funding_articleMay 20, 2026Confidence: high
Sublingual | Y Combinator
Winter 2025 batch; open-source LLM observability and evals with zero code changes (pip install).
Affected score: yesObserved: May 20, 2026Round: Pre-Seed
raisedpre-seed
S
Sublingual
Pre-SeedMarket data is refreshed once per day from public sources. Information may be incomplete or outdated — verify independently before making decisions. This is not investment advice.
Beta
DealFlow OS uses public web data and automated enrichment. Research may be incomplete, outdated, or incorrect. Verify important information before making investment or outreach decisions.
Investor read
Evidence-bound summary — expand sections for movement, risks, and signals.
Memo snapshot · May 20, 2026, 6:14 PM
Beta
DealFlow OS uses public web data and automated enrichment. Research may be incomplete, outdated, or incorrect. Verify important information before making investment or outreach decisions.
What they do
Sublingual LLM evals and observability platform.
Funding
Raised $500K across 1 funding round. Latest: $500K Pre-seed (Jan 2025). Investors: Y Combinator. (High).
Quick read
- •Sublingual LLM evals and observability platform.
- •Reported angle: Launch YC: Sublingual
- •Indexed activity snapshot: 1 funding‑related row(s), 0 hiring‑related, 0 GitHub‑tagged, 1 product/news‑style — scoring reflects corpus coverage only.
Stage
Seed (YC)
Evidence summary
Verified facts
- •Sublingual LLM evals and observability platform.
- •Reported angle: Launch YC: Sublingual
- •Indexed activity snapshot: 1 funding‑related row(s), 0 hiring‑related, 0 GitHub‑tagged, 1 product/news‑style — scoring reflects corpus coverage only.
Recent movers
- •May 20, 2026 · ycombinator.com — Sublingual | Y Combinator
- •May 20, 2026 · ycombinator.com — Launch YC: Sublingual
- •May 20, 2026 · ycombinator.com — Sublingual | Y Combinator
- •May 20, 2026 · ycombinator.com — Launch YC: Sublingual
- •Y Combinator
Funding
Raised $500K across 1 funding round. Latest: $500K Pre-seed (Jan 2025). Investors: Y Combinator. (High).
Hiring
No hiring/careers evidence indexed (Low).
GitHub
No GitHub‑linked evidence indexed (Low).
Product / news
1 product/news‑styled row(s); headline risk without filings (High).
Traffic / social
No traffic/social evidence indexed (Low).
Funding & hiring signals
Open roles (indexed)
No open roles indexed yet.
Failed or blocked links
- public_page:_pressnot_foundLast checked Mon, May 11, 04:44 AM
HTTP 404
- public_page:_newsnot_foundLast checked Mon, May 11, 04:44 AM
HTTP 404
- public_page:_jobsnot_foundLast checked Mon, May 11, 04:44 AM
HTTP 404
- public_page:_companynot_foundLast checked Mon, May 11, 04:44 AM
HTTP 404
- public_page:_careersnot_foundLast checked Mon, May 11, 04:44 AM
HTTP 404
- public_page:_blognot_foundLast checked Mon, May 11, 04:44 AM
HTTP 404
- public_page:_aboutnot_foundLast checked Mon, May 11, 04:44 AM
HTTP 404
DealFlow growth score
42.0Limited recent public signal
7D+0%
30D+0%
Needs Review
The score is an algorithmic estimate based on observed public company-level signals. It may be incomplete, stale, or inaccurate and is not investment, legal, tax, or business advice.
Source health
- public_market_enrichmentokLast checked Mon, May 11, 04:44 AM
- public_page:_okLast checked Mon, May 11, 04:44 AM
- public_page:homeokLast checked Mon, May 11, 04:44 AM
DealFlow score momentum
427D +030D +0
100500
More runs will build history.
The score is an algorithmic estimate based on observed public company-level signals. It may be incomplete, stale, or inaccurate and is not investment, legal, tax, or business advice.
Signal breakdown
Latest momentum signal per category. Expand a card to inspect raw payloads.
Public source summary
- Total evidence rows
- 3
- Latest evidence
- Wed, May 20, 06:14 PM
Source types found
company_sitefunding_articlepress
Strongest / recent news-style rows
Sublingual | Y Combinator
Wed, May 20, 06:14 PM · confidence 88%high quality
https://www.ycombinator.com/companies/sublingualLaunch YC: Sublingual
Wed, May 20, 06:14 PM · confidence 85%medium quality
https://www.ycombinator.com/launches/Muu-sublingual-llm-evals-for-lazy-devs
Public signal timeline
Newest first · 3 event(s)
1
Wed, May 20, 06:14 PM · company_site · 85% · verified_publichigh quality
Source ↗Sublingual
LLM evals and observability platform.
2
Wed, May 20, 06:14 PM · funding_article · 88% · verified_publichigh quality
Source ↗Sublingual | Y Combinator
Winter 2025 batch; open-source LLM observability and evals with zero code changes (pip install).
3
Wed, May 20, 06:14 PM · press · 85% · verified_publicmedium quality
Source ↗Launch YC: Sublingual
Pip-install observability without touching application code.
Official / company site
1 row(s)
company_site·Wed, May 20, 06:14 PM·Confidence 85%high qualityverified_public
Sublingual
LLM evals and observability platform.
https://sublingual.ai/News
1 row(s)
press·Wed, May 20, 06:14 PM·Confidence 85%medium qualityverified_public
Launch YC: Sublingual
Pip-install observability without touching application code.
https://www.ycombinator.com/launches/Muu-sublingual-llm-evals-for-lazy-devsFunding / news
1 row(s)
funding_article·Wed, May 20, 06:14 PM·Confidence 88%high qualityverified_public
Sublingual | Y Combinator
Winter 2025 batch; open-source LLM observability and evals with zero code changes (pip install).
https://www.ycombinator.com/companies/sublingualPrivate workspace
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