tokevenGPTvsGemini
GPT 5.4 vs Gemini 3 Flash
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
GPT 5.4
Mid-tierGemini 3 Flash
Fast / BudgetInput $/MTok
$2.50
$0.50
Output $/MTok
$15.00
$3.00
Cache discount
90% off
90% off
Context
1.1M
1.0M
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
63
vs
65
Code Review
82
vs
62
Summarization
67
vs
83
Q&A
91
vs
82
Extraction
76
vs
86
Reasoning
88
vs
58
Classification
88
vs
88
Creative Writing
79
vs
52
GPT 5.4
Gemini 3 Flash
Guidance
When to use GPT 5.4 vs Gemini 3 Flash
Choose GPT 5.4 when...
- -You need strong q&a (confidence 91 vs 82)
- -You need strong reasoning (confidence 88 vs 58)
- -You need strong code review (confidence 82 vs 62)
- -You need strong creative writing (confidence 79 vs 52)
- -You need a larger context window (1.1M vs 1.0M)
Choose Gemini 3 Flash when...
- -You need strong extraction (confidence 86 vs 76)
- -You need strong summarization (confidence 83 vs 67)
- -You need strong code generation (confidence 65 vs 63)
- -Cost matters: 80% cheaper on input tokens
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.4
Gemini 3 Flash
100K tokens
$0.63
$0.13Cheaper
1M tokens
$10.25
$1.25Cheaper
10M tokens
$102.50
$12.50Cheaper
FAQ
When should I use GPT 5.4 instead of Gemini 3 Flash?
GPT 5.4 outperforms Gemini 3 Flash for Code Review, Q&A, Reasoning. It costs $2.50/$15.00 per million tokens (input/output).
Is Gemini 3 Flash cheaper than GPT 5.4?
Yes. Gemini 3 Flash input costs $0.50/MTok vs $2.50/MTok for GPT 5.4, saving 80% on input.
What are the context window sizes for GPT 5.4 and Gemini 3 Flash?
GPT 5.4 has a 1.1M token context window. Gemini 3 Flash 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 5.4 and Gemini 3 Flash 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.