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OpenAI: GPT-5.4

🇺🇸 OpenAI · GPT-5.4

Input Price $2.50 per million tokens NT$80.0
Output Price $15.00 per million tokens NT$480
Context Window 1.05M tokens Output limit: 128K
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Overview

OpenAI: GPT-5.4 is a large language model API from OpenAI, part of its GPT-5.4 model family. With $2.50 per million input tokens and $15.00 per million output tokens, it is a premium-tier model where output volume is the main cost to watch. Output tokens cost about 6× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. An exceptionally large 1.05M-token context window (≈1,575 pages of text) means entire repositories or document collections can be processed without chunking. Beyond plain text it also accepts Image, File input, so it can be applied to multimodal tasks rather than text alone. On Artificial Analysis's Intelligence Index it scores 51 (A 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 $2.50 NT$80.0
Output per 1M tokens $15.00 NT$480
Cached Input per 1M tokens $0.250 NT$8.0
Web Search per search $0.010 NT$0.32

Provider
OpenAI
Model Family
GPT-5.4
Version String
openai/gpt-5.4
Status
Active
Modality
Text, Image, File
Context Window
1,050,000 tokens
Output Limit
128,000 tokens

Index Metrics

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

Agentic Index 41 B Measured: 2026-07-01
Coding Index 71 S Measured: 2026-07-01
Intelligence Index 51 A Measured: 2026-07-01

Benchmark Scores

Data source: Artificial Analysis

AA-LCR 74.0% B Measured: 2026-07-01
GPQA Diamond 92.0% S Measured: 2026-07-01
HLE 41.6% S Measured: 2026-07-01
MMMU Pro 78.4% A Measured: 2026-07-01
Non-Hallucination 11.4% Measured: 2026-07-01
Omniscience Accuracy 50.0% Measured: 2026-07-01
SciCode 56.6% A Measured: 2026-07-01
Tau2 87.1% Measured: 2026-07-01
TerminalBench 57.6% Measured: 2026-07-01

Performance Metrics

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

First Token Latency 124.3s Measured: 2026-07-01
Output Speed 144 t/s Measured: 2026-07-01
Response Time 127.8s Measured: 2026-07-01

Use Case Analysis

Model strengths, weaknesses, and ideal use cases based on benchmarks and official documentation

Strength

  • Frontier Model for Complex Work Frontier model for complex professional work with strong reasoning and coding capabilities. Official

Best For

  • Cost-Optimized Frontier Work Complex professional work where cost is a consideration but frontier capabilities are needed. Official

Weakness

  • Superseded by GPT-5.5 GPT-5.5 is more intelligent and token efficient. GPT-5.4 is now the more affordable option. Official

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 $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter
Output $15.00 OpenRouter
Input $2.50 OpenRouter
Web Search $0.010 OpenRouter
Cached Input $0.250 OpenRouter

Key Insights

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

  • OpenAI: GPT-5.4 Input price: $2.5/M tokens
  • OpenAI: GPT-5.4 Output price: $15/M tokens
  • Context window: 1,050,000 tokens
  • Provider: OpenAI
  • Model family: GPT-5.4
  • Modalities: Text, Image, File
  • Data source: OpenRouter, updated daily