GPTvsGemini

GPT 5.6 Sol vs Gemini 3.1 Pro

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

Pricing

Side-by-side pricing

GPT 5.6 Sol

Flagship

Gemini 3.1 Pro

Mid-tier
Input $/MTok
$5.00
$2.00
Output $/MTok
$30.00
$12.00
Cache discount
90% off
75% off
Context
1,000K
1,000K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
94
vs
86
Code Review
92
vs
84
Summarization
90
vs
87
Q&A
91
vs
87
Extraction
88
vs
85
Reasoning
96
vs
90
Classification
86
vs
86
Creative Writing
92
vs
84
GPT 5.6 Sol
Gemini 3.1 Pro

Guidance

When to use GPT 5.6 Sol vs Gemini 3.1 Pro

Choose GPT 5.6 Sol when...

  • -You need strong reasoning (confidence 96 vs 90)
  • -You need strong code generation (confidence 94 vs 86)
  • -You need strong code review (confidence 92 vs 84)
  • -You need strong creative writing (confidence 92 vs 84)

Choose Gemini 3.1 Pro when...

  • -Cost matters: 60% cheaper on input tokens

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.6 Sol
Gemini 3.1 Pro
100K tokens
$1.25
$0.50Cheaper
1M tokens
$12.50
$5.00Cheaper
10M tokens
$125.00
$50.00Cheaper

FAQ

When should I use GPT 5.6 Sol instead of Gemini 3.1 Pro?

GPT 5.6 Sol outperforms Gemini 3.1 Pro for Reasoning, Code Generation, Code Review. It costs $5.00/$30.00 per million tokens (input/output).

Is Gemini 3.1 Pro cheaper than GPT 5.6 Sol?

Yes. Gemini 3.1 Pro input costs $2.00/MTok vs $5.00/MTok for GPT 5.6 Sol, saving 60% on input.

What are the context window sizes for GPT 5.6 Sol and Gemini 3.1 Pro?

GPT 5.6 Sol has a 1,000K token context window. Gemini 3.1 Pro has a 1,000K token context window.

Track your real costs

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