Home / Compare / Gemini 3.1 Pro Preview vs Grok 4.7

Gemini 3.1 Pro Preview vs Grok 4.7

For a typical chat reply (2,000 tokens in, 400 out), Gemini 3.1 Pro Preview costs 1.7× as much as Grok 4.7: $8.80 against $5.12 per 1,000 requests at list price on 2026-09-28.

Gemini 3.1 Pro PreviewGrok 4.7
Input, per 1M tokens$2.00$1.60
Output, per 1M tokens$12.00$4.80
Context window1.05M500K
Classification or routing (600 tokens in, 10 out), per 1,000$1.32$1.01
Chat reply (2,000 in, 400 out), per 1,000$8.80$5.12
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$22.00$15.20
Confidence signalnoyes
Tool callingyesyes

Which one should carry your traffic?

If Grok 4.7 answers your requests as well as Gemini 3.1 Pro Preview, moving that traffic saves 42% on chat-shaped requests. Averages cannot tell you whether it does for your requests. Grok 4.7 exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to Gemini 3.1 Pro Preview.

Gemini 3.1 Pro Preview profile · Grok 4.7 profile · Measure it on your traffic