name = "GPT-5.5"
description = "Frontier GPT model for professional reasoning, coding, and multimodal work"
family = "gpt"
release_date = "2026-04-23"
last_updated = "2026-04-23"
attachment = true
reasoning = true
temperature = false
tool_call = true
knowledge = "2025-12-01"
open_weights = false

[[reasoning_options]]
type = "effort"
values = ["low", "medium", "high", "xhigh", "max"]

[cost]
input = 5.00
output = 30.00
cache_read = 0.50

[limit]
context = 1_050_000
input = 922_000
output = 128_000

[modalities]
input = ["text", "image", "pdf"]
output = ["text"]