GeminivsDeepSeek

Gemini 3 Flash vs DeepSeek V3

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

Pricing

Side-by-side pricing

Gemini 3 Flash

Fast / Budget

DeepSeek V3

Mid-tier
Input $/MTok
$0.50
$0.27
Output $/MTok
$3.00
$1.10
Cache discount
90% off
74% off
Context
1.0M
164K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
65
vs
0
Code Review
62
vs
0
Summarization
83
vs
0
Q&A
82
vs
0
Extraction
86
vs
0
Reasoning
58
vs
0
Classification
88
vs
0
Creative Writing
52
vs
0
Gemini 3 Flash
DeepSeek V3

Guidance

When to use Gemini 3 Flash vs DeepSeek V3

Choose Gemini 3 Flash when...

  • -You need a larger context window (1.0M vs 164K)
  • Similar performance; consider provider preference or ecosystem fit.

Choose DeepSeek V3 when...

  • -Cost matters: 46% cheaper on input tokens

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Gemini 3 Flash
DeepSeek V3
100K tokens
$0.13
$0.05Cheaper
1M tokens
$1.25
$0.52Cheaper
10M tokens
$12.50
$5.19Cheaper

FAQ

When should I use Gemini 3 Flash instead of DeepSeek V3?

Gemini 3 Flash and DeepSeek V3 perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is DeepSeek V3 cheaper than Gemini 3 Flash?

Yes. DeepSeek V3 input costs $0.27/MTok vs $0.50/MTok for Gemini 3 Flash, saving 46% on input.

What are the context window sizes for Gemini 3 Flash and DeepSeek V3?

Gemini 3 Flash has a 1.0M token context window. DeepSeek V3 has a 164K token context window.

Track your real costs

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