Field notes — week of August 27, 2026

Anthropic launched Claude Fable 5.1 and Mythos 5.1 on September 1, featuring a 1M-token context window by default, always-on adaptive thinking, and prompt cache reads reduced to $0.25 per million tokens. Salesforce's Winter '27 release on August 31 introduced agents that run full workflows, including resolving service cases and underwriting risk, and reported a 13% conversion lift from its Agentic Commerce Search. Intercom added webhooks for translated replies and background activation for complex Series, while Decagon launched Campaign Composer and integrated live web search via Perplexity's API; KT began rebuilding Woori Bank's AI chatbot infrastructure with an Agent Connector.

Field notes — week of August 27, 2026 What changed in AI-support tooling this week. Every item was checked against its source before it entered this list. Anthropic - launched Claude Fable 5.1 and Mythos 5.1 https://platform.claude.com/docs/en/release-notes/overview Sept 1 : a 1M-token context window by default, always-on adaptive thinking, and prompt cache reads cut to $0.25 per million tokens. Salesforce - the Winter '27 release https://www.salesforce.com/news/stories/winter-2027-product-release-announcement/ Aug 31 pushes agents from answering questions toward running full workflows - resolving service cases, booking appointments, underwriting risk - plus an Agentic Commerce Search feature the company reports lifted conversion 13%. Intercom - a new pair of webhooks fires when translated replies are saved, delivering the text in each language alongside the original Sept 2 changelog entry https://www.intercom.com/changes/en/156079-keep-your-integrations-in-sync-with-translated-replies ; the next day, background activation let more complex multi-step Series deploy without errors Sept 3 https://www.intercom.com/changes/en/156078-set-more-complex-series-live-reliably . Decagon - Campaign Composer https://decagon.ai/blog/campaign-composer lets teams configure channels, hours, retry logic, and suppression rules for outbound campaigns without engineering help Sept 2 ; a few days earlier its agents gained live web search through Perplexity's Search API https://decagon.ai/blog/live-web-search-with-perplexity , letting them answer time-sensitive questions with cited sources instead of escalating Aug 28 . KT - the South Korean carrier won a project to rebuild Woori Bank's AI chatbot and consultation-bot infrastructure https://www.digitaltoday.co.kr/en/view/97987/kt-begins-rebuild-of-woori-bank-ai-chatbot-consultation-bot , linking chat, consultation-bot, and AI-banker channels through an "Agent Connector" that carries conversation context across them Aug 31 .