Gemini 2.5 Flash Preview 05-20 (thinking)vsGPT-3.5 Turbo
Gemini 2.5 Flash Preview 05-20 (thinking) is cheaper than GPT-3.5 Turbo at $0.15/M vs $1.5/M input tokens.
| Spec | Gemini 2.5 Flash Preview 05-20 (thinking) | GPT-3.5 Turbo |
|---|---|---|
| Input price | $0.15/M tokens | $1.5/M tokens |
| Output price | $3.5/M tokens | $2/M tokens |
| Context window | 1.0M tokens | 16K tokens |
| Released | May 2025 | Mar 2022 |
Our Verdict
Gemini 2.5 Flash Preview 05-20 (thinking)
GPT-3.5 TurboRunner-up
Not enough votes to call it. On the specs, Gemini 2.5 Flash Preview 05-20 (thinking) has the edge: newer, bigger context window.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Flash Preview 05-20 (thinking)
Input
$0.15
10× cheaper
Output
$3.50
GPT-3.5 Turbo
Input
$1.50
Output
$2.00
1.8× cheaper
Gemini 2.5 Flash Preview 05-20 (thinking) wins input (10× cheaper)·GPT-3.5 Turbo wins output (1.8× cheaper)
Writing DNA
Style Comparison
Similarity
68%
GPT-3.5 Turbo uses 23.4x more hedging
Gemini 2.5 Flash Preview 05-20 (thinking)
GPT-3.5 Turbo
70%Vocabulary61%
11wSentence Length16w
0.00Hedging0.23
4.2Bold0.0
7.3Lists3.7
0.00Emoji0.00
0.00Headings0.00
0.00Transitions0.38
Based on 3 + 11 text responses
Research
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