GeminivsGrok

Gemini 3.1 Pro vs Grok Build 0.1

Side-by-side comparison of pricing, task quality, and projected cost at higher scale.

Pricing

Side-by-side pricing

Gemini 3.1 Pro

Mid-tier

Grok Build 0.1

Fast / Budget
Input $/MTok
$2.00
$1.00
Output $/MTok
$12.00
$2.00
Cache discount
90% off
80% off
Context
1,000K
256K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
86
vs
0
Code Review
84
vs
0
Summarization
87
vs
0
Q&A
87
vs
0
Extraction
85
vs
0
Reasoning
90
vs
0
Classification
86
vs
0
Creative Writing
84
vs
0
Gemini 3.1 Pro
Grok Build 0.1

Guidance

When to use Gemini 3.1 Pro vs Grok Build 0.1

Choose Gemini 3.1 Pro when...

  • -You need a larger context window (1,000K vs 256K)
  • Similar performance; consider provider preference or ecosystem fit.

Choose Grok Build 0.1 when...

  • -Cost matters: 50% cheaper on input tokens

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Gemini 3.1 Pro
Grok Build 0.1
100K tokens
$0.50
$0.13Cheaper
1M tokens
$8.20
$2.60Cheaper
10M tokens
$82.00
$26.00Cheaper

FAQ

When should I use Gemini 3.1 Pro instead of Grok Build 0.1?

Gemini 3.1 Pro and Grok Build 0.1 perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is Grok Build 0.1 cheaper than Gemini 3.1 Pro?

Yes. Grok Build 0.1 input costs $1.00/MTok vs $2.00/MTok for Gemini 3.1 Pro, saving 50% on input.

What are the context window sizes for Gemini 3.1 Pro and Grok Build 0.1?

Gemini 3.1 Pro has a 1,000K token context window. Grok Build 0.1 has a 256K token context window.

Track your real costs

Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.