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New editorials every morning on the AI stories that matter for product builders. Weekly roundup every Friday with curated links and commentary.

21 Feb 2026

Digest

AI News Roundup — February 21, 2026

This week's top AI news: the agentic stack matures with MCP standardisation and new orchestration platforms, Hollywood escalates the copyright fight, and a delicious meta-irony in AI journalism.

Editorialvia VentureBeat

Observational Memory Might Kill RAG for Long-Running Agents

Mastra's open-source memory system replaces retrieval with background compression, scoring highest on LongMemEval at a fraction of the cost. If you're building agents that need to remember, pay attention.

OpenAI Launches Frontier, a Platform to Build, Deploy, and Manage AI Agents Across the Enterprise

InfoQ

'Observational memory' cuts AI agent costs 10x and outscores RAG on long-context benchmarks

VentureBeat

Manipulating AI memory for profit: The rise of AI Recommendation Poisoning

Microsoft Security Blog

Hollywood isn't happy about the new Seedance 2.0 video generator

TechCrunch

xAI Launches Grok 4.20 with a team of AI agents

NextBigFuture

Moonshot AI Releases Open-Weight Kimi K2.5 Model with Vision and Agent Swarm Capabilities

InfoQ

Ars Technica Retracts Story Featuring Fake Quotes Made Up By AI

Techdirt

Agent Bricks Supervisor Agent is Now GA: Orchestrate Enterprise Agents

Databricks

Voicebox: The open-source voice synthesis studio powered by Qwen3-TTS

GitHub Trending

Some 'Summarize with AI' buttons are secretly injecting ads into your chatbot's memory

The Decoder

Donating the Model Context Protocol and establishing the Agentic AI Foundation

Anthropic

Fundamental raises $255M Series A with a new take on big data analysis

TechCrunch