Yandex

Cloud Provider

Legal name: MKPAO Yandex · HQ: RU · Public (YDEX) · Founded 1997

Russia's largest technology company, running Yandex Cloud and the YandexGPT models from data centers in Vladimir, Sasovo, Kaluga and near Moscow. Not related to Nebius, the former Yandex N.V. Several of its data centers were hit by drone strikes in October 2026.

Disclosure Quality

Score

12/100

Transparency Grade

T-5

near-total opacity

Grades run T-1 (most transparent) to T-5 (least transparent).

Red flags identified (1)

  • RF-04 · AI-specific energy use not disclosed

See the disclosure audit below for details.

Fiscal year 2026. Score computed from OpenButterfly T1–T6 disclosure framework audit. Confidence tier: C (Estimated, Documented Method).

Environmental Metrics

Confidence tiers: A measured and verified · B company-reported · C documented estimate · D uncertain estimate · E modeled · ND not disclosed.

Property-Line Noise (estimated)

~56.2 dBA at property line

method: cooling_load_noise_model; 55.0 dBA @ 30.0 MW ref + 10·log10(40 MW ÷ 30.0) → clamp [45.0, 75.0] dBA (category-typical site size for cloud_provider)

Source: OpenButterfly pipeline

E

Disclosure Audit

Show 5 disclosure checks (T1–T6 framework)
T1.1

Total electricity consumption disclosed

Electricity use and data center PUE were published for 2021 to 2023 on Yandex's sustainability site; no later figures found.

Partial
T1.2

AI-specific energy consumption disclosed

No AI-specific energy figure.

RF-04 (AI-specific energy use not disclosed)

Not Disclosed
T2.1

Scope 1 GHG emissions disclosed

No current emissions figures found.

Not Disclosed
T3.1

Total water withdrawal disclosed

No water figure found.

Not Disclosed
T6.1

GHG accounting methodology documented

No current methodology found.

Not Disclosed