Gemini 2.5 Flash PreviewvsGemini 2.5 Flash Preview 09-2025
Gemini 2.5 Flash Preview is cheaper than Gemini 2.5 Flash Preview 09-2025 at $0.15/M vs $0.3/M input tokens.
| Spec | Gemini 2.5 Flash Preview | Gemini 2.5 Flash Preview 09-2025 |
|---|---|---|
| Input price | $0.15/M tokens | $0.3/M tokens |
| Output price | $0.6/M tokens | $2.5/M tokens |
| Context window | 1.0M tokens | 1.0M tokens |
| Released | Apr 2025 | Sep 2025 |
Our Verdict
Gemini 2.5 Flash Preview 09-2025
Gemini 2.5 Flash PreviewRunner-up
Not enough votes to call it. On the specs, Gemini 2.5 Flash Preview 09-2025 has the edge: bigger model tier, newer.
Gemini 2.5 Flash Preview costs 4.2x less per token.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Flash Preview
Input
$0.15
2.0× cheaper
Output
$0.60
4.2× cheaper
Gemini 2.5 Flash Preview 09-2025
Input
$0.30
Output
$2.50
Gemini 2.5 Flash Preview is cheaper on both — 2.0× input, 4.2× output
Writing DNA
Style Comparison
Similarity
40%
Gemini 2.5 Flash Preview 09-2025 uses 13.5x more emoji
Gemini 2.5 Flash Preview
Gemini 2.5 Flash Preview 09-2025
51%Vocabulary53%
15wSentence Length19w
0.70Hedging0.30
4.1Bold5.8
3.3Lists3.1
0.00Emoji0.14
0.09Headings0.93
0.24Transitions0.22
Based on 12 + 22 text responses
Research
What we learned reading every model
FAQ
Common questions
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