GPT 4.1 Nano API pricing
OpenAI · chat model · 1.0M context · ranked #243 of 1809 by input price
What GPT 4.1 Nano costs in practice
GPT 4.1 Nano is priced at $0.1 per million input tokens and $0.4 per million output tokens , with cached input billed at $0.025 per million — roughly 75% cheaper than fresh input, which matters if your app resends a large system prompt. Against the median priced chat model ($0.5/1M in), this sits at 5.00× cheaper.
Monthly cost examples
Assuming 1,200 prompt + 400 completion tokens per request unless noted, billed 30 days a month and without cache hits.
| Workload | Cost / month | Cost / day |
|---|---|---|
| 1,000 requests/day | $8.4 | $0.28 |
| 10,000 requests/day | $84 | $2.8 |
| 100,000 requests/day | $840 | $28 |
| 1M summaries/month | $919.99 | $30.67 |
Model a different profile in the cost calculator.
Capabilities
Provider description
For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series. It delivers exceptional performance at a small size with its 1 million...
Cheaper alternatives
Ranked by blended cost (3× input + 1× output) — cheaper, but check context and capabilities before switching.
| # | Model | Provider | Input $/1M | Output $/1M | Cached $/1M | Context |
|---|---|---|---|---|---|---|
| 1 | Gemini Exp 1114 | Google Gemini | free | free | — | 1.0M |
| 2 | Gemini Exp 1206 | Google Gemini | free | free | — | 2.1M |
| 3 | Gemma 3 27b It | Google Gemini | free | free | — | 131K |
| 4 | Gemma 4 26b A4b It | Google Gemini | free | free | — | 262K |
| 5 | Gemma 4 31b It | Google Gemini | free | free | — | 262K |
| 6 | Learnlm 1.5 Pro Experimental | Google Gemini | free | free | — | 33K |
Data provenance
This page is assembled from the sources below. Where two sources disagree, both are shown.
- Our input price: $0.1
- Second source: —
- Our output price: $0.4
- Second source: —
More from OpenAI
Frequently asked
› How much does GPT 4.1 Nano cost per 1,000 tokens?
About $0.0001 for input and $0.0004 for output tokens, based on the per-million rates on this page.
› Is GPT 4.1 Nano cheaper than other models?
By input price it ranks #243 of 1809 priced chat models in this index, putting it in the cheaper half of the market.
› How often is GPT 4.1 Nano's price checked?
The dataset was last refreshed 2026-09-13 13:40 UTC. Providers can change pricing at any time — verify with OpenAI before committing to a budget.