Anthropic Expands Claude Cowork to Mobile as Debate Grows Over Frontier Versus Open-Source AI Economics

Anthropic this week extended Claude Cowork, its agentic tool for general knowledge work, to web and mobile platforms for Max subscribers, after launching as a desktop-only app in January. The update lets users start tasks from a desktop and monitor or retrieve results from their phone, reflecting Anthropic’s ambition to position Cowork as a background administrative agent rather than a coding tool. The expansion follows a similar shift by OpenAI with Codex and Anthropic’s earlier rollout of Claude Tag inside Slack. Company data from 1.2 million anonymized Cowork sessions found business process operations, such as reporting and reconciliation, and content creation were the leading use cases, well ahead of software development.

Separately, Decagon CEO Jesse Zhang argued that frontier and open-source models are not competitors but sequential phases of AI adoption, with expensive frontier models proving new use cases before cheaper alternatives take over at scale. Data from Vercel and OpenRouter showed DeepSeek and other open-source models leading in token volume, while Anthropic’s Opus 4.8 and other frontier models continued commanding significantly higher per-token prices, suggesting frontier labs remain dominant in early-stage, high-value deployments despite rising open-source usage.