Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Gemini 3.1 Pro Custom Tools
Mid-tierGrok Build 0.1
Fast / BudgetQuality
Guidance
At scale
Gemini 3.1 Pro Custom Tools and Grok Build 0.1 perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Yes. Grok Build 0.1 input costs $1.00/MTok vs $2.00/MTok for Gemini 3.1 Pro Custom Tools, saving 50% on input.
Gemini 3.1 Pro Custom Tools has a 1,048.576K token context window. Grok Build 0.1 has a 256K token context window.
Per-call cost calculators, provider lineups, and price history for both models on this page.
Gemini 3.1 Pro Custom Tools pricing & benchmarks
$2.00 / $12.00 per MTok
Gemini 3.1 Pro Custom Tools cost calculator
All Gemini models
Gemini 3.1 Pro Custom Tools pricing history
Grok Build 0.1 pricing & benchmarks
$1.00 / $2.00 per MTok
Grok Build 0.1 cost calculator
All Grok models
Grok Build 0.1 pricing history
How Gemini 3.1 Pro Custom Tools and Grok Build 0.1 stack up against the rest of the field.
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.