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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
Where to run OpenAI: GPT-5 Nano
AI/ML API: one API key for 400+ models, including most models tracked here · Novita AI: pay-as-you-go APIs for open models (DeepSeek, Qwen, Llama and more) plus GPU cloud. Prices there follow each platform's own catalog and can differ from the list prices tracked here.
Run it on AI/ML API →Run it on Novita AI →
Disclosure: links to these platforms may be affiliate links — if you sign up or buy through them, LLMPrices may earn a commission at no extra cost to you.
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