🟢 ChatGPT Codex 📅 Released 29 Sept 2026 Difficulty: Intermediate Coding helpModels & training

OpenAIがDevDay 2026で20以上の新機能を発表

Original title: DevDay 2026 Recap

① What is it? (in three lines)

The article text below is written in Japanese.

OpenAIは年次開発者向けイベント「DevDay 2026」で、GPT-6 Astraや各種API、セキュリティ機能など20以上の新しい発表を行いました。 ChatGPTやCodex、開発者向けツールの拡張が含まれています。 日本のエンジニアにとって実装や開発効率に関わる多くの更新が予定されています。

The headline and summary are an AI's Japanese rendering of each company's official announcement. They can diverge from the original. For the exact wording, follow the link to the official page. Terms of Use

② Main changes (3)

③ What you can now do

エンジニアは更新されたCodexやAPIを使って、より高度なコード生成や自動化が可能になります。セキュリティ機能の強化により、より安全なアプリケーション開発環境が提供されます。

Read the official post ↗ openai.com

🔗 Going deeper (outside articles)

Collected automatically with Gemini Search
📄 Read an excerpt of the original (142 characters)
Explore more than 20 announcements from OpenAI DevDay 2026, including GPT-6 Astra, ChatGPT, Codex, APIs, security, and new tools for builders.
#GPT-6#API#Codex#セキュリティ#開発者向け

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Fetched at 30 Sept 2026, 10:45:16 · summarised at 30 Sept 2026, 10:45:27