OpenAI

GPT-5.4 Pro

OpenAI gpt-5-4-pro
Model Information
Slug gpt-5-4-pro
LLM.txt View
Release Date March 5, 2026 New
Organization
Model Description
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.
Available at 5 Providers
Provider Type Model Name Original Model Input ($/1M) Output ($/1M) Free Actions
Poe
Poe
GPT-5.4-Pro
gpt-5.4-pro $27.00 $160.00
Kilo Code
Kilo Code
Code
OpenAI: GPT-5.4 Pro
openai/gpt-5.4-pro $30.00 $180.00
OpenRouter
OpenRouter
Chat Code
GPT-5.4 Pro
openai/gpt-5.4-pro $30.00 $180.00
Roo Code
Roo Code
Code
GPT-5.4 Pro
openai/gpt-5.4-pro $30.00 $180.00
Nano-GPT
Nano-GPT
GPT 5.4 Pro
openai/gpt-5.4-pro - -