GPT-5.4 mini — API Pricing & Benchmarks
GPT-5.4 mini is OpenAI's small reasoning model, released in 2026-03. The API costs $0.75 per 1M input tokens and $4.50 per 1M output tokens ($1.69 blended at a 3:1 ratio), with cached input at $0.07. It supports a 400K-token context window. On the independently measured Artificial Analysis Intelligence Index it scores 40.9, ranking #40 of 68 models tracked on this site, with a median output speed of 175 tokens/sec.
Explore provider routes and additional benchmark sources for GPT-5.4 mini
| Provider | OpenAI |
| Input price / 1M tokens | $0.75 |
| Output price / 1M tokens | $4.50 |
| Cached input / 1M tokens | $0.07 |
| Blended price (3:1) | $1.69 |
| Context window | 400K |
| Max output tokens | 128K |
| Knowledge cutoff | 2025-08 |
| License | proprietary |
| Input modalities | T+I |
| Output speed (tok/s) | 175 |
| Released | 2026-03 |
| Artificial Analysis Intelligence Index | 40.9 |
| LMArena Elo | 1412 |
| GPQA Diamond | 87.5% |
| Humanity's Last Exam | 28.1% |
Where GPT-5.4 mini fits
On a blended 3:1 basis GPT-5.4 mini costs $1.69 per 1M tokens, cheaper than 51% of the 80 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 175 tokens/sec is well above the index median of 104, making it suitable for interactive, user-facing use. Cached input is priced at $0.07 (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 | $0.75 | $4.50 | $0.07 |
No list-price changes recorded since tracking began. Full dataset: price-history.json (CC BY 4.0).
Alternatives at a similar price
- Kimi K2.7 Code (Moonshot AI) — $1.71/1M blended, AA Index 43
- Kimi K2.6 (Moonshot AI) — $1.71/1M blended, AA Index 45.1
- Grok 4.3 (xAI) — $1.56/1M blended, AA Index 37.9
- Grok 4.20 (xAI) — $1.56/1M blended
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.