Gemini 4 Carbon vs GPT-6 Luna

A direct, empirical evaluation of Gemini 4 Carbon (Google DeepMind) against GPT-6 Luna (OpenAI).

Gemini 4 Carbon

Developed by Google DeepMind · Carbon-Aware Frontier Transformer on TPU v6e parameters

Sub-watt green computing, 62% energy reduction per million tokens, carbon-aware datagrid routing, and eco-tier batch execution discounts.

GPT-6 Luna

Developed by OpenAI · Proprietary High-Throughput Distillation parameters

High-throughput document extraction, sub-second routing, customer service triage, code autocomplete, and cost-optimized reasoning via Luna Pro mode.

Metric Gemini 4 Carbon GPT-6 Luna
SWE-bench Verified 69.2% 48.2%
MMLU-Pro 84.6% 74.6%
MATH-500 91.4% 84.1%
Context Window 1,000,000 tokens 1,050,000 tokens
Input Pricing (per 1M) $0.80 $0.10
Output Pricing (per 1M) $2.40 $0.50