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OpenAI(@OpenAI)

Introducing GPT-5.5 A new class of intelligence for real work and powering agents, built to underst...

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Introducing GPT-5.5

A new class of intelligence for real work and powering agents, built to underst...
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A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done.

Now available in ChatGPT and Codex. https://t.co/rPLTk99ZH5" / X

OpenAI on X: "Introducing GPT-5.5 A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done. Now available in ChatGPT and Codex. https://t.co/rPLTk99ZH5" / X

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OpenAI

@OpenAI

Introducing GPT-5.5 A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done. Now available in ChatGPT and Codex.

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6:06 PM · Apr 23, 2026

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