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GPTvsGemini

GPT 4o Mini 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 4o Mini

Fast / Budget

Gemini 2.5 Flash-Lite

Fast / Budget
Input $/MTok
$0.15
$0.10
Output $/MTok
$0.60
$0.40
Cache discount
50% off
90% off
Context
128K
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
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 4o Mini
Gemini 2.5 Flash-Lite

Guidance

When to use GPT 4o Mini vs Gemini 2.5 Flash-Lite

Choose GPT 4o Mini when...

  • Similar performance; consider provider preference or ecosystem fit.

Choose Gemini 2.5 Flash-Lite when...

  • -Cost matters: 33% cheaper on input tokens
  • -You need a larger context window (1,048.576K vs 128K)

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 4o Mini
Gemini 2.5 Flash-Lite
100K tokens
$0.03
$0.02Cheaper
1M tokens
$0.28
$0.19Cheaper
10M tokens
$2.85
$1.90Cheaper

FAQ

When should I use GPT 4o Mini instead of Gemini 2.5 Flash-Lite?

GPT 4o Mini 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 4o Mini?

Yes. Gemini 2.5 Flash-Lite input costs $0.10/MTok vs $0.15/MTok for GPT 4o Mini, saving 33% on input.

What are the context window sizes for GPT 4o Mini and Gemini 2.5 Flash-Lite?

GPT 4o Mini has a 128K token context window. Gemini 2.5 Flash-Lite has a 1,048.576K token context window.

Go deeper on either model

Per-call cost calculators, provider lineups, and price history for both models on this page.

GPT 4o Mini pricing & benchmarks

$0.15 / $0.60 per MTok

GPT 4o Mini cost calculator

All GPT models

GPT 4o Mini pricing history

Gemini 2.5 Flash-Lite pricing & benchmarks

$0.10 / $0.40 per MTok

Gemini 2.5 Flash-Lite cost calculator

All Gemini models

Gemini 2.5 Flash-Lite pricing history

Other comparisons

How GPT 4o Mini and Gemini 2.5 Flash-Lite stack up against the rest of the field.

GPT 4o Mini vs Claude Opus 4.8

GPT 4o Mini vs Claude Sonnet 4.6

GPT 4o Mini vs Claude Haiku 4.5

Gemini 2.5 Flash-Lite vs Claude Opus 4.8

Gemini 2.5 Flash-Lite vs Claude Sonnet 4.6

Gemini 2.5 Flash-Lite vs Claude Haiku 4.5

Track your real costs

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

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