Gemini 2.5 Flash Lite Preview 09-2025vsGemini 3.1 Flash Lite Preview
Gemini 2.5 Flash Lite Preview 09-2025 is cheaper than Gemini 3.1 Flash Lite Preview at $0.1/M vs $0.25/M input tokens.
| Spec | Gemini 2.5 Flash Lite Preview 09-2025 | Gemini 3.1 Flash Lite Preview |
|---|---|---|
| Input price | $0.1/M tokens | $0.25/M tokens |
| Output price | $0.4/M tokens | $1.5/M tokens |
| Context window | 1.0M tokens | 1.0M tokens |
| Released | Sep 2025 | Mar 2026 |
Our Verdict
Gemini 2.5 Flash Lite Preview 09-2025
Gemini 3.1 Flash Lite Preview
Not enough votes to call it. On the specs, nothing separates them.
Gemini 2.5 Flash Lite Preview 09-2025 costs 3.8x less per token.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Flash Lite Preview 09-2025
Input
$0.10
2.5× cheaper
Output
$0.40
3.8× cheaper
Gemini 3.1 Flash Lite Preview
Input
$0.25
Output
$1.50
Gemini 2.5 Flash Lite Preview 09-2025 is cheaper on both — 2.5× input, 3.8× output
Writing DNA
Style Comparison
Similarity
64%
Gemini 2.5 Flash Lite Preview 09-2025 uses 1.6x more transitions
Gemini 2.5 Flash Lite Preview 09-2025
Gemini 3.1 Flash Lite Preview
52%Vocabulary56%
19wSentence Length18w
0.35Hedging0.28
6.3Bold5.4
2.8Lists3.9
0.00Emoji0.00
0.74Headings0.95
0.12Transitions0.07
Based on 22 + 23 text responses
Research
What we learned reading every model
FAQ
Common questions
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