Claude Opus 4 Environmental Impact
Anthropic's most capable model — high energy use
- Architecture
- Dense Transformer (decoder-only)
- Context
- 200,000 tokens
- Provider
- Anthropic
Energy per query
5.5 Wh
18x more than a Google search (0.3 Wh)
CO2 per query
1.9 g
US East (Virginia) grid (450 gCO₂/kWh)
Water per query
10 mL
~97 queries to fill 1 litre
Processing location
AWS US East (Virginia) / US West (Oregon)
Provider
Anthropic
Category
Text / Chat
Grid carbon intensity
450 g CO2/kWh (25% renewable)
How does Claude Opus 4 compare?
Detailed Breakdown
Energy Consumption
Claude Opus 4 is Anthropic's most capable and most energy-intensive model, consuming approximately 5.5 Wh per query — estimated at roughly 2x the energy of Claude 3.7 Sonnet based on API pricing differentials and model scale. Opus models are significantly larger than Sonnet variants.
Power Source & Carbon
Runs on AWS infrastructure in US East (Virginia) and US West (Oregon), with additional capacity on Google Cloud. Anthropic has not published Scope 1, 2, or 3 emissions in any public filing as of 2026.
Water Usage
At approximately 10.3 mL per query (derived from 5.5 Wh at AWS's WUE of ~1.87 mL/Wh), Claude Opus 4 has a moderate water footprint proportional to its energy consumption.
About Claude Opus 4
Claude Opus 4 is a text and chat model from Anthropic, released in May 22, 2025. Anthropic's most capable model — high energy use. Each query uses 5.5 Wh of energy and produces 1.9 g of CO₂. That's 18x the energy of a Google search — reflecting the computational demands of text and chat.
These figures are estimates derived from hardware specifications and API benchmarks — Anthropic has not published official energy data for Claude Opus 4. Actual consumption may vary significantly depending on batching, quantisation, and infrastructure optimisations that we cannot observe from outside.
Claude Opus 4 in Context
The efficiency alternative
Gemini Nano performs the same type of task using just 0.01 Wh per query — 100% less energy than Claude Opus 4. For a user sending 25 queries per day, switching would save 50.1 kWh per year.
At global scale
With an estimated 10M+ daily users averaging 10 queries each, Claude Opus 4 consumes roughly 550 MWh of electricity per day — enough to power 18333 homes.
Your yearly Claude Opus 4 footprint
At 25 queries per day, your annual Claude Opus 4 usage consumes 50.2 kWh — a meaningful fraction of household electricity. That produces 17.6 kg of CO₂.
Anthropic Claude Family
How energy efficiency has evolved across versions.
What does your Claude Opus 4 usage cost the planet?
Use our calculator to estimate your personal environmental footprint based on how often you use Claude Opus 4.
Calculate My ComputeFrequently Asked Questions
How much energy does Claude Opus 4 use per query?
Each Claude Opus 4 query consumes approximately 5.5 Wh of energy. This is 18x more than a traditional Google search (~0.3 Wh).
What is Claude Opus 4's carbon footprint?
Based on the carbon intensity of AWS US East (Virginia) / US West (Oregon), each query produces approximately 1.9 g of CO2. The grid in this region has a carbon intensity of 450 g CO2/kWh with 25% renewable energy.
How much water does Claude Opus 4 use?
Each query consumes approximately 10 mL of water, primarily used for cooling the data centers that process the request.
How does Claude Opus 4 compare to a Google search?
A Claude Opus 4 query uses 18x more than a Google search in terms of energy. A Google search uses approximately 0.3 Wh, while Claude Opus 4 uses 5.5 Wh.
Technical Details
Architecture
Dense Transformer (decoder-only)
Context window
200,000 tokens
Release date
2025-05-22
Open source
No