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GPTvsGemini

GPT 5.4 Mini vs Gemini 3.1 Flash-Lite

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

Pricing

Side-by-side pricing

GPT 5.4 Mini

Fast / Budget

Gemini 3.1 Flash-Lite

Fast / Budget
Input $/MTok
$0.75
$0.25
Output $/MTok
$4.50
$1.50
Cache discount
90% off
90% off
Context
272K
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 5.4 Mini
Gemini 3.1 Flash-Lite

Guidance

When to use GPT 5.4 Mini vs Gemini 3.1 Flash-Lite

Choose GPT 5.4 Mini when...

  • Similar performance; consider provider preference or ecosystem fit.

Choose Gemini 3.1 Flash-Lite when...

  • -Cost matters: 67% cheaper on input tokens
  • -You need a larger context window (1,048.576K vs 272K)

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.4 Mini
Gemini 3.1 Flash-Lite
100K tokens
$0.19
$0.06Cheaper
1M tokens
$1.87
$0.63Cheaper
10M tokens
$18.75
$6.25Cheaper

FAQ

When should I use GPT 5.4 Mini instead of Gemini 3.1 Flash-Lite?

GPT 5.4 Mini and Gemini 3.1 Flash-Lite perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is Gemini 3.1 Flash-Lite cheaper than GPT 5.4 Mini?

Yes. Gemini 3.1 Flash-Lite input costs $0.25/MTok vs $0.75/MTok for GPT 5.4 Mini, saving 67% on input.

What are the context window sizes for GPT 5.4 Mini and Gemini 3.1 Flash-Lite?

GPT 5.4 Mini has a 272K token context window. Gemini 3.1 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 5.4 Mini pricing & benchmarks

$0.75 / $4.50 per MTok

GPT 5.4 Mini cost calculator

All GPT models

GPT 5.4 Mini pricing history

Gemini 3.1 Flash-Lite pricing & benchmarks

$0.25 / $1.50 per MTok

Gemini 3.1 Flash-Lite cost calculator

All Gemini models

Gemini 3.1 Flash-Lite pricing history

Other comparisons

How GPT 5.4 Mini and Gemini 3.1 Flash-Lite stack up against the rest of the field.

GPT 5.4 Mini vs Claude Opus 4.8

GPT 5.4 Mini vs Claude Sonnet 4.6

GPT 5.4 Mini vs Claude Haiku 4.5

Gemini 3.1 Flash-Lite vs Claude Opus 4.8

Gemini 3.1 Flash-Lite vs Claude Sonnet 4.6

Gemini 3.1 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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