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
$2.00
$2.00
Output $/MTok
$12.00
$12.00
Cache discount
90% off
90% off
Context
922K
1.0M
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
64
vs
57
Code Review
84
vs
84
Summarization
64
vs
80
Q&A
92
vs
87
Extraction
75
vs
75
Reasoning
91
vs
84
Classification
89
vs
86
Creative Writing
67
vs
77
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 q&a (confidence 92 vs 87)
- -You need strong reasoning (confidence 91 vs 84)
- -You need strong classification (confidence 89 vs 86)
- -You need strong code generation (confidence 64 vs 57)
Choose Gemini 3.1 Pro when...
- -You need strong summarization (confidence 80 vs 64)
- -You need strong creative writing (confidence 77 vs 67)
- -You need a larger context window (1.0M vs 922K)
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
$0.50
$0.50
1M tokens
$8.20
$8.20
10M tokens
$82.00
$82.00
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 Code Generation, Q&A, Reasoning. It costs $2.00/$12.00 per million tokens (input/output).
Is Gemini 3.1 Pro cheaper than GPT 5.6 Terra?
Both models have the same input pricing at $2.00/MTok. Compare output pricing: $12.00 vs $12.00/MTok.
What are the context window sizes for GPT 5.6 Terra and Gemini 3.1 Pro?
GPT 5.6 Terra has a 922K token context window. Gemini 3.1 Pro has a 1.0M token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How GPT 5.6 Terra and Gemini 3.1 Pro stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.