GeminivsGemini

Gemini 3.5 Flash vs Gemini 3 Flash

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

Pricing

Side-by-side pricing

Gemini 3.5 Flash

Fast / Budget

Gemini 3 Flash

Fast / Budget
Input $/MTok
$1.50
$0.50
Output $/MTok
$9.00
$3.00
Cache discount
90% off
90% off
Context
1.0M
1.0M

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
61
vs
65
Code Review
65
vs
62
Summarization
76
vs
83
Q&A
84
vs
82
Extraction
73
vs
86
Reasoning
82
vs
58
Classification
92
vs
88
Creative Writing
75
vs
52
Gemini 3.5 Flash
Gemini 3 Flash

Guidance

When to use Gemini 3.5 Flash vs Gemini 3 Flash

Choose Gemini 3.5 Flash when...

  • -You need strong classification (confidence 92 vs 88)
  • -You need strong q&a (confidence 84 vs 82)
  • -You need strong reasoning (confidence 82 vs 58)
  • -You need strong creative writing (confidence 75 vs 52)

Choose Gemini 3 Flash when...

  • -You need strong extraction (confidence 86 vs 73)
  • -You need strong summarization (confidence 83 vs 76)
  • -You need strong code generation (confidence 65 vs 61)
  • -Cost matters: 67% cheaper on input tokens

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Gemini 3.5 Flash
Gemini 3 Flash
100K tokens
$0.38
$0.13Cheaper
1M tokens
$3.75
$1.25Cheaper
10M tokens
$37.50
$12.50Cheaper

FAQ

When should I use Gemini 3.5 Flash instead of Gemini 3 Flash?

Gemini 3.5 Flash outperforms Gemini 3 Flash for Code Review, Q&A, Reasoning. It costs $1.50/$9.00 per million tokens (input/output).

Is Gemini 3 Flash cheaper than Gemini 3.5 Flash?

Yes. Gemini 3 Flash input costs $0.50/MTok vs $1.50/MTok for Gemini 3.5 Flash, saving 67% on input.

What are the context window sizes for Gemini 3.5 Flash and Gemini 3 Flash?

Gemini 3.5 Flash has a 1.0M token context window. Gemini 3 Flash has a 1.0M token context window.

Track your real costs

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