GeminivsDeepSeek

Gemini 3 Flash vs DeepSeek V4 Pro

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 V4 Pro

Flagship
Input $/MTok
$0.50
$0.66
Output $/MTok
$3.00
$1.98
Cache discount
90% off
97% off
Context
1.0M
1M

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 V4 Pro

Guidance

When to use Gemini 3 Flash vs DeepSeek V4 Pro

Choose Gemini 3 Flash when...

  • -Cost matters: 24% cheaper on input tokens
  • -You need a larger context window (1.0M vs 1M)

Choose DeepSeek V4 Pro when...

  • Similar performance; consider provider preference or ecosystem fit.

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Gemini 3 Flash
DeepSeek V4 Pro
100K tokens
$0.13
$0.11Cheaper
1M tokens
$1.25
$1.06Cheaper
10M tokens
$12.50
$10.56Cheaper

FAQ

When should I use Gemini 3 Flash instead of DeepSeek V4 Pro?

Gemini 3 Flash and DeepSeek V4 Pro perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is DeepSeek V4 Pro cheaper than Gemini 3 Flash?

DeepSeek V4 Pro input costs $0.66/MTok, which is 32% more than Gemini 3 Flash at $0.50/MTok.

What are the context window sizes for Gemini 3 Flash and DeepSeek V4 Pro?

Gemini 3 Flash has a 1.0M token context window. DeepSeek V4 Pro has a 1M token context window.

Track your real costs

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