Model Comparison
GPT-4o vs o3-pro
GPT-4o: Ultra-efficiento3-pro: Very heavy
Side-by-side environmental impact comparison. o3-pro uses 81.4x more energy per query.
o3-pro uses 81.4x more energy than GPT-4o
35.0 Wh vs 0.43 Wh per query · 15.3 g vs 0.19 g CO₂ · 126 mL vs 2 mL water
GPT-4o
OpenAI
Energy per query0.43 Wh
CO₂ per query0.19 g
Water per query2 mL
VS
o3-pro
OpenAI
Energy per query35.0 Wh
CO₂ per query15.3 g
Water per query126 mL
GPT-4o
ProviderOpenAI
CategoryText / Chat
Inference LocationAzure US East / Sweden
Confidencepeer-reviewed
Efficiency TierUltra-efficient
o3-pro
ProviderOpenAI
CategoryText / Chat
Inference LocationAzure / Multi-cloud
Confidenceestimated
Efficiency TierVery heavy
Frequently Asked Questions
Which uses more energy, GPT-4o or o3-pro?
o3-pro uses 81.4x more energy per query than GPT-4o. GPT-4o uses 0.43 Wh per query, while o3-pro uses 35.0 Wh.
What is the carbon footprint difference between GPT-4o and o3-pro?
o3-pro uses 80.5x more CO₂ per query than GPT-4o. GPT-4o emits 0.19 g of CO₂ per query compared to o3-pro's 15.3 g.
Which is more environmentally friendly, GPT-4o or o3-pro?
GPT-4o is the more environmentally friendly option, using 0.43 Wh per query compared to o3-pro's 35.0 Wh. That makes o3-pro roughly 81.4x more energy-intensive.
Calculate your footprint with these models
See how your daily usage of GPT-4o and o3-pro adds up over time. Our calculator estimates energy, carbon, and water impact.
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