AI infrastructure

Chatter

Website
Founded 2023Origin source ↗Checked 2026-09-15

Overview

Chatter is Postman for LLMs. Our platform helps companies and developers test their LLM models. Iterate on prompts, run them across model families and evaluate them against test cases – all in one place. With collaboration features, engineers can design LLM chains while QA can write test cases.

Company description As recorded 2026-11-08
LinkedIn
AI infrastructureAPI platformDevelopersDevelopersSubscription

Founders & team

Previously Cram

Company history As recorded 2026-11-08

Anish Agrawal

Founder

I'm the Co-founder/CEO of Chatter (S23). Interested in AI/ML and robotics. Studied CS + Robotics @ UPenn

LinkedIn X
Founder profile As recorded 2026-09-15
2team members reported
Source-reported As recorded 2026-09-15

Founded 2023 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthverified profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedPhiladelphia, PA, USA
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The source reports an inactive or acquired company; current product identity needs review.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding year
startup.observe Directory coverage · Sources & method