ResearchBenchmarksBinary Classification on Long COVID Symptoms Brain fog (val)Binary Classification on Long COVID Symptoms Brain fog (val)Follow0.25F1 ScorePythia0.050320.102160.1540.20584Feb 17, 2026Evaluation resultsMethodMethodLinksF1 ScoreDelta (%)PythiaPrevalence=3%Prevalence=3%2026.020.25331LexiconPrevalence=3%Prevalence=3%2026.020.058—