GPT 5 Nano pricing
$ Affordable$0.05/M input · $0.40/M output. List prices from provider data; in idapt, chat is metered per token with transparent, usage-based pricing at the prices shown in the app.
Full rate table
| Rate | Price | Unit |
|---|---|---|
| Input | 0.049999999999999996 | /M tokens |
| Output | 0.39999999999999997 | /M tokens |
| Cache read | 0.01 | /M tokens |
| Web search | 0.01 | /search |
What typical work costs
| Workload | Tokens | List price |
|---|---|---|
| Quick question | 1K tokens in, 500 out | $0.0003 |
| Long-document summary | 60K tokens in, 2K out | $0.0038 |
| Agent working session | 400K tokens in, 40K out across a day | $0.04 |
Price your own workload
- Per call
- $0.0003
- Per month
- $0.03
Compare up to four models at once in the cost calculator.
Frequently asked
What does GPT 5 Nano cost per 1M tokens?
GPT 5 Nano lists at $0.05 per 1M input tokens and $0.40 per 1M output tokens.
Does GPT 5 Nano discount cached input tokens?
Yes. Cached input tokens are billed at $0.01 per 1M, versus $0.05 for fresh input. Prompts that repeat a long prefix (a system prompt, attached files) benefit the most.
What does a typical chat message with GPT 5 Nano cost?
A message with about 1,000 input tokens and a 500-token reply costs roughly $0.0003 at list price. Long documents and long replies scale that linearly with token counts.
Is GPT 5 Nano cheaper than GPT 5?
GPT 5 Nano has the lower blended price at a 3:1 input:output mix. GPT 5 Nano: $0.05 in / $0.40 out per 1M. GPT 5: $1.25 in / $10.00 out per 1M.
How does idapt bill GPT 5 Nano?
GPT 5 Nano is in idapt's free lane: signed-in users run it against the free daily allowance, with transparent, usage-based pricing beyond it at the prices shown in the app.
Part of the GPT 5 Nano model page · cheapest models board · price changes