Alto Neuroscience vs Karius
Side-by-side comparison of AI visibility scores, market position, and capabilities
Nasdaq-listed (ANRO). Raised $120M PIPE (2026) to fund ALTO-207 Phase 2b. FDA Fast Track for ALTO-101. Biomarker-stratified psychiatry matching patients to drugs using brain biology. 4 data readouts through 2027.
About
Alto Neuroscience is a publicly-listed (Nasdaq: ANRO) clinical-stage biotech applying biomarker-stratified patient selection to psychiatry — matching patients to drugs based on brain biology rather than symptom checklists that have historically produced inconsistent treatment outcomes. The company raised a $120 million PIPE in 2026 to fund Phase 2b development of ALTO-207, a fixed-dose combination of pramipexole and ondansetron for treatment-resistant depression (TRD). The FDA has granted Fast Track designation for ALTO-101, and Alto has four clinical data readouts expected through 2027.
Karius raised $409M total including a $100M Series C in May 2024; its genomic blood test detects 1,000+ pathogens at 400+ U.S. hospitals; launched Karius Focus BAL for pneumonia in April 2025.
About
Karius is a Redwood City, CA-based life sciences company founded in 2014 that developed the Karius Test — a single blood draw that uses next-generation sequencing and AI to detect over 1,000 pathogens (bacteria, fungi, viruses, parasites) in seriously ill patients. The test is used when conventional cultures and targeted diagnostics fail, providing clinicians at transplant centers, children''s hospitals, and ICUs with a comprehensive pathogen report within 24 hours.
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