There is no published measurement: OpenAI has never disclosed how much energy Sora uses, and the service was shut down in April 2026. The figure in circulation comes from a measurement made in 2025 on another generator (944 Wh for 5 seconds) and from a blog post's estimate (0.94 kWh for 10 seconds). Our extrapolation gives 0.31 to 1.6 kWh for 10 seconds, depending on the resolution.
Read the source article: AI video generation environmental impact: energy, CO2e, water