GPT-6 Luna (High) vs Granite 4.2 30B

Which is better for the money: GPT-6 Luna (High) by OpenAI or Granite 4.2 30B by IBM? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.

Clear winner

OpenAIGPT-6 Luna (High)On the frontier

Intelligence: 32.90
Total cost: $47.9

IBMGranite 4.2 30BOff the frontier

Intelligence: 12.70
Total cost: $111

Verdict

Pick GPT-6 Luna (High)

Granite 4.2 30B vs GPT-6 Luna (High): 61.4% less intelligence, 131.6% more cost to run the AA benchmark, and 278.2% slower end-to-end.

Metric	GPT-6 Luna (High)	Granite 4.2 30B	Difference
Intelligence (higher is better)	32.9	12.7	−61.4% Granite 4.2 30B is 61.4% less intelligent
Total AA cost (lower is better)	$47.85	$110.83	+131.6% Granite 4.2 30B is 2.3× more expensive
End-to-end time (lower is better)	16.20s	61.27s	+278.2% Granite 4.2 30B is 278.2% slower
Price per 1M tokens (in / out)	$0.10 / $0.50	$0.16 / $0.65
Input modalities	Text, Image	Text

Open this matchup in the interactive picker GPT-6 Luna (High): what beats it Granite 4.2 30B: what beats it

Today's Pareto frontier

Against the frontier

GPT-6 Luna (High) is on today's frontier: nothing is both smarter and cheaper.
Granite 4.2 30B is off the frontier: at the same or lower cost, MiMo-V2.6-Flash scores 37.90 for $110.

GPT-6 Luna (High)Granite 4.2 30BToday's Pareto frontierOpen-weights frontierEvery other model

Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-6-luna-high/granite-4-2-30b · Markdown: /api/v1/compare/gpt-6-luna-high/granite-4-2-30b?format=md · llms.txt · agent skill