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OpenAI: GPT-5.4 Pro
openai/gpt-5.4-pro
VisionTool useJSONReasoningStreaming
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...
Pricing
Input
$30.00 / 1M
Output
$180.00 / 1M
Specs
Context
1,050,000 tokens
Input
text, image, file
Output
text
Released: 2026-03
Supported parameters
include_reasoningmax_completion_tokensmax_tokensreasoningresponse_formatseedstructured_outputstool_choicetools