tokevenGPTvsGemini
GPT 5.2 Pro 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 5.2 Pro
FlagshipGemini 3.1 Pro
Mid-tierInput $/MTok
$21.00
$2.00
Output $/MTok
$168.00
$12.00
Cache discount
0% off
90% off
Context
272K
1,048.576K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
0
vs
86
Code Review
0
vs
84
Summarization
0
vs
87
Q&A
0
vs
87
Extraction
0
vs
85
Reasoning
0
vs
90
Classification
0
vs
86
Creative Writing
0
vs
84
GPT 5.2 Pro
Gemini 3.1 Pro
Guidance
When to use GPT 5.2 Pro vs Gemini 3.1 Pro
Choose GPT 5.2 Pro when...
- Similar performance; consider provider preference or ecosystem fit.
Choose Gemini 3.1 Pro when...
- -Cost matters: 90% cheaper on input tokens
- -You need a larger context window (1,048.576K vs 272K)
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.2 Pro
Gemini 3.1 Pro
100K tokens
$6.51
$0.50Cheaper
1M tokens
$65.10
$8.20Cheaper
10M tokens
$651.00
$82.00Cheaper
FAQ
When should I use GPT 5.2 Pro instead of Gemini 3.1 Pro?
GPT 5.2 Pro and Gemini 3.1 Pro perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Gemini 3.1 Pro cheaper than GPT 5.2 Pro?
Yes. Gemini 3.1 Pro input costs $2.00/MTok vs $21.00/MTok for GPT 5.2 Pro, saving 90% on input.
What are the context window sizes for GPT 5.2 Pro and Gemini 3.1 Pro?
GPT 5.2 Pro has a 272K token context window. Gemini 3.1 Pro has a 1,048.576K 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 5.2 Pro 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.