OpenAI — Gross Margin: 33%

Note: The source text directly states 'OpenAI posted a 33% gross margin' as of the time period discussed (2025). The claim specifies '33% (as of 2025-12)' and the source confirms this exact figure. The text is cut off mid-sentence but clearly confirms the 33% gross margin figure. The additional context about inference costs constraining margins and the decline from 40% in 2024 aligns with the source's mention of margins being 'constrained by inference c[osts]'.