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Grok 4.7 vs GPT-5.5: cost compared

Across 8 common app types, Grok 4.7 is on average 3.3× cheaper. Grok 4.7 is cheaper in 8 of 8 scenarios. Quality index: Grok 4.7 46.4 vs GPT-5.5 38.4.

Price (per 1M tokens)Grok 4.7GPT-5.5
Input$2$5
Output$6$30
Cached input$0.5$0.5
Context window500,0001,050,000
Batch pricing—yes

Monthly cost by app type

AppGrok 4.7GPT-5.5
AI chatbot$1,530$6,053tweak →
RAG app$1,434$4,458tweak →
AI coding agent$43,402$117,209tweak →
Discord bot$1,994$6,584tweak →
image / vision app$212$725tweak →
customer support agent$5,398$14,805tweak →
document summarizer$434$1,326tweak →
AI writing tool$1,083$4,573tweak →

Prices only tell half the story. If Grok 4.7 is good enough for most of your traffic, route easy requests there and save the other model for the hard ones; the calculator's "cheapest smart mix" estimates that split.

Compare them in the calculator →

Other comparisons

Prices: OpenRouter list prices (USD per 1M tokens), updated 2026-10-15. Estimates only; a month is 30 days. See how the math works.