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Compresr

Compresr is a YC Winter 2026 (W26) company. Team of 4.

About Compresr

GPAgent's own fund-neutral profile, written from public information. Updated Oct 4, 2026.

Summary

Compresr builds a context compression API for teams running LLM-powered agents and retrieval-augmented generation pipelines. It strips tokens from input context that the model would not meaningfully use, cutting token volume by up to 90% while matching or beating full-context accuracy on benchmarks. The product replaces manual prompt trimming and brute-force full-context calls that inflate cost and latency.

Business model

Per-token or per-query pricing accessed through a pip-installable SDK, with enterprise on-premises access available by arrangement.

Go-to-market

B2B developer teams adopt it through a self-serve SDK install and a live playground; enterprise and on-premises buyers engage through a booked intro call.

From the Y Combinator listing

How Compresr describes itself in Y Combinator's public directory.

LLM context compression for better accuracy

Compresr provides an API that compresses LLM context without losing what matters. It’s a drop-in for agents and RAG that cuts token costs and improves accuracy.

Facts

Industry
B2B / B2B -> Infrastructure
Team size
4
Status
Active
Stage
Early

Founders (4)

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