OpenAI

AI research lab building frontier language models, the ChatGPT platform, and the GPT API.

Founded

2015

Headquarters

San Francisco, CA, USA

CEO

Sam Altman

Models

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OpenAI Models

Model	Status	Context	Max Output	Input $/MTok	Output $/MTok	Released
GPT Image 1 GPT Image	current	—	—	—	—	2025-04-23
GPT-5.3 Instant GPT-5	current	—	—	$1.75	$14.00	2026-03-05
GPT-5.4 GPT-5	current	1.05M	128K	$2.50	$15.00	2026-03-05
GPT-5.4 (via Cursor) GPT-5	current	—	—	—	—	2026-03-05
GPT-5.4 (via GitHub Copilot) GPT-5	current	—	—	—	—	2026-03-05
GPT-5.4 Pro GPT-5	current	1.05M	128K	$30.00	$180.00	2026-03-06
o3 o3	current	200K	100K	$2.00	$8.00	2025-04-16
o3-Pro o3	current	200K	100K	$20.00	$80.00	2025-06-10
o4-mini o4	current	200K	100K	$1.10	$4.40	2025-04-16
GPT-4o GPT-4o	deprecated	128K	16.4K	$2.50	$10.00	2024-05-13
GPT-4o mini GPT-4o	deprecated	128K	16.4K	$0.15	$0.60	2024-07-18

All updates →

2026-03-06

release GPT-5.4 Pro

GPT-5.4 Pro released as premium reasoning tier at $30/$180 per MTok.

source ↗

2026-03-05

release GPT-5.4

GPT-5.4 released with 1.05M context window, 128K max output, computer use support, and improved reasoning.

source ↗

2026-03-05

update GPT-5.4 (via GitHub Copilot)

GitHub Copilot updated to support GPT-5.4 as default model option.

source ↗

2026-03-05

update GPT-5.4 (via Cursor)

Cursor added GPT-5.4 as model option.

source ↗

2026-03-05

release GPT-5.3 Instant

GPT-5.3 Instant released as the new default model in ChatGPT.

source ↗

Model data sourced from official OpenAI documentation. Last updated 2026-03-12.

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