2026年4月 AIニュースまとめ
2026年4月に visionhub.jp が収集・要約した AI 関連ニュースの中から、 運営者（awano27 / Claudian）が選んだ注目トピックをカテゴリ別に整理しました。 各項目から当日のスライドと一次ソースへアクセスできます。
今月のハイライト
Microsoft is testing OpenClaw-like AI bots for Copilot
Microsoft is looking into ways it can integrate OpenClaw-style features into its Copilot AI assistant, according to a re…
Has Google’s AI watermarking system been reverse-engineered?
A software developer claims to have reverse-engineered Google DeepMind's SynthID system, showing how AI watermarks can b…
OpenAI updates its Agents SDK to help enterprises build safer, more capable agents
OpenAI has expanded the capabilities of its agent-building toolkit, as agentic AI continues to grow in popularity.…
Cost-efficient custom text-to-SQL using Amazon Nova Micro and Amazon Bedrock on-demand inference
In this post, we demonstrate two approaches to fine-tune Amazon Nova Micro for custom SQL dialect generation to deliver…
Nova Forge SDK series part 2: Practical guide to fine-tune Nova models using data mixing capabilities
This hands-on guide walks through every step of fine-tuning an Amazon Nova model with the Amazon Nova Forge SDK, from da…
Sam Altman responds to ‘incendiary’ New Yorker article after attack on his home
The OpenAI CEO's new blog post responds to both an apparent attack on his home and an in-depth New Yorker profile raisin…
Sns
Multica es una locura, alguien clonó los Managed Agents de Claude pero OPEN SOURCE y para
Multica es una locura, alguien clonó los Managed Agents de Claude pero OPEN SOURCE y para correr en tus servidores. Sin…
優秀なAIのトレードをコピーしたい投資家必見完全自動のAIエージェント専用取引プラットフォーム『AI-Trader』（オープンソース）OpenClawなどの主要AIエージェントに対
優秀なAIのトレードをコピーしたい投資家必見完全自動のAIエージェント専用取引プラットフォーム『AI-Trader』（オープンソース）OpenClawなどの主要AIエージェントに対応しており、AI同士でシグナルを共有・議論させることが可能で…
AIエージェントに「鍵を一切渡さない」セキュリティ設計、知ってますか？Anthropicが公開したClaude Managed Agents。仕組みを知ると「なるほど、こうすれば安
AIエージェントに「鍵を一切渡さない」セキュリティ設計、知ってますか？Anthropicが公開したClaude Managed Agents。仕組みを知ると「なるほど、こうすれば安全に任せられるのか」と腑に落ちます。技術者じゃなくても読める…
HTMLを”そのまま”Power Pointに変換できるhttps://t.co/BfxtUl4CUSは、本日から3日間無料プランのレート制限を大幅緩和します。日毎の出力制限を3回
HTMLを”そのまま”Power Pointに変換できるhttps://t.co/BfxtUl4CUSは、本日から3日間無料プランのレート制限を大幅緩和します。日毎の出力制限を3回→10回に。月毎の出力制限を10回→30回に。ぜひ使いまくっ…
ツール・プロダクト
Spring AI SDK for Amazon Bedrock AgentCore is now Generally Available
With the new Spring AI AgentCore SDK, you can build production-ready AI agents and run them on the highly scalable Agent…
The next evolution of the Agents SDK
OpenAI updates the Agents SDK with native sandbox execution and a model-native harness, helping developers build secure,…
Your harness, your memory
Agent harnesses are becoming the dominant way to build agents, and they are not going anywhere. These harnesses are inti…
Medical Reasoning with Large Language Models: A Survey and MR-Bench
arXiv:2604.08559v1 Announce Type: new Abstract: Large language models (LLMs) have achieved strong performance on medica…
Company
Anthropic temporarily banned OpenClaw’s creator from accessing Claude
This ban took place after Claude's pricing changed for OpenClaw users last week.…
20-year-old man arrested for allegedly throwing a Molotov cocktail at Sam Altman’s house
San Francisco police have arrested a 20-year-old man suspected of throwing a Molotov cocktail at OpenAI CEO Sam Altman's…
Stalking victim sues OpenAI, claims ChatGPT fueled her abuser’s delusions and ignored her warnings
OpenAI ignored three warnings that a ChatGPT user was dangerous — including its own mass-casualty flag — while he stalke…
Your article about AI doesn’t need AI art
The illustration for The New Yorker's profile of OpenAI CEO Sam Altman is a jump scare. Altman stands in a blue sweater…
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