What will OpenAI's cumulative net loss be for calendar year 2026? (positive number)

The median estimate for OpenAI's cumulative 2026 GAAP net loss sits at $62.0 billion. In Q1 2026, OpenAI posted a $21.3 billion GAAP net loss, heavily driven by fair-value charges 2 sources, and Q2 saw the operating loss widen to $12.3 billion investing.com. H1 essentially locks in mid-$30 billion in losses. For H2, top-line scale-out—with an annualized run-rate surpassing $40 billion qz.com—is offset by massive compute and safety overhead. Set against related estimates of accelerating top-line revenue, the immense compute and overhead costs required to support that growth push the loss expectations upward . Combining the H1 baseline with H2 operating losses lands the central estimate at $62.0 billion. The downside (P10 ~$42.0B) captures potential fair-value gains if AI-capex markets cool or if the metric isolates 'attributable to OpenAI' after non-controlling interests wheresyoured.at. The upside (P90 ~$90.0B) accounts for aggressive 'kitchen-sink' pre-IPO impairment charges and accelerated equity-award expenses.