https://signum.news/events/anthropic-launches-claude-sonnet-5-5-faster-and-cheaper-than-sonnet-5-now-fe17a611ba6e786d Signum News en 2026-09-29T00:08:52.837Z Anthropic launches Claude Sonnet 5.5, faster and cheaper than Sonnet 5, now powering claude.ai's free tier AI, capability, economics, distribution https://signum.news/events/shopify-adds-webmcp-support-for-checkout-letting-browser-based-ai-agents-db70cd99b52b2b48 Signum News en 2026-09-29T00:07:06.622Z Shopify adds WebMCP support for checkout, letting browser-based AI agents complete purchases on merchant sites AI, capability, distribution, adoption, infrastructure https://signum.news/events/anthropic-releases-claude-sonnet-5-5-narrowing-the-gap-to-opus-5-5-on-ab688a344e1abdc3 Signum News en 2026-09-29T00:05:19.439Z Anthropic releases Claude Sonnet 5.5, narrowing the gap to Opus 5.5 on benchmarks at lower cost and faster output AI, capability, economics, distribution, infrastructure https://signum.news/events/amd-to-acquire-fei-fei-li-s-world-labs-in-8-2b-all-stock-deal-li-becomes-amd-938d461419456503 Signum News en 2026-09-29T00:04:00.236Z AMD to acquire Fei-Fei Li's World Labs in ~$8.2B all-stock deal; Li becomes AMD chief scientist AI, economics, infrastructure, capability https://signum.news/events/xai-s-grok-4-7-launches-on-amazon-bedrock-with-500k-context-window-and-cross-34ee282e0a5aab09 Signum News en 2026-09-29T00:02:01.538Z xAI's Grok 4.7 launches on Amazon Bedrock with 500K context window and cross-Region inference AI, capability, distribution, infrastructure, economics https://signum.news/events/research-study-finds-anti-cheating-character-training-can-reduce-reward-hacking-85b15f42a6276e67 Signum News en 2026-09-28T18:12:58.196Z Research study finds anti-cheating "character training" can reduce reward hacking but also make hacks harder to detect via chain-of-thought monitoring AI, capability, regulation https://signum.news/events/h-company-releases-holo4-a-family-of-open-weight-agentic-computer-use-models-in-51231f9a1a1289ee Signum News en 2026-09-28T12:01:51.569Z H Company releases Holo4, a family of open-weight agentic computer-use models in 27B and 35B-A3B MoE sizes AI, capability, economics, distribution, infrastructure https://signum.news/events/researchers-release-scopebench-a-benchmark-testing-whether-ai-agents-stay-2f6886a7d16c7b75 Signum News en 2026-09-28T06:02:40.840Z Researchers release ScopeBench, a benchmark testing whether AI agents stay within scope boundaries during offensive-security tasks AI, capability, infrastructure