GeminivsDeepSeek

Gemini 3.5 Flash-Lite vs DeepSeek R1

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

Pricing

Side-by-side pricing

Gemini 3.5 Flash-Lite

Fast / Budget

DeepSeek R1

Mid-tier
Input $/MTok
$0.30
$0.55
Output $/MTok
$2.50
$2.19
Cache discount
90% off
75% off
Context
1.0M
128K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
58
vs
0
Code Review
52
vs
0
Summarization
67
vs
0
Q&A
78
vs
0
Extraction
69
vs
0
Reasoning
60
vs
0
Classification
85
vs
0
Creative Writing
67
vs
0
Gemini 3.5 Flash-Lite
DeepSeek R1

Guidance

When to use Gemini 3.5 Flash-Lite vs DeepSeek R1

Choose Gemini 3.5 Flash-Lite when...

  • -Cost matters: 45% cheaper on input tokens
  • -You need a larger context window (1.0M vs 128K)

Choose DeepSeek R1 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 3.5 Flash-Lite
DeepSeek R1
100K tokens
$0.10Cheaper
$0.10
1M tokens
$0.96Cheaper
$1.04
10M tokens
$9.60Cheaper
$10.42

FAQ

When should I use Gemini 3.5 Flash-Lite instead of DeepSeek R1?

Gemini 3.5 Flash-Lite and DeepSeek R1 perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is DeepSeek R1 cheaper than Gemini 3.5 Flash-Lite?

DeepSeek R1 input costs $0.55/MTok, which is 83% more than Gemini 3.5 Flash-Lite at $0.30/MTok.

What are the context window sizes for Gemini 3.5 Flash-Lite and DeepSeek R1?

Gemini 3.5 Flash-Lite has a 1.0M token context window. DeepSeek R1 has a 128K token context window.

Track your real costs

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