GPTvsGemini

GPT 3.5 Turbo (0125) vs Gemini 3.5 Flash-Lite

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

Pricing

Side-by-side pricing

GPT 3.5 Turbo (0125)

Fast / Budget

Gemini 3.5 Flash-Lite

Fast / Budget
Input $/MTok
$0.50
$0.30
Output $/MTok
$1.50
$2.50
Cache discount
0% off
90% off
Context
16.385K
1,048.576K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
0
vs
55
Code Review
0
vs
52
Summarization
0
vs
79
Q&A
0
vs
78
Extraction
0
vs
83
Reasoning
0
vs
50
Classification
0
vs
85
Creative Writing
0
vs
45
GPT 3.5 Turbo (0125)
Gemini 3.5 Flash-Lite

Guidance

When to use GPT 3.5 Turbo (0125) vs Gemini 3.5 Flash-Lite

Choose GPT 3.5 Turbo (0125) when...

  • Similar performance; consider provider preference or ecosystem fit.

Choose Gemini 3.5 Flash-Lite when...

  • -Cost matters: 40% cheaper on input tokens
  • -You need a larger context window (1,048.576K vs 16.385K)

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 3.5 Turbo (0125)
Gemini 3.5 Flash-Lite
100K tokens
$0.08Cheaper
$0.10
1M tokens
$0.80Cheaper
$0.96
10M tokens
$8.00Cheaper
$9.60

FAQ

When should I use GPT 3.5 Turbo (0125) instead of Gemini 3.5 Flash-Lite?

GPT 3.5 Turbo (0125) and Gemini 3.5 Flash-Lite perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is Gemini 3.5 Flash-Lite cheaper than GPT 3.5 Turbo (0125)?

Yes. Gemini 3.5 Flash-Lite input costs $0.30/MTok vs $0.50/MTok for GPT 3.5 Turbo (0125), saving 40% on input.

What are the context window sizes for GPT 3.5 Turbo (0125) and Gemini 3.5 Flash-Lite?

GPT 3.5 Turbo (0125) has a 16.385K token context window. Gemini 3.5 Flash-Lite has a 1,048.576K token context window.

Track your real costs

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