name = "GPT-5.1 Chat"
description = "Chat-tuned GPT-5.1 for polished assistants, writing, and product conversations"
family = "gpt-codex"
release_date = "2025-11-13"
last_updated = "2025-11-13"
attachment = true
reasoning = true
temperature = false
tool_call = true
structured_output = true
knowledge = "2024-09-30"
open_weights = false

[limit]
context = 128_000
output = 16_384

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