I am writing the launch post for the tool we just shipped. I have two openings and cannot decide which is stronger.

Option B is the stronger opening for a launch post because it leads with a concrete, quantified outcome—cutting draft-selection time from about half a day to under a minute—which is instantly persuasive, scannable, and more credible than a qualitative pain point. Its second sentence also sets up a compelling open loop: it promises both an explanation of how the tool works and an honest account of what it got wrong in the first month. That combination of specificity, roadmap, and transparency gives readers a clear reason to keep reading, makes the post feel substantive rather than generic marketing, and can disarm skepticism toward self-promotion by showing willingness to admit early mistakes. Option A has real strengths: it is concise, relatable, and has a slightly meta charm because the reader is literally comparing two drafts. However, its pain point is unquantified, its payoff line about building 'the thing' is vague and can imply overhyped simplicity, and it follows a very common pain-point-to-solution template without offering the same proof or credibility signal. The honesty in B carries a minor risk, but for a launch audience it is more likely to build trust than undermine it. A more story-driven brand voice could make Option A a legitimate alternative, but B's mix of hard numbers, curiosity, and transparency makes it the stronger default choice.