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OpenAI: GPT-5.4 Nano

🇺🇸 OpenAI · GPT-5.4 Nano

Input Price $0.200 per million tokens NT$6.4
Output Price $1.25 per million tokens NT$40.0
Context Window 400K tokens Output limit: 128K
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Overview

OpenAI: GPT-5.4 Nano is a large language model API from OpenAI, part of its GPT-5.4 Nano model family. Priced at $0.200 per million input tokens and $1.25 per million output tokens, it occupies the mid-range, balancing capability against running cost. Output tokens cost about 6× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. A large 400K-token context window (≈600 pages of text) lets it take in whole books, large codebases, or lengthy transcripts in a single call. Beyond plain text it also accepts File, Image input, so it can be applied to multimodal tasks rather than text alone. On Artificial Analysis's Intelligence Index it scores 38 (B grade), a useful proxy for its general reasoning strength relative to the other models tracked here. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.

Dimension Unit Price (USD) Price (TWD) Effective From
Input per 1M tokens $0.200 NT$6.4
Output per 1M tokens $1.25 NT$40.0
Cached Input per 1M tokens $0.020 NT$0.64
Web Search per search $0.010 NT$0.32

Provider
OpenAI
Model Family
GPT-5.4 Nano
Version String
openai/gpt-5.4-nano
Status
Active
Modality
File, Image, Text
Context Window
400,000 tokens
Output Limit
128,000 tokens

Index Metrics

Cross-domain capability indexes evaluated by Artificial Analysis — Artificial Analysis

Agentic Index 28 C Measured: 2026-07-01
Coding Index 56 S Measured: 2026-07-01
Intelligence Index 38 B Measured: 2026-07-01

Benchmark Scores

Data source: Artificial Analysis

AA-LCR 66.0% B Measured: 2026-07-01
GPQA Diamond 81.7% A Measured: 2026-07-01
HLE 26.5% A Measured: 2026-07-01
IFBench 75.9% A Measured: 2026-07-01
MMMU Pro 65.4% B Measured: 2026-07-01
Non-Hallucination 26.4% Measured: 2026-07-01
Omniscience Accuracy 25.4% Measured: 2026-07-01
SciCode 46.9% A Measured: 2026-07-01
Tau2 76.0% Measured: 2026-07-01
TerminalBench 42.4% Measured: 2026-07-01

Performance Metrics

Real-world benchmarks, updated every 72 hours by Artificial Analysis — Artificial Analysis

First Token Latency 4.3s Measured: 2026-07-01
Output Speed 141 t/s Measured: 2026-07-01
Response Time 7.8s Measured: 2026-07-01

90-Day Price Trend

Input / Output price (USD per 1M tokens)

Past 90 days of records; every price change is shown here

Date Dimension Price (USD) Source
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter
Output $1.25 OpenRouter
Input $0.200 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.020 OpenRouter

Key Insights

Key data points from this page for quick reference and citation.

  • OpenAI: GPT-5.4 Nano Input price: $0.2/M tokens
  • OpenAI: GPT-5.4 Nano Output price: $1.25/M tokens
  • Context window: 400,000 tokens
  • Provider: OpenAI
  • Model family: GPT-5.4 Nano
  • Modalities: File, Image, Text
  • Data source: OpenRouter, updated daily