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 7.8, ranking #68 of 72 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 | 7.8 |
| LMArena Elo | 1285 |
| 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 84 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
- GPT-6 Luna (OpenAI) — $0.20/1M blended, AA Index 37.3
- Qwen3.8-Flash (Alibaba Qwen) — $0.23/1M blended, AA Index 39.8
- GLM-5.3-Flash (Zhipu AI (Z.ai)) — $0.24/1M blended, AA Index 41.8
- GPT-4o mini (OpenAI) — $0.26/1M blended, AA Index 6.7
About OpenAI
OpenAI builds the GPT series. The GPT-6 generation (September 2026) ships in three sizes — Astra (flagship, $10/$50), Sol ($2/$10) and Luna ($0.10/$0.50) — that share a 1.05M-token context window and the same tooling, so teams can move workloads between price points without changing integration code. The GPT-5.6 models remain on sale as the previous generation.