GPT-5.4 nano — API Pricing & Benchmarks
GPT-5.4 nano is OpenAI's small reasoning model, released in 2026-03. The API costs $0.20 per 1M input tokens and $1.25 per 1M output tokens ($0.46 blended at a 3:1 ratio), with cached input at $0.02. It supports a 400K-token context window. On the independently measured Artificial Analysis Intelligence Index it scores 20.7, ranking #51 of 72 models tracked on this site, with a median output speed of 163 tokens/sec.
Explore provider routes and additional benchmark sources for GPT-5.4 nano
| Provider | OpenAI |
| Input price / 1M tokens | $0.20 |
| Output price / 1M tokens | $1.25 |
| Cached input / 1M tokens | $0.02 |
| Blended price (3:1) | $0.46 |
| Context window | 400K |
| Max output tokens | 128K |
| Knowledge cutoff | 2025-08 |
| License | proprietary |
| Input modalities | T+I |
| Output speed (tok/s) | 163 |
| Released | 2026-03 |
| Artificial Analysis Intelligence Index | 20.7 |
| LMArena Elo | 1373 |
| GPQA Diamond | 81.7% |
| Humanity's Last Exam | 28.3% |
Where GPT-5.4 nano fits
On a blended 3:1 basis GPT-5.4 nano costs $0.46 per 1M tokens, cheaper than 82% of the 84 priced models in this index. It is built for high-volume, latency-sensitive work — classification, extraction, routing and autocomplete — where per-token price matters more than peak intelligence. Measured output speed of 163 tokens/sec is well above the index median of 107, making it suitable for interactive, user-facing use. Cached input is priced at $0.02 (90% below standard input), which rewards prompt structures with long stable prefixes — see our caching guide.
Price history
| Period | Input $/1M | Output $/1M | Cached $/1M |
|---|---|---|---|
| 2026-07-18 → current | $0.20 | $1.25 | $0.02 |
No list-price changes recorded since tracking began. Full dataset: price-history.json (CC BY 4.0).
Alternatives at a similar price
- GPT-5.6 Luna (OpenAI) — $0.45/1M blended, AA Index 37.3
- Codestral 25.08 (Mistral AI) — $0.45/1M blended
- GLM-4.5-Air (Zhipu AI (Z.ai)) — $0.43/1M blended, AA Index 11.1
- DeepSeek V4.1 Flash (DeepSeek) — $0.52/1M blended, AA Index 39.5
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.