GPT-5 Nano Pricing
GPT-5 Nano is a budget-tier language model from OpenAI, priced at $0.05 per 1M input tokens and $0.40 per 1M output tokens.
Prices verified against official pricing pages. Sources: OpenAI
Legacy model. For new speed- and cost-sensitive work OpenAI recommends GPT-5.6 Luna. Newer option: GPT-5.6 Luna at $0.20 input / $1.20 output per 1M tokens.
What does GPT-5 Nano cost in practice?
These are real-world monthly estimates based on common workload sizes. They assume a 2:1 input-to-output ratio (typical of chat + retrieval-augmented apps).
| Workload | Input / mo | Output / mo | Monthly cost | Annualized |
|---|---|---|---|---|
| Light prototyping | 0.1M tokens | 0.1M tokens | $0.03 | $0.30 |
| Medium production | 5.0M tokens | 2.5M tokens | $1.25 | $15.00 |
| Heavy production | 50.0M tokens | 25.0M tokens | $12.50 | $150.00 |
Need to model your own usage? Use the LLM pricing calculator →
GPT-5 Nano features
- Tool Use
- Streaming
Alternatives to GPT-5 Nano
Cheaper, same-tier alternatives
If GPT-5 Nano is more than you need, these budget-tier models cost less per token:
Need the cheapest OpenAI option? GPT-4.1 Mini starts at $ 0.40 input / $ 1.60 output per 1M tokens →
FAQ
How much does GPT-5 Nano cost per 1M tokens?
GPT-5 Nano costs $0.05 per 1M input tokens and $0.40 per 1M output tokens. Cached input drops to $0.01 per 1M tokens — a 90% discount on repeated context.
What is GPT-5 Nano's context window?
GPT-5 Nano supports a 400,000-token context window with a maximum output of 128,000 tokens per response.
What features does GPT-5 Nano support?
Tool Use, Streaming.
How much does GPT-5 Nano cost for medium production usage?
For ~5M input + 2.5M output tokens per month, GPT-5 Nano costs approximately $1.25/mo (≈$ 15.00/yr).
What are cheaper alternatives to GPT-5 Nano?
Same-tier alternatives that cost less: Llama 4 Scout , Llama 3.3 70B .