gpt-5-nano API pricing
Blended at 3:1 input to output: $0.138 per million tokens.
OpenAI charges $0.050 per million input tokens and $0.400 per million output tokens. 3 of the models nearest it in price are cheaper on a blended basis.
Against the models nearest in price
Blended at a 3:1 input to output ratio.
| Source | ||||||
|---|---|---|---|---|---|---|
| gpt-5-nano This model | OpenAI | $0.050 | $0.400 | 272,000 | $0.138 | ↗ |
| gemini-2.0-flash-lite | Google AI | $0.075 | $0.300 | 1,048,576 | $0.131 | ↗ |
| gemini-2.0-flash-lite-001 | Google AI | $0.075 | $0.300 | 1,048,576 | $0.131 | ↗ |
| llama-4-scout | OpenRouter | $0.100 | $0.300 | 1,310,720 | $0.150 | ↗ |
| llama-3.3-70b-instruct | OpenRouter | $0.100 | $0.320 | 131,072 | $0.155 | ↗ |
| llama-3.2-3b-instruct | OpenRouter | $0.050 | $0.330 | 131,072 | $0.120 | ↗ |
| llama-4-scout-17b-16e-instruct | Groq | $0.110 | $0.340 | 131,072 | $0.168 | ↗ |
| gemini-2.0-flash | Google AI | $0.100 | $0.400 | 1,048,576 | $0.175 | ↗ |
| gemini-2.0-flash-001 | OpenRouter | $0.100 | $0.400 | 1,048,576 | $0.175 | ↗ |
Last checked . Methodology
Questions
How much does gpt-5-nano cost per million tokens?
$0.050 per million input tokens and $0.400 per million output tokens, with cached input at $0.005. At a 3:1 input to output mix that blends to $0.138. Checked 12 Sept 2026.
What would gpt-5-nano cost for a real workload?
A thousand requests a day at 2,000 input and 600 output tokens each comes to $10.20 a month.
What is the context window for gpt-5-nano?
272,000 tokens of input, with up to 128,000 tokens of output.
gemini-2.0-flash-lite · gemini-2.0-flash-lite-001 · llama-4-scout · llama-3.3-70b-instruct · llama-3.2-3b-instruct · All OpenAI models · Cost calculator