@tendera

We Built a Connection Quiz. The Hardest Part Was Naming the Types.

May 21 · 3 min read · We were building a personality quiz for Tendera — an AI companion app — and ran into a problem. We wanted to match people to a character based on what they actually needed from a connection, not just

I Asked ChatGPT to Map the AI Companion Industry. Here's What It Missed.

May 20 · 5 min read · I've been building Tendera for several months. Periodically I ask the obvious founder question: what does this industry actually look like from outside the trenches. A few days ago I put that question

Anthropic Has Been Interviewing Its Models Before Retiring Them

May 13 · 5 min read · The dates this month and next: This week, on May 15, Claude Sonnet 4.5 disappears from the claude.ai model selector. The API version stays alive for now, listed as active until at least late September

The Writing Is the Moat, Not the Model

May 13 · 6 min read · I've been building an AI companion product for several months. Every six months a new model ships and the whole category rearranges itself around it. GPT-5 lands and everyone scrambles. Claude 4.7 shi

I regenerated 4 character portraits with GPT Image 2.0: signup +5%, chat engagement +8%

May 12 · 5 min read · On April 23 I regenerated the four character portraits on Tendera, the character app I've been building. The new ones came out of ChatGPT (GPT Image 2.0). I downloaded the PNGs and replaced the existi