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Guide Labs
YC W24San Francisco, US · Founded 2023 · Delaware corporation · 6 employees · 6 known investors
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Guide Labs is a product-focused research company developing interpretable AI systems that humans and domain experts can understand, steer, and debug. The company builds machine learning models designed for reliability and trustworthiness across applications including language models and image generation.
Also known as Guide Labs Inc · Guide Labs
Founders & leadership· Y Combinator alumni (W24)
Guide Labs was founded in 2023 by Julius Adebayo, Fulton Wang, and Aya Abdelsalam Ismail.
Investors · 6
How we know: a partner's Signal profile · funding news · initialized.com · Y Combinator's founder network · Not right? Tell us
How we know: Lombardstreet Ventures's portfolio page · the VCSheet dataset · open dataset · 5k.vc investor directory · Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · pioneerfund.vc · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: funding news · Y Combinator's founder network · Not right? Tell us
Funding
SEC filings, press & company announcements$9.3M disclosed across 1 of 2 rounds · 2024–2025
- Undisclosed amountseedDec 2025 · 2 sourcesSource ↗
▶$9.3MraisedJun 2024 · 14 investors · Other TechnologyRule 506(b)
- Julius AdebayoExecutive Officer, Director, Promoter
- Fulton WangExecutive Officer, Director, Promoter
- Offering amount
- $9.4M
- Amount sold
- $9.3M
- First sale
- Jun 2024
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Guide Labs is developing a class of interpretable and auditable AI systems, including foundation models intended to be reliably debugged, trusted, and understood by their users. The company positions interpretability as an inherent property of its models rather than an after-the-fact analysis layer.
Its platform, Clarity, is presented as an interpretable AI platform that traces model behavior back to its sources of influence, with attribution along three dimensions: the prompt, concepts, and training data. For example, users can see which part of a prompt is responsible for a given output. Access to Clarity is offered through the company's website.
Traction
Guide Labs offers access to its Clarity platform, which it introduced in an announcement dated June 3, 2026.", "go_to_market">
▸Full profile — market position, technology
Market position
The company describes its offering as the first inherently interpretable AI platform and states it is backed by leading investors.
Technology
Guide Labs' approach centers on inherently interpretable model architectures rather than post-hoc explanation tools. Its Clarity platform surfaces attributions that map a model's output to specific parts of the input prompt, to underlying concepts, and to training data. The company states it developed the first interpretable generative diffusion model and the first interpretable large language model.
Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Related companies · 10
Companies working in the same space as Guide Labs.
Timeline · 1
launches, deals, and filingsGuide Labs announced Clarity, a platform it describes as an inherently interpretable AI platform, with features for attributing model outputs to parts of the prompt, concepts, and training data.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 2
corporate structureIn the news
▸Research sources · 1
primary sources listed
- Guide Labsguidelabs.ai · web
1 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Guide Labs do?
- Guide Labs builds interpretable, auditable AI systems and foundation models that users can debug, trust, and understand.
- Who founded Guide Labs?
- Guide Labs was founded by Julius Adebayo, Fulton Wang, Aya Abdelsalam Ismail in 2023.
- Who are Guide Labs's investors?
- Guide Labs's investors include Initialized Capital, Lombardstreet Ventures, Pioneer, The E14 Fund, Y Combinator, Tectonic Ventures.
- How much funding has Guide Labs raised?
- Guide Labs has disclosed $9.3M raised across 1 of its 2 known rounds.
- Where is Guide Labs headquartered?
- Guide Labs is headquartered in San Francisco, US.