canonical_slug
"openai/gpt-5.4-image-2-20260421"
context_window
272000
max_completion_tokens
128000
modalities
{
"input_modalities": [
"image",
"text",
"file"
],
"output_modalities": [
"image",
"text"
]
}rate
{
"prompt": "0.000008",
"completion": "0.000015",
"web_search": "0.01",
"image_output": "0.00003",
"input_cache_read": "0.000002"
}supported_parameters
[ "frequency_penalty", "include_reasoning", "logit_bias", "logprobs", "max_tokens", "presence_penalty", "reasoning", "reasoning_effort", "response_format", "seed", "stop", "structured_outputs", "top_logprobs" ]