GPTvsGemini

GPT 5.6 Sol vs Gemini 3.5 Flash

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 3.5 Flash

Fast / Budget
Input $/MTok
$5.00
$1.50
Output $/MTok
$30.00
$9.00
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
68
Code Review
92
vs
65
Summarization
90
vs
85
Q&A
91
vs
84
Extraction
88
vs
90
Reasoning
96
vs
60
Classification
86
vs
92
Creative Writing
92
vs
55
GPT 5.6 Sol
Gemini 3.5 Flash

Guidance

When to use GPT 5.6 Sol vs Gemini 3.5 Flash

Choose GPT 5.6 Sol when...

  • -You need strong reasoning (confidence 96 vs 60)
  • -You need strong code generation (confidence 94 vs 68)
  • -You need strong code review (confidence 92 vs 65)
  • -You need strong creative writing (confidence 92 vs 55)

Choose Gemini 3.5 Flash when...

  • -You need strong classification (confidence 92 vs 86)
  • -You need strong extraction (confidence 90 vs 88)
  • -Cost matters: 70% 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 3.5 Flash
100K tokens
$1.25
$0.38Cheaper
1M tokens
$12.50
$3.75Cheaper
10M tokens
$125.00
$37.50Cheaper

FAQ

When should I use GPT 5.6 Sol instead of Gemini 3.5 Flash?

GPT 5.6 Sol outperforms Gemini 3.5 Flash for Reasoning, Code Generation, Code Review. It costs $5.00/$30.00 per million tokens (input/output).

Is Gemini 3.5 Flash cheaper than GPT 5.6 Sol?

Yes. Gemini 3.5 Flash input costs $1.50/MTok vs $5.00/MTok for GPT 5.6 Sol, saving 70% on input.

What are the context window sizes for GPT 5.6 Sol and Gemini 3.5 Flash?

GPT 5.6 Sol has a 1,000K token context window. Gemini 3.5 Flash 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.