GPT-5.4 Pro
GPT-5.4 Pro is an advanced model developed by OpenAI designed for complex, high-stakes tasks. It features a large context window exceeding one million tokens and supports both text and image inputs to assist with intricate reasoning and tool-calling operations.
GPT-5.4 Pro specs and pricing
- Provider: OpenAI
- Released: March 5, 2026
- Context window: 1.1M tokens
- Max output: 128K tokens
- Input: text, images, files
- Output: text
- Price: $30 input / $180 output per 1M tokens
- Reasoning: yes
- Tool calling: yes
What GPT-5.4 Pro is good at
- Analyzing large documents or datasets
- Complex reasoning and problem-solving tasks
- Processing multi-modal inputs including images and files
To-dos to try with GPT-5.4 Pro
- Upload a 500-page technical manual and summarize the troubleshooting procedures for specific hardware components.
- Provide a set of complex financial reports and ask the model to identify long-term trends and potential risks.
- Upload several images of handwritten architectural sketches and request a structured text summary of the design requirements.
FAQ
- What is the primary focus of GPT-5.4 Pro? This model is built on a unified architecture specifically enhanced for complex, high-stakes reasoning tasks.
- Can this model process files and images? Yes, GPT-5.4 Pro accepts text, images, and files as input.
- How much does GPT-5.4 Pro cost? GPT-5.4 Pro costs $30 per million input tokens and $180 per million output tokens through OpenRouter. In todo.is a typical agent step costs about 109.2 credits ($1 = 100 credits).
- What is the context window of GPT-5.4 Pro? GPT-5.4 Pro can read up to 1.1M tokens at once and write up to 128K tokens in one reply.
- Can I use GPT-5.4 Pro without coding? Yes. In todo.is you pick GPT-5.4 Pro as your agent's model and write to-dos in plain words, on the web, the Android app, WhatsApp or Telegram. No API key needed: credits are included, or you can bring your own key.
JavaScript is required to use the todo.is app.