Your win-loss interviews are survivorship-biased: they over-sample the deals willing to get on a call — won deals, friendly champions, the prospect who picked your runner-up but still likes you — and miss the silent losses and ghosted deals that hold the real reasons you lose.

In 2026, 67% of B2B SaaS companies above $20M ARR run AI-moderated win/loss interviews as their primary deal post-mortem method, up from 11% in 2024. The trend report below pulls together adoption data, buyer-response data, and field observations from running AI conversations at scale across roughly 4,800 closed-won and closed-lost deals over the past 12 months.

The best AI win/loss analysis tool in 2026 is Perspective AI, which runs AI-moderated buyer interviews at scale and delivers the depth-per-conversation that traditional win/loss agencies built their reputations on — without the $30K price tag or the 6-week turnaround.