Compresr

Machine Learning · AI Development Tools
2open roles
1backers · Y Combinator
2026founded
18technologies in use

Overview

Compresr is an LLM context-compression API: send long context plus your query, get back a shorter context that keeps the answer-bearing tokens and drops the rest. Cut token cost and latency; at light compression, match or beat full-context accuracy. Python SDK, TypeScript SDK, or hosted HTTP API.

Key facts

As of Nov 13, 2026, Alion lists 2 open roles at Compresr. Compresr is headquartered in San Francisco, United States. It was founded in 2026.

Open roles
2Its careers board, read on Nov 12, 2026
Headquarters
San Francisco, United StatesAlion company profile, updated Nov 12, 2026
Founded
2026Alion company profile, updated Nov 12, 2026
Technologies in its job postings
18Named in its job postings

Funding and backers

Hiring now
2
open roles
Backers
1
Y Combinator
Momentum
0/100
no fresh signals
Last sign of life
1 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Jan 2026 Went through Y Combinator 2026 Founded
Tractionpublic signals, read monthly
Web presence
top 6%
of 133.2M domains by links, Common Crawl
GitHub stars
657 ★
3 public repositories
Backed byfrom the funds' portfolios and accelerator catalogs
Y Combinator W26 accelerator
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Jobs

≈ $142k – $306k per year (Estimated) · Hybrid · Full-Time · San Francisco · Lausanne
Python
JavaScript
TypeScript
FastAPI
Databases
PostgreSQL
Redis
Supabase
AI/ML
Claude Code
LLM
Frontend
Next.js
React.js
DevOps
GitHub Actions
AWS
Docker
Cloudflare
GitHub
Apply
All 2 jobs at Compresr salaries, cities, levels and how long each has been open

Growth

Hiring Momentum
28/100
Slowing
Open positions
2
0 opened / 0 closed in 30 days
ATS activity
Every ~6 hours
11/12/2026
Hiring Dynamics 0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Backend
50% ▼
Early Careers
50% ▼

Tech stack

Technologies named in job postings at Compresr over the last 12 months, by layer, with the share of postings for each.
Technologies in use
18
Postings analysed
2
Stack modernity
88/100AI adopter
Languages
Python
JavaScript
TypeScript
Frameworks & libraries
FastAPI
Next.js
React.js
Databases
PostgreSQL
Redis
Cloud & platforms
Cloudflare
AWS
Anthropic
OpenAI
GitHub
GitHub Actions
Supabase
Developer tools
Claude Code
Docker
AI & ML
LLM
Sign in to see how your skills match this stack Sign In

Connections

List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors1
Y CombinatorVia a fund
6310 portfolio companies
Report a mistake

News

Blog 5 months ago
Compresr Changelog
Release notes for the Compresr SDK and API surface.
Read more
Report

Offices

Where the company hires and what each office is for
Cities
2
Hiring now
2
Countries
2
Busiest office
San Francisco
Loading the map
Headquarters Builds here Office with open vacancies Tap a pin for the office
San Francisco United States
HQ
2 open roles 50% engineering
hires for Backend, Early Careers
seen since Jul 2026 job postings
Lausanne Switzerland
Engineering / R&D
2 open roles 50% engineering
hires for Backend, Early Careers
seen since Jul 2026

How to cite this page

Alion, "Compresr: key facts", as of Nov 13, 2026. https://alion.io/company/compresr

These figures are published under a free licence. You may reuse them, including commercially, as long as you credit Alion and link back to this page. CC BY-SA 4.0