Carrot Labs
Carrot Labs is a YC Winter 2026 (W26) company. Based in San Francisco, CA, USA. Team of 2.
About Carrot Labs
Summary
Carrot Labs builds specialized large language models tuned to a business's specific workflows, then continuously refines them against that business's own success metrics. The result is a model that encodes proprietary operational knowledge, growing more accurate and harder to replicate over time. This replaces the manual work of prompt engineering, generic model selection, and ad-hoc fine-tuning that B2B teams do to coax general-purpose AI into fitting their processes.
Business model
Omitted: the sources do not specify how Carrot Labs charges customers.
Go-to-market
Carrot Labs targets B2B companies that already run AI workflows and need accountability over that spend. The website surfaces a product called SuperPenguin, which attributes and optimizes AI costs at the operational level where a business actually measures results.
From the Y Combinator listing
Continuous Fine-Tuning for AI Models
We build specialized LLMs for your business’s specific workflows and use cases, then continuously hone them against your success metrics, capturing your proprietary know-how in the model so it gets more valuable and harder to copy as you grow.
Facts
- B2B / B2B
- San Francisco, CA, USA
- 2
- Active
- Early
Founders (2)
- Christopher Acker
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