Antler x Lightfield: Fireside chat with Keith Peiris, An Unfiltered Pivot Story
The journey from idea to product-market fit is rarely linear, especially in the age of AI.
Every founder talks about “finding PMF.” Fewer talk honestly about the inflection points along the way: when early signals are mixed, growth stalls, and you’re forced to decide whether to double down or fundamentally rethink the direction. The messy middle is filled with near-misses, GTM resets, evolving positioning, and hard calls about what to keep and what to let go. In today’s AI-native landscape, speed is higher, expectations are steeper, and the window between breakthrough and irrelevance is shrinking.
Join Keith Peiris (Founder & CEO of Lightfield) and Bob Rosin (Managing Partner at Antler and 3X founder) as they unpack the real journey of building and scaling companies. In this conversation, Bob will moderate while also sharing lessons from his own founder journey — bringing a perspective shaped by both sides of the table: operator and investor. Together, Keith and Bob will explore the realities of building in the AI era — from zero to early traction and beyond.
We’ll explore:
How to recognize true product-market fit vs. temporary growth signals
When to double down and when to pivot
What changes (and what doesn’t) about GTM in the AI era
How to iterate on positioning when the market is still forming
The early hires and systems that matter most in the first 12–24 months
Whether you’re pre-idea, post-MVP, or scaling your first wave of traction, this conversation will offer a candid look at what it really takes to build in today’s AI-first environment, and how to navigate the path from ambition to repeatable growth.
Hosts
Antler: the world’s leading inception-stage investor, backing founders at day zero and supporting them as they build era-defining companies. On a monthly basis, Antler brings together a curated group of operators, builders, and founders to work side-by-side for up to three months before pitching their investment committee for an initial $500K–$1M commitment.
Lightfield: An AI-native CRM that remembers everything, then acts on it. It automatically captures and organizes every customer conversation across email, meetings, and notes, creating your team’s collective customer memory. Backed by Greylock, Lightspeed, and Coatue, Lightfield helps founders learn from every interaction and move faster toward repeatable growth.