GPT-4.1 nano — API Pricing & Benchmarks
GPT-4.1 nano is OpenAI's previous-generation model, released in 2025-04. The API costs $0.10 per 1M input tokens and $0.40 per 1M output tokens ($0.18 blended at a 3:1 ratio), with cached input at $0.03. It supports a 1.0M-token context window. On the independently measured Artificial Analysis Intelligence Index it scores 9.6, ranking #65 of 68 models tracked on this site.
Explore provider routes and additional benchmark sources for GPT-4.1 nano
| Provider | OpenAI |
| Input price / 1M tokens | $0.10 |
| Output price / 1M tokens | $0.40 |
| Cached input / 1M tokens | $0.03 |
| Blended price (3:1) | $0.18 |
| Context window | 1.0M |
| Max output tokens | 33K |
| Knowledge cutoff | 2024-06 |
| License | proprietary |
| Input modalities | T+I |
| Output speed (tok/s) | — |
| Released | 2025-04 |
| Artificial Analysis Intelligence Index | 9.6 |
| GPQA Diamond | 51.2% |
| Humanity's Last Exam | 3.8% |
Where GPT-4.1 nano fits
On a blended 3:1 basis GPT-4.1 nano costs $0.18 per 1M tokens, cheaper than 96% of the 80 priced models in this index. It is a previous-generation model: usually only worth choosing if you have an existing integration, negotiated pricing, or need its specific behavior, since newer siblings offer better price-performance. Cached input is priced at $0.03 (75% below standard input), which rewards prompt structures with long stable prefixes — see our caching guide.
Price history
| Period | Input $/1M | Output $/1M | Cached $/1M |
|---|---|---|---|
| 2026-08-25 → current | $0.10 | $0.40 | $0.03 |
No list-price changes recorded since tracking began. Full dataset: price-history.json (CC BY 4.0).
Alternatives at a similar price
- Qwen3.8-Flash (Alibaba Qwen) — $0.23/1M blended, AA Index 55.8
- GLM-5.3-Flash (Zhipu AI (Z.ai)) — $0.24/1M blended, AA Index 57.5
- GPT-4o mini (OpenAI) — $0.26/1M blended, AA Index 6.7
- Mistral Small 4 (Mistral AI) — $0.26/1M blended, AA Index 19.7
About OpenAI
OpenAI builds the GPT series. GPT-6 Astra (September 2026) sits at the top at $10/$50, and beneath it the GPT-5.6 generation ships in three sizes — Sol, Terra and Luna — that share the same 1.05M-token context window and tooling, so teams can move workloads between price points without changing integration code.