# GPT-5.4 Pro 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. ## Model Information - **Organization**: [OpenAI](/llm.txt) - **Slug**: gpt-5-4-pro - **Available at Providers**: 5 - **Release Date**: March 5, 2026 ## Providers | Provider | Name | $ Input (per 1M) | $ Output (per 1M) | Free | Link | |----------|------|-----------------|------------------|------|------| | [Kilo Code](/llm/kilocode.txt) | OpenAI: GPT-5.4 Pro | 30.00 | 180.00 | | [View](https://kilo.ai/models/openai/gpt-5.4-pro) | | [Nano-GPT](/llm/nanogpt.txt) | GPT 5.4 Pro | | | | | | [OpenRouter](/llm/openrouter.txt) | GPT-5.4 Pro | 30.00 | 180.00 | | [View](https://openrouter.ai/openai/gpt-5.4-pro-20260305) | | [Poe](/llm/poe.txt) | GPT-5.4-Pro | 27.00 | 160.00 | | [View](https://poe.com/gpt-5.4-pro/api) | | [Roo Code](/llm/roocode.txt) | GPT-5.4 Pro | 30.00 | 180.00 | | [View](https://roocode.com) | --- [← Back to all providers](/llm.txt)