Back to all models
openai
openaiOpenAI: GPT-5.4
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...
openai/gpt-5.4
Context Size
1,050K
Input Price
375,000 pts/M
Output Price
2,250,000 pts/M
Architecture
Text
Image
File
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningresponse_formatseedstructured_outputstool_choicetools
Details
TokenizerGPT
Max Completion128,000 tokens
Provider Context1,050K tokens
ModeratedYes
CreatedMar 5, 2026