tokevenGPTvsGemini
GPT 4 vs Gemini 2.5 Flash-Lite
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 4
FlagshipGemini 2.5 Flash-Lite
Fast / BudgetInput $/MTok
$30.00
$0.10
Output $/MTok
$60.00
$0.40
Cache discount
0% off
90% off
Context
8K
1.0M
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
0
vs
0
Code Review
0
vs
0
Summarization
0
vs
0
Q&A
0
vs
0
Extraction
0
vs
0
Reasoning
0
vs
0
Classification
0
vs
0
Creative Writing
0
vs
0
GPT 4
Gemini 2.5 Flash-Lite
Guidance
When to use GPT 4 vs Gemini 2.5 Flash-Lite
Choose GPT 4 when...
- Similar performance; consider provider preference or ecosystem fit.
Choose Gemini 2.5 Flash-Lite when...
- -Cost matters: 100% cheaper on input tokens
- -You need a larger context window (1.0M vs 8K)
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 4
Gemini 2.5 Flash-Lite
100K tokens
$3.90
$0.02Cheaper
1M tokens
$39.00
$0.19Cheaper
10M tokens
$390.00
$1.90Cheaper
FAQ
When should I use GPT 4 instead of Gemini 2.5 Flash-Lite?
GPT 4 and Gemini 2.5 Flash-Lite perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Gemini 2.5 Flash-Lite cheaper than GPT 4?
Yes. Gemini 2.5 Flash-Lite input costs $0.10/MTok vs $30.00/MTok for GPT 4, saving 100% on input.
What are the context window sizes for GPT 4 and Gemini 2.5 Flash-Lite?
GPT 4 has a 8K token context window. Gemini 2.5 Flash-Lite has a 1.0M token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How GPT 4 and Gemini 2.5 Flash-Lite stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.