Home / Compare / Gemma 4 31B vs Grok 4.7

Gemma 4 31B vs Grok 4.7

For a typical chat reply (2,000 tokens in, 400 out), Grok 4.7 costs 16× as much as Gemma 4 31B: $5.12 against $0.316 per 1,000 requests at list price on 2026-09-28.

Gemma 4 31BGrok 4.7
Input, per 1M tokens$0.09$1.60
Output, per 1M tokens$0.34$4.80
Context window262K500K
Classification or routing (600 tokens in, 10 out), per 1,000$0.0574$1.01
Chat reply (2,000 in, 400 out), per 1,000$0.316$5.12
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$0.89$15.20
Confidence signalyesyes
Tool callingyesyes
BANKING77, correct of 400304not measured

Which one should carry your traffic?

If Gemma 4 31B answers your requests as well as Grok 4.7, moving that traffic saves 94% on chat-shaped requests. Averages cannot tell you whether it does for your requests. Gemma 4 31B exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Grok 4.7.

Gemma 4 31B profile · Grok 4.7 profile · Measure it on your traffic