Anthropic sustainability score: 31/100
Anthropic is a San Francisco-based AI safety company founded in 2021, developing large language models including Claude. With ~3,000 employees and rapidly growing revenue, it is one of the largest consumers of cloud compute infrastructure globally, relying primarily on AWS and Google Cloud for its computational needs.
Founded 2021Head office San Francisco, USStaff ~3,000Revenue ~$9B (2025 ARR)Website ↗
Anthropic is a $380B-valued AI company with virtually no environmental accountability. It reports zero emissions data despite being one of the world's largest compute consumers, projects 5GW data center needs by 2028, and advocates for weaker environmental permitting rules. No targets, no renewable energy strategy, no transparency.
Anthropic scores 31/100 (Below expectations) on SINK's independent climate assessment, scored from public data only. Scores are free. Companies can never pay for anything about their own score. Last verified May 2026.
That places Anthropic joint 658th of 934 companies scored, and 57th of 73 in SaaS / Digital Services.
What is Anthropic doing well, and where does it fall short?
Strongest on Controversies & Red Flags and Resource Use & Waste (7/10, 2/10). Weakest on Emissions Trajectory and Carbon Footprint: Operations (0/10, 1/10).
Where Anthropic lost points
For each question that lost points, the evidence our public rubric looks for that we didn't find.
- Emissions from its own operations1/10No emissions figures for its own operations, not even an estimate from energy bills.
- Emissions from its supply chain1/10No assessment of where its supply-chain emissions come from.
- Whether its emissions are falling0/10No evidence its emissions are falling, not even from energy bills or mileage.
- How clean its energy is1/10No renewable energy tariff or major efficiency investment shown.
- Its effect on nature1/10No evidence it knows its main risks to nature.
- How it uses materials and handles waste2/10No active waste reduction, reuse or repair shown.
- Its effect on water1/10No figures for its water use.
- Its climate targets1/10No emissions reduction targets.
- How openly it reports1/10No sustainability information published.
- Its record on controversies7/10Points deducted for controversies or its business model. The finding is under question 10.
A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.
How is Anthropic's SINK score calculated?
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleWhat evidence is Anthropic's score based on?
8 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
50% of them were published by Anthropic itself; the rest come from independent sources.
Scored on 6 April 2026 under an earlier version of our method. We're re-checking it under the current method.
If you believe a source has been misread or a newer version exists, submit a challenge.
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How does Anthropic compare with other saas / digital services companies?
Where Anthropic sits among saas / digital services peers.
Among the 73 major saas / digital services brands we've scored, Anthropic sits 57th of 73.
Who scores higher in SaaS / Digital Services?
The 3 companies in the sector scoring nearest above Anthropic.
Roblox is a $3.6B gaming platform with 111M daily users and zero environmental disclosure.
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