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OpenAI: GPT-5 Nano API Pricing
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...
How much does OpenAI: GPT-5 Nano cost for a real workload?
At 10M input + 2M output tokens per month, OpenAI: GPT-5 Nano costs about $1.3 ($0.5 input + $0.8 output). Try your own volumes in the cost calculator.
What is the official OpenAI: GPT-5 Nano price?
| Official (openai) | Catalog (OpenRouter) | |
|---|---|---|
| Input /1M | $0.05 | $0.05 |
| Output /1M | $0.4 | $0.4 |
| Cached input /1M | $0.005 | $0.005 |
✓ Matches the official list price. Source: openai official pricing page, checked 2026-10-21.
What are cheaper alternatives to OpenAI: GPT-5 Nano?
- Google: Gemma 3 27B — $0.08 in / $0.35 out per 1M
- Xiaomi: MiMo-V2.6-Flash — $0.14 in / $0.28 out per 1M
- Meta: Llama 3.3 70B Instruct — $0.1 in / $0.32 out per 1M
- Tencent: Hy3 — $0.0825 in / $0.33 out per 1M
- NVIDIA: Nemotron 3.5 Content Safety — $0.2 in / $0.2 out per 1M
- StepFun: Step 3.5 Flash — $0.1 in / $0.3 out per 1M
Compare OpenAI: GPT-5 Nano with other models
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Frequently asked questions
How much does OpenAI: GPT-5 Nano cost?
OpenAI: GPT-5 Nano costs $0.05 per 1M input tokens and $0.4 per 1M output tokens (list price, snapshot October 22, 2026). At 10M input + 2M output tokens per month that is about $1.3.
What is the context window of OpenAI: GPT-5 Nano?
OpenAI: GPT-5 Nano has a context window of 400,000 tokens and can return up to 128,000 output tokens per response.
What are cheaper alternatives to OpenAI: GPT-5 Nano?
Cheaper models include Google: Gemma 3 27B ($0.08 in / $0.35 out), Xiaomi: MiMo-V2.6-Flash ($0.14 in / $0.28 out), Meta: Llama 3.3 70B Instruct ($0.1 in / $0.32 out). See the full list on this page.
Is OpenAI: GPT-5 Nano free to use?
No. OpenAI: GPT-5 Nano is a paid model at $0.05 input / $0.4 output per 1M tokens. 21 free models are listed on the free models page.
What is the official price of OpenAI: GPT-5 Nano?
On openai's official pricing page (checked 2026-10-21), OpenAI: GPT-5 Nano is listed at $0.05 per 1M input tokens and $0.4 per 1M output tokens. The catalog price tracked on this page matches it exactly.
Provider: openai · Model ID: openai/gpt-5-nano · Modality: text+image+file->text · Price snapshot October 22, 2026, refreshed daily. How we collect prices