GeminivsGrok

Gemini 3.5 Flash-Lite vs Grok 4.5

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

Grok 4.5

Flagship
Input $/MTok
$0.30
$2.00
Output $/MTok
$2.50
$6.00
Cache discount
90% off
85% off
Context
1.0M
500K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
58
vs
61
Code Review
52
vs
0
Summarization
67
vs
71
Q&A
78
vs
0
Extraction
69
vs
72
Reasoning
60
vs
87
Classification
85
vs
0
Creative Writing
67
vs
74
Gemini 3.5 Flash-Lite
Grok 4.5

Guidance

When to use Gemini 3.5 Flash-Lite vs Grok 4.5

Choose Gemini 3.5 Flash-Lite when...

  • -Cost matters: 85% cheaper on input tokens
  • -You need a larger context window (1.0M vs 500K)

Choose Grok 4.5 when...

  • -You need strong reasoning (confidence 87 vs 60)
  • -You need strong creative writing (confidence 74 vs 67)
  • -You need strong extraction (confidence 72 vs 69)
  • -You need strong summarization (confidence 71 vs 67)

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Gemini 3.5 Flash-Lite
Grok 4.5
100K tokens
$0.10Cheaper
$0.32
1M tokens
$0.96Cheaper
$6.40
10M tokens
$9.60Cheaper
$64.00

FAQ

When should I use Gemini 3.5 Flash-Lite instead of Grok 4.5?

Gemini 3.5 Flash-Lite and Grok 4.5 perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is Grok 4.5 cheaper than Gemini 3.5 Flash-Lite?

Grok 4.5 input costs $2.00/MTok, which is 567% more than Gemini 3.5 Flash-Lite at $0.30/MTok.

What are the context window sizes for Gemini 3.5 Flash-Lite and Grok 4.5?

Gemini 3.5 Flash-Lite has a 1.0M token context window. Grok 4.5 has a 500K token context window.

Track your real costs

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