tokevenGPTvsGemini
GPT 5.6 Terra 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 Terra
Mid-tierGemini 3.1 Pro
Mid-tierInput $/MTok
$2.50
$2.00
Output $/MTok
$15.00
$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
86
vs
86
Code Review
84
vs
84
Summarization
92
vs
87
Q&A
92
vs
87
Extraction
90
vs
85
Reasoning
82
vs
90
Classification
89
vs
86
Creative Writing
80
vs
84
GPT 5.6 Terra
Gemini 3.1 Pro
Guidance
When to use GPT 5.6 Terra vs Gemini 3.1 Pro
Choose GPT 5.6 Terra when...
- -You need strong summarization (confidence 92 vs 87)
- -You need strong q&a (confidence 92 vs 87)
- -You need strong extraction (confidence 90 vs 85)
- -You need strong classification (confidence 89 vs 86)
Choose Gemini 3.1 Pro when...
- -You need strong reasoning (confidence 90 vs 82)
- -You need strong creative writing (confidence 84 vs 80)
- -Cost matters: 20% 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 Terra
Gemini 3.1 Pro
100K tokens
$0.63
$0.50Cheaper
1M tokens
$6.25
$5.00Cheaper
10M tokens
$62.50
$50.00Cheaper
FAQ
When should I use GPT 5.6 Terra instead of Gemini 3.1 Pro?
GPT 5.6 Terra outperforms Gemini 3.1 Pro for Summarization, Q&A, Extraction. It costs $2.50/$15.00 per million tokens (input/output).
Is Gemini 3.1 Pro cheaper than GPT 5.6 Terra?
Yes. Gemini 3.1 Pro input costs $2.00/MTok vs $2.50/MTok for GPT 5.6 Terra, saving 20% on input.
What are the context window sizes for GPT 5.6 Terra and Gemini 3.1 Pro?
GPT 5.6 Terra 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.