2026年3月 AIニュースまとめ
2026年3月に visionhub.jp が収集・要約した AI 関連ニュースから、 運営者（awano27 / Claudian）が選んだ全 34 本のトピックをカテゴリ別に整理しました。 その日に最も重要だった話題を1日1本ピックアップしており、各項目から当日のスライドと一次ソースへ直接アクセスできます。
今月のハイライト
How we monitor internal coding agents for misalignment
How OpenAI uses chain-of-thought monitoring to study misalignment in internal coding agents—analyzing real-world deploym…
Sns
サム・アルトマンは、AI技術は急速に進化する一方で、社会はゆっくりと変化すると考えている。 https://t.co/n4a2D3NvlX
サム・アルトマンは、AI技術は急速に進化する一方で、社会はゆっくりと変化すると考えている。 https://t.co/n4a2D3NvlX…
codex mcp という使い方を見つけた。歓喜🎉 https://t.co/XSdjtgVErv
codex mcp という使い方を見つけた。歓喜🎉 https://t.co/XSdjtgVErv…
ツール・プロダクト
Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini in ChatGPT
On February 13, 2026, alongside the previously announced retirement of GPT‑5 (Instant, Thinking, and Pro), we will reti…
Introducing EVMbench
OpenAI and Paradigm introduce EVMbench, a benchmark evaluating AI agents’ ability to detect, patch, and exploit high-sev…
Pacific Northwest National Laboratory and OpenAI partner to accelerate federal permitting
OpenAI and Pacific Northwest National Laboratory introduce DraftNEPABench, a new benchmark evaluating how AI coding agen…
From model to agent: Equipping the Responses API with a computer environment
How OpenAI built an agent runtime using the Responses API, shell tool, and hosted containers to run secure, scalable age…
Unrolling the Codex agent loop
A technical deep dive into the Codex agent loop, explaining how Codex CLI orchestrates models, tools, prompts, and perfo…
Unlocking the Codex harness: how we built the App Server
Learn how to embed the Codex agent using the Codex App Server, a bidirectional JSON-RPC API powering streaming progress,…
Introducing GPT-5.4 mini and nano
GPT-5.4 mini and nano are smaller, faster versions of GPT-5.4 optimized for coding, tool use, multimodal reasoning, and…
Company
How Higgsfield turns simple ideas into cinematic social videos
Discover how Higgsfield gives creators cinematic, social-first video output from simple inputs using OpenAI GPT-4.1, GPT…
Introducing Edu for Countries
Edu for Countries is a new OpenAI initiative helping governments use AI to modernize education systems and build future-…
Scaling PostgreSQL to power 800 million ChatGPT users
An inside look at how OpenAI scaled PostgreSQL to millions of queries per second using replicas, caching, rate limiting,…
PVH reimagines the future of fashion with OpenAI
PVH Corp., parent company of Calvin Klein and Tommy Hilfiger, is adopting ChatGPT Enterprise to bring AI into fashion de…
Powering tax donations with AI powered personalized recommendations
TRUSTBANK partnered with Recursive to build Choice AI using OpenAI models, delivering personalized, conversational recom…
The next chapter for AI in the EU
OpenAI launches the EU Economic Blueprint 2.0 with new data, partnerships, and initiatives to accelerate AI adoption, sk…
Keeping your data safe when an AI agent clicks a link
Learn how OpenAI protects user data when AI agents open links, preventing URL-based data exfiltration and prompt injecti…
Inside OpenAI’s in-house data agent
How OpenAI built an in-house AI data agent that uses GPT-5, Codex, and memory to reason over massive datasets and delive…
Snowflake and OpenAI partner to bring frontier intelligence to enterprise data
OpenAI and Snowflake partner in a $200M agreement to bring frontier intelligence into enterprise data, enabling AI agent…
GPT-5 lowers the cost of cell-free protein synthesis
An autonomous lab combining OpenAI’s GPT-5 with Ginkgo Bioworks’ cloud automation cut cell-free protein synthesis costs…
Introducing Trusted Access for Cyber
OpenAI introduces Trusted Access for Cyber, a trust-based framework that expands access to frontier cyber capabilities w…
Introducing OpenAI Frontier
OpenAI Frontier is an enterprise platform for building, deploying, and managing AI agents with shared context, onboardin…
Making AI work for everyone, everywhere: our approach to localization
OpenAI shares its approach to AI localization, showing how globally shared frontier models can be adapted to local langu…
Bringing ChatGPT to GenAI.mil
OpenAI for Government announces the deployment of a custom ChatGPT on GenAI.mil, bringing secure, safety-forward AI to U…
Testing ads in ChatGPT
OpenAI begins testing ads in ChatGPT to support free access, with clear labeling, answer independence, strong privacy pr…
GPT-5.2 derives a new result in theoretical physics
A new preprint shows GPT-5.2 proposing a new formula for a gluon amplitude, later formally proved and verified by OpenAI…
Beyond rate limits: scaling access to Codex and Sora
How OpenAI built a real-time access system combining rate limits, usage tracking, and credits to power continuous access…
Scaling social science research
GABRIEL is a new open-source toolkit from OpenAI that uses GPT to turn qualitative text and images into quantitative dat…
Advancing independent research on AI alignment
OpenAI commits $7.5M to The Alignment Project to fund independent AI alignment research, strengthening global efforts to…
Introducing OpenAI for India
OpenAI for India expands AI access across the country—building local infrastructure, powering enterprises, and advancing…
Why we no longer evaluate SWE-bench Verified
SWE-bench Verified is increasingly contaminated and mismeasures frontier coding progress. Our analysis shows flawed test…
OpenAI announces Frontier Alliance Partners
OpenAI announces Frontier Alliance Partners to help enterprises move from AI pilots to production with secure, scalable…
Arvind KC appointed Chief People Officer
OpenAI appoints Arvind KC as Chief People Officer to help scale the company, strengthen its culture, and lead how work e…
OpenAI Codex and Figma launch seamless code-to-design experience
OpenAI and Figma launch a new Codex integration that connects code and design, enabling teams to move between implementa…
生成：2026-10-07 ／ © 2026 awano27 — AI Intelligence Hub