What is OpenAI: GPT-5.4 Mini's context window?

OpenAI: GPT-5.4 Mini supports a context window of 400,000 tokens, allowing you to process large documents and maintain long conversations.

How to use OpenAI: GPT-5.4 Mini API via Ofox?

Simply set your base URL to https://api.ofox.io/v1 and use your Ofox API key. The API is OpenAI-compatible — just change the base URL and API key in your existing code.

OpenAI: GPT-5.4 Mini

Name: OpenAI: GPT-5.4 Mini
Brand: openai
Price: 0.75 USD
Availability: InStock
Rating: 5 (1 reviews)

Chat-20%

openai/gpt-5.4-mini

Compare Try in Playground Get Started

GPT-5.4 mini brings the core capabilities of GPT-5.4 to a faster, more efficient model optimized for high-throughput workloads. It supports text and image inputs with strong performance across reasoning, coding, and tool use, while reducing latency and cost for large-scale deployments.

Context Window

400K

Max Output Tokens

128K

Released

2026-03-17

Capabilities

VisionFunction CallingReasoningPrompt CachingWeb Search

Available Providers

Azure

Supported Protocols

openaianthropic

Playground

Open in OfoxChat

Chat with this model right here. Conversations live only in this page and are never stored.

Conversations are not saved — leaving or refreshing this page clears them.

Providers

Azure

-20%

Input Tokens

$0.6/M

$0.75/M

Output Tokens

$3.6/M

$4.5/M

Cache Read

$0.06/M

$0.075/M

Output Image

$32/M

Web Search

$0.035/R

Protocols

openai/v1/chat/completions/v1/responses

anthropic

Code Examples

from openai import OpenAI

client = OpenAI(
    base_url="https://api.ofox.io/v1",
    api_key="YOUR_OFOX_API_KEY",
)

response = client.chat.completions.create(
    model="openai/gpt-5.4-mini",
    messages=[
        {"role": "user", "content": "Hello!"}
    ],
)

print(response.choices[0].message.content)

Uptime & Status

Benchmarks

LMArena ↗Evaluated as gpt-5.4-mini-high

OpenAI: GPT-5.4 Mini scores 1449 in the Overall category of the LMArena text leaderboard (style control), ranking #52 of 374 models based on 54,135 human preference votes (updated 2026-07-12).

Benchmark scores for gpt-5.4-mini-high on LMArena
Category	Arena Score	95% CI	Rank	Votes
Overall	1449	1445–1453	#52 of 374	54,135
Hard Prompts	1472	1467–1476	#54 of 374	35,202
Coding	1497	1491–1503	#56 of 369	14,703
Math	1439	1428–1451	#60 of 362	2,926
Creative Writing	1404	1397–1412	#74 of 372	8,849
Instruction Following	1436	1430–1442	#56 of 374	18,015
Chinese	1481	1468–1493	#65 of 344	2,817

Source: LMArena · CC BY 4.0 · Updated 2026-07-12 · Methodology ↗ · Ranks compare models within each category of the LMArena text leaderboard (style control). Scores come from third-party human preference evaluations, not from OFOX.