Valthos is a New York City-based biodefense company developing frontier AI systems that identify biological threats and design medical countermeasures in real time. The company emerged from stealth in October 2025 with $30 million in backing from the OpenAI Startup Fund, Lux Capital, and Founders Fund, with a founding team drawn from Palantir, DeepMind, the Broad Institute, and the Arc Institute. Valthos is building AI-powered biodefense infrastructure to rapidly analyze biological sequences and update medicines at scale for experts in government and the life sciences. The company does not yet publish a public API, developer portal, or open-source surface.
Valthos is profiled on the APIs.io network. Tagged areas include Company, Defense Bio, Biodefense, Biosecurity, and Artificial Intelligence.
Valthos’ developer surface includes engineering blog, product news, and 6 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Health regime, so
Regulatory Posture carries 15 points of the composite.
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Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
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aid: valthos
name: Valthos
description: Valthos is a New York City-based biodefense company developing frontier AI systems that identify biological threats
and design medical countermeasures in real time. The company emerged from stealth in October 2025 with $30 million in backing
from the OpenAI Startup Fund, Lux Capital, and Founders Fund, with a founding team drawn from Palantir, DeepMind, the Broad
Institute, and the Arc Institute. Valthos is building AI-powered biodefense infrastructure to rapidly analyze biological
sequences and update medicines at scale for experts in government and the life sciences. The company does not yet publish
a public API, developer portal, or open-source surface.
url: https://raw.githubusercontent.com/api-evangelist/valthos/refs/heads/main/apis.yml
deliveryModel:
model: unknown
open_source: false
commercial: false
callable_host: false
label: Delivery model not determined — needs a product licence on record
confidence: low
source:
- none
generated: '2026-08-28'
method: derived
accessModel:
pricing: unknown
onboarding: unknown
trial: false
try_now: false
public: false
label: Unknown
confidence: low
source: []
generated: '2026-07-22'
method: derived
image: https://valthos.com/favicon.ico
x-type: company
x-source: vc-portfolio
x-backed-by:
- lux-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Defense Bio
- Biodefense
- Biosecurity
- Artificial Intelligence
- Medical Countermeasures
- Life Sciences
- National Security
- New York
apis: []
common:
- type: DomainSecurity
url: security/valthos-domain-security.yml
- type: LLMsTxt
url: llms/valthos-llms.txt
- type: Website
url: https://valthos.com
- type: Blog
url: https://valthos.com/blog/intro
- type: Careers
url: https://jobs.ashbyhq.com/valthos
- type: Twitter
url: https://x.com/ValthosTech
- type: LinkedIn
url: https://www.linkedin.com/company/valthos
- type: News
url: https://www.bloomberg.com/news/articles/2025-10-24/openai-backs-a-new-venture-trying-to-thwart-ai-bio-attacks
- type: Features
data:
- 'Sector: Biodefense / defense-bio (AI for biological threat identification and medical countermeasures)'
- 'Mission: any threat to human health can be immediately identified and neutralized'
- 'Emerged from stealth: October 2025'
- 'Funding: $30 million from the OpenAI Startup Fund, Lux Capital, and Founders Fund'
- 'Founding team origins: Palantir, DeepMind, Broad Institute, Arc Institute'
- 'HQ: New York City, NY (San Francisco secondary for select roles)'
- 'Hiring (Jul 2026): software, applied AI, computational biology, forward-deployed, product engineering roles in New York'
- 'Public API surface: none published as of 2026-07-21'
sources:
- https://valthos.com
- https://valthos.com/blog/intro
- https://api.ashbyhq.com/posting-api/job-board/valthos
updated: '2026-07-21'
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
x-enrichment:
date: '2026-07-21'
status: minimal
artifacts_added: 3
pass: local-v1
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