | 100.0% | 2026-08-02 |
| #4 | Go Language SDK / HTTP client | 54M | 17.2K | 100.0% | 2026-08-02 |
| #5 |  Node.js Language SDK / HTTP client | 88.1K | 20 | 100.0% | 2026-07-31 |
| #6 | Node.js Language SDK / HTTP client | 88.1K | 20 | 100.0% | 2026-07-31 |
| #7 |  JavaScript Language SDK / HTTP client | 58.3K | 6 | 100.0% | 2026-07-30 |
| #8 | JavaScript Language SDK / HTTP client | 58.3K | 6 | 100.0% | 2026-07-30 |
| #9 | RU Ruby Language SDK / HTTP client | 15.5K | 6 | 100.0% | 2026-08-01 |
| #10 | RU Ruby Language SDK / HTTP client | 15.5K | 6 | 100.0% | 2026-08-01 |