Model Comparison
Claude Opus 4 vs GPT-4o
Claude Opus 4: HeavyGPT-4o: Ultra-efficient
Side-by-side environmental impact comparison. Claude Opus 4 uses 12.8x more energy per query.
Claude Opus 4 uses 12.8x more energy than GPT-4o
5.5 Wh vs 0.43 Wh per query · 1.9 g vs 0.19 g CO₂ · 10 mL vs 2 mL water
Claude Opus 4
Anthropic
Energy per query5.5 Wh
CO₂ per query1.9 g
Water per query10 mL
VS
GPT-4o
OpenAI
Energy per query0.43 Wh
CO₂ per query0.19 g
Water per query2 mL
Claude Opus 4
ProviderAnthropic
CategoryText / Chat
Inference LocationAWS US East (Virginia) / US West (Oregon)
Confidenceestimated
Efficiency TierHeavy
GPT-4o
ProviderOpenAI
CategoryText / Chat
Inference LocationAzure US East / Sweden
Confidencepeer-reviewed
Efficiency TierUltra-efficient
Frequently Asked Questions
Which uses more energy, Claude Opus 4 or GPT-4o?
Claude Opus 4 uses 12.8x more energy per query than GPT-4o. Claude Opus 4 uses 5.5 Wh per query, while GPT-4o uses 0.43 Wh.
What is the carbon footprint difference between Claude Opus 4 and GPT-4o?
Claude Opus 4 uses 10.2x more CO₂ per query than GPT-4o. Claude Opus 4 emits 1.9 g of CO₂ per query compared to GPT-4o's 0.19 g.
Which is more environmentally friendly, Claude Opus 4 or GPT-4o?
GPT-4o is the more environmentally friendly option, using 0.43 Wh per query compared to Claude Opus 4's 5.5 Wh. That makes Claude Opus 4 roughly 12.8x more energy-intensive.
Calculate your footprint with these models
See how your daily usage of Claude Opus 4 and GPT-4o adds up over time. Our calculator estimates energy, carbon, and water impact.
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