OpenAI: GPT-5.4 Pro
Chat-20%openai/gpt-5.4-proGPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs. Optimized for step-by-step reasoning, instruction following, and accuracy, GPT-5.4 Pro excels at agentic coding, long-context workflows, and multi-step problem solving.
Context Window
1M
Max Output Tokens
128K
Released
2026-03-05
Capabilities
VisionFunction CallingReasoningWeb Search
Available Providers
Azure
Supported Protocols
openai
Providers
Azure
-20%Input Tokens
$24/M
$30/M
Output Tokens
$144/M
$180/M
Output Image
$32/M
Web Search
$0.035/R
Protocols
openai
/v1/responsesCode Examples
from openai import OpenAIclient = OpenAI(base_url="https://api.ofox.io/v1",api_key="YOUR_OFOX_API_KEY",)response = client.chat.completions.create(model="openai/gpt-5.4-pro",messages=[{"role": "user", "content": "Hello!"}],)print(response.choices[0].message.content)
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Frequently Asked Questions
OpenAI: GPT-5.4 Pro on Ofox.ai costs $30/M per million input tokens and $180/M per million output tokens. Pay-as-you-go, no monthly fees.
OpenAI: GPT-5.4 Pro supports a context window of 1M tokens with max output of 128K tokens, allowing you to process large documents and maintain long conversations.
Simply set your base URL to https://api.ofox.io/v1 and use your Ofox API key. The API is OpenAI-compatible โ just change the base URL and API key in your existing code.
OpenAI: GPT-5.4 Pro supports the following capabilities: Vision, Function Calling, Reasoning, Web Search. Access all features through the Ofox.ai unified API.