Compresr
YC W26 · Active · LLM context compression for better accuracy
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
 OpenToolsShared: llm, apiActiveAI, Devtools | AI, Devtools | Active | YCS23 |
 The Token CompanyShared: compression, llm, contextActiveAI | AI | Active | YCW26 |
 ZeroEntropyShared: context compression, agent, infrastructureAcquiredAI, Devtools | AI, Devtools | Acquired | YC +1W25 |
 CaptainShared: improve accuracy, rag, agentActiveAI, Data, Devtools | AI, Data, Devtools | Active | YCW26 |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
 CodagShared: accuracy, compresses, tokenActiveAI, Devtools | AI, Devtools | Active | YCS26 |
 BricksAIShared: llm, token, apiInactiveAI, Devtools | AI, Devtools | Inactive | YCS22 |
 LLM StatsShared: llm, infrastructureActiveAI, Devtools | AI, Devtools | Active | YCS25 |
 DownlinkShared: accuracy, api, improveActiveAI, Devtools | AI, Devtools | Active | YCW24 |
 OrchestraShared: llm, cuts, costActiveAI, Devtools | AI, Devtools | Active | YCS26 |
Also from W26 in AI
All of W26| Company | Category | Status |
|---|---|---|
 /dev/fast/dev/fast is the AI-native code forgeActiveAI, Devtools | AI, Devtools | Active |
 10x ScienceThe AI-native platform for next-generation protein characterization.ActiveAI | AI | Active |
 21stUI building blocks for the agentic internetActiveAI, Devtools | AI, Devtools | Active |
 AemonThe Forward-Deployed AI Research EngineerActiveAI, Devtools | AI, Devtools | Active |
 Agentic FabriqThe control plane for AI agents.ActiveAI | AI | Active |
 Alt-XBuilding the best venue for private markets exposure.ActiveAI, Data | AI, Data | Active |
Founders
- Ivan ZakazovFounder/CEO
- Berke ArginFounder
- Kamel CharafFounder/CPO
About Compresr
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.
- YC batch
- W26 · Winter 2026
- Status, per YC
- Active
- Category
- AI, Developer tools
- Team size
- 3
- Location
- San Francisco, CA, USA
- Founded
- 2026
- Checked
- 32m ago
Compresr: questions
Which YC batch was Compresr in?
Compresr was in Y Combinator's Winter 2026 batch (W26).
Is Compresr still active?
Y Combinator lists Compresr as active.
Who founded Compresr?
Compresr's founders, as listed on its YC page: Ivan Zakazov (Founder/CEO), Berke Argin (Founder), Kamel Charaf (Founder/CPO).
Where is Compresr based?
Compresr lists San Francisco, CA, USA as its location on YC's directory.
Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.