Synth

We help AI agents learn from data.

www.usesynth.ai

Synth

We help AI agents learn from data.

www.usesynth.ai

HQRemote

Team Size3

Open JobsUnknown

Total Funding$500K

Latest Fundraiselast year

TL;DR

Stage / Lead investor: Pre-Seed — Y Combinator (lead)

Product: Training & evaluation layer for production LLM workflows (prompt optimization + continual learning)

Headquarters: San Francisco, California

Founded: 2024

Employees: 3

Key executive: Josh Purtell (CEO)

Company Overview

Problem Domain

Production LLM workflows — prompt optimization and continual learning from live traffic and reward signals.

Founded

2024

Funding Track Record

Pre-Seed- 2024-12-04

Pre-Seed round announced Dec 4, 2024.

Investor Signal

“Y Combinator (lead investor)”

Founders

What we do

TL;DR

Company Overview

Funding Track Record

Founders

What we do

TL;DR

Stage / Lead investor: Pre-Seed — Y Combinator (lead)

Product: Training & evaluation layer for production LLM workflows (prompt optimization + continual learning)

Headquarters: San Francisco, California

Founded: 2024

Employees: 3

Key executive: Josh Purtell (CEO)

Company Overview

Problem Domain

Production LLM workflows — prompt optimization and continual learning from live traffic and reward signals.

Founded

2024

Funding Track Record

Pre-Seed- 2024-12-04

Pre-Seed round announced Dec 4, 2024.

Investor Signal

“Y Combinator (lead investor)”

Founders

What we do

Join the Team

Teeming tracks opportunities at over 24,000 AI startups, then works with you to find (and land) the one you'll love.

Machine Learning Engineer

Part-timeMunich, DE

Part-time • Munich, DE

Software Engineer

ContractNovi Sad, RS

Contract • Novi Sad, RS

Frontend Developer

ContractNew York, US

Contract • New York, US

Software Engineer

Part-timeMunich, DE

Part-time • Munich, DE

Mobile Developer

ContractNew York, US

Contract • New York, US

Machine Learning Engineer

ContractAmsterdam, NL

Contract • Amsterdam, NL