YC-Bench B
AI benchmark · Coding
- Publisher
- Collinear
- On X
- @collinearAI ↗
- Tier
- B why
- Snapshot
Latest from Collinear on X
@collinearAI ↗What is YC-Bench?
YC-Bench measures whether LLM agents can maintain long-term strategic coherence by running a simulated startup over a one-year horizon of hundreds of turns, scored by final funds.
Enterprise work mostly
“The agent must manage employees, select task contracts, and maintain profitability in a partially observable environment”
arxiv.org/abs/2604.01212 ↗Games
“tasking an agent with running a simulated startup over a one-year horizon spanning hundreds of turns”
arxiv.org/abs/2604.01212 ↗
Who built YC-Bench
Collinear built it
“Evaluations we build to find where models fail”
collinear.ai/research ↗
Paper: arxiv.org/abs/2604.01212 ↗
Tier B
Established: 15 or more models scored, or curated RL directories rate it.
How much stands behind a tier: usage, who backs it, a confirmed line from its own site or paper, and a clear read on X. High with three of the four, medium with two, low otherwise.
- 10 models scored
- built by Collinear
- in curated RL directories (3 pts)
How we got to tier B
- Adoption: 10 models scored; built by Collinear. Tier C.
- Not yet read on X.
- In curated RL directories: 3 points, a floor of B. Raised to B.
- Confirmed: a line from its own site or paper places it.
A clear view on X moves a tier one step up or down; most entries don't move. How tiers work.
Where YC-Bench sits
Its realm in the universe, live. Hover a star for its name; click to open it. Open it in the universe
Next: browse all benchmarks. Entry from the RL Research daily scrape of public sources, 2026-10-11 snapshot.