After a month of intensive testing, Every co-founder Dan Shipper concludes that OpenAI's GPT-5.6 Soul — released Thursday in a merged ChatGPT/Codex desktop app — represents a genuine paradigm shift for knowledge workers because it is fast, cheap, and reliable enough to let professionals move from performing tasks to managing automated systems. Shipper describes a world where his inbox, meal logging, meeting notes, and Facebook Marketplace purchases are handled by persistent AI loops. While Anthropic's Fable still dominates on raw coding benchmarks (91/100 vs Soul's 56/100), Soul's ergonomics make it the default daily driver, and the two models are, in Shipper's workflow, "a match made in heaven" when used together. Shipper's workflow involves going into Fable for a difficult coding project, then telling it to use Soul as a sub-agent. The article maps the strategic divergence between OpenAI and Anthropic, noting that Fable delivers "world-changing genius" at high cost and high latency, while Soul delivers speed, affordability, and professional clarity. Shipper spent a month answering which lane matters more for the work most of us do.