Gemini 3.8 FlashvsGPT-5 Nano
Gemini 3.8 Flash is the newer model, released after GPT-5 Nano.
| Spec | Gemini 3.8 Flash | GPT-5 Nano |
|---|---|---|
| Input price | $0.75/M tokens | — |
| Output price | $3.75/M tokens | — |
| Context window | 1.0M tokens | — |
| Weights | Closed | Closed |
| Free API (OpenRouter) | No | No |
| Released | Sep 2026 | Aug 2025 |
Our Verdict
Gemini 3.8 Flash
GPT-5 NanoRunner-up
Not enough votes to call it. On the specs, Gemini 3.8 Flash has the edge: bigger model tier, newer, bigger context window.
Too close to call
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
Gemini 3.8 Flash
Input
$0.75
Output
$3.75
GPT-5 Nano
Input
—
Output
—
Where to run it
4 hosts
Gemini 3.8 Flash2 hosts
Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.
Writing DNA
Style Comparison
Similarity
45%
Gemini 3.8 Flash uses 402.6x more bold
Gemini 3.8 Flash
GPT-5 Nano
63%Vocabulary60%
20wSentence Length25w
0.17Hedging0.26
4.0Bold0.0
2.4Lists4.4
0.01Emoji0.00
0.84Headings0.00
0.06Transitions0.03
Based on 27 + 20 text responses
Research
What we learned reading every model
FAQ
Common questions
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