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Side-by-side financial comparison of Quantum-Si Inc (QSI) and ScanTech AI Systems Inc. (STAI). Click either name above to swap in a different company.
ScanTech AI Systems Inc. is the larger business by last-quarter revenue ($631.0K vs $451.0K, roughly 1.4× Quantum-Si Inc). ScanTech AI Systems Inc. runs the higher net margin — -1532.9% vs -3904.9%, a 2372.0% gap on every dollar of revenue.
Silicon Quantum Computing Pty Ltd (SQC) is a Sydney, Australia-based quantum computing company.
QSI vs STAI — Head-to-Head
Income Statement — Q4 FY2025 vs Q3 FY2025
| Metric | | |
|---|---|---|
| Revenue | $451.0K | $631.0K |
| Net Profit | $-17.6M | $-9.7M |
| Gross Margin | 27.1% | 27.6% |
| Operating Margin | -4677.2% | -773.2% |
| Net Margin | -3904.9% | -1532.9% |
| Revenue YoY | -62.2% | — |
| Net Profit YoY | 46.8% | — |
| EPS (diluted) | $-0.07 | $-0.16 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q4 25 | $451.0K | — | ||
| Q3 25 | $552.0K | $631.0K | ||
| Q2 25 | $591.0K | $884.0K | ||
| Q1 25 | $842.0K | $346.1K | ||
| Q4 24 | $1.2M | — | ||
| Q3 24 | $787.0K | — | ||
| Q2 24 | $622.0K | — | ||
| Q1 24 | $457.0K | — |
| Q4 25 | $-17.6M | — | ||
| Q3 25 | $-35.7M | $-9.7M | ||
| Q2 25 | $-28.8M | $-6.9M | ||
| Q1 25 | $-19.2M | $-17.9M | ||
| Q4 24 | $-33.1M | — | ||
| Q3 24 | $-25.3M | — | ||
| Q2 24 | $-23.1M | — | ||
| Q1 24 | $-19.5M | — |
| Q4 25 | 27.1% | — | ||
| Q3 25 | 35.1% | 27.6% | ||
| Q2 25 | 59.4% | 14.3% | ||
| Q1 25 | 57.7% | 29.4% | ||
| Q4 24 | 51.2% | — | ||
| Q3 24 | 46.6% | — | ||
| Q2 24 | 56.9% | — | ||
| Q1 24 | 58.9% | — |
| Q4 25 | -4677.2% | — | ||
| Q3 25 | -7205.3% | -773.2% | ||
| Q2 25 | -5096.4% | -440.1% | ||
| Q1 25 | -2982.4% | -4503.9% | ||
| Q4 24 | -2573.6% | — | ||
| Q3 24 | -3569.0% | — | ||
| Q2 24 | -4252.6% | — | ||
| Q1 24 | -5111.6% | — |
| Q4 25 | -3904.9% | — | ||
| Q3 25 | -6467.9% | -1532.9% | ||
| Q2 25 | -4879.2% | -785.1% | ||
| Q1 25 | -2279.0% | -5174.2% | ||
| Q4 24 | -2778.6% | — | ||
| Q3 24 | -3216.4% | — | ||
| Q2 24 | -3713.7% | — | ||
| Q1 24 | -4261.3% | — |
| Q4 25 | $-0.07 | — | ||
| Q3 25 | $-0.17 | $-0.16 | ||
| Q2 25 | $-0.16 | $-0.16 | ||
| Q1 25 | $-0.11 | $-0.77 | ||
| Q4 24 | $-0.23 | — | ||
| Q3 24 | $-0.18 | — | ||
| Q2 24 | $-0.16 | — | ||
| Q1 24 | $-0.14 | — |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $21.6M | — |
| Total DebtLower is stronger | — | $17.7M |
| Stockholders' EquityBook value | $220.2M | — |
| Total Assets | $245.6M | $5.1M |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $21.6M | — | ||
| Q3 25 | $30.9M | — | ||
| Q2 25 | $22.2M | — | ||
| Q1 25 | $37.3M | — | ||
| Q4 24 | $49.2M | — | ||
| Q3 24 | $42.3M | — | ||
| Q2 24 | $59.6M | — | ||
| Q1 24 | $53.2M | — |
| Q4 25 | — | — | ||
| Q3 25 | — | $17.7M | ||
| Q2 25 | — | $17.7M | ||
| Q1 25 | — | $17.7M | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
| Q4 25 | $220.2M | — | ||
| Q3 25 | $235.2M | — | ||
| Q2 25 | $221.0M | — | ||
| Q1 25 | $246.9M | — | ||
| Q4 24 | $215.4M | — | ||
| Q3 24 | $210.5M | — | ||
| Q2 24 | $233.3M | — | ||
| Q1 24 | $253.8M | — |
| Q4 25 | $245.6M | — | ||
| Q3 25 | $260.1M | $5.1M | ||
| Q2 25 | $254.4M | $4.6M | ||
| Q1 25 | $271.2M | $5.1M | ||
| Q4 24 | $247.9M | — | ||
| Q3 24 | $236.5M | — | ||
| Q2 24 | $256.7M | — | ||
| Q1 24 | $275.6M | — |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $-16.3M | $-758.5K |
| Free Cash FlowOCF − Capex | $-16.4M | — |
| FCF MarginFCF / Revenue | -3628.4% | — |
| Capex IntensityCapex / Revenue | 3.8% | 0.0% |
| Cash ConversionOCF / Net Profit | — | — |
| TTM Free Cash FlowTrailing 4 quarters | $-97.3M | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $-16.3M | — | ||
| Q3 25 | $-32.0M | $-758.5K | ||
| Q2 25 | $-20.2M | $-1.5M | ||
| Q1 25 | $-26.2M | $-2.2M | ||
| Q4 24 | $-22.9M | — | ||
| Q3 24 | $-23.2M | — | ||
| Q2 24 | $-18.6M | — | ||
| Q1 24 | $-23.2M | — |
| Q4 25 | $-16.4M | — | ||
| Q3 25 | $-32.9M | — | ||
| Q2 25 | $-20.5M | $-1.5M | ||
| Q1 25 | $-27.5M | $-2.2M | ||
| Q4 24 | $-24.3M | — | ||
| Q3 24 | $-24.1M | — | ||
| Q2 24 | $-19.7M | — | ||
| Q1 24 | $-24.3M | — |
| Q4 25 | -3628.4% | — | ||
| Q3 25 | -5963.6% | — | ||
| Q2 25 | -3472.8% | -166.0% | ||
| Q1 25 | -3261.4% | -623.8% | ||
| Q4 24 | -2039.9% | — | ||
| Q3 24 | -3065.8% | — | ||
| Q2 24 | -3164.0% | — | ||
| Q1 24 | -5307.2% | — |
| Q4 25 | 3.8% | — | ||
| Q3 25 | 163.0% | 0.0% | ||
| Q2 25 | 55.3% | 1.0% | ||
| Q1 25 | 155.2% | 2.0% | ||
| Q4 24 | 120.4% | — | ||
| Q3 24 | 123.9% | — | ||
| Q2 24 | 181.2% | — | ||
| Q1 24 | 228.9% | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
