# GPT-5.4 Pro: AI model fact sheet

- **Provider:** openai
- **Released:** 2026-03-05
- **Context window:** 1,050,000 tokens
- **API pricing:** $30.00 / 1M input, $180.00 / 1M output
- **OpenRouter ID:** openai/gpt-5.4-pro
- **Capabilities:** conversation, reasoning, code-generation, analysis, agentic-tool-use

GPT-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.

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/gpt-5.4-pro