Gemini 3.8 FlashvsGPT-5 Mini
GPT-5 Mini is cheaper than Gemini 3.8 Flash at $0.25/M vs $0.75/M input tokens.
| Spec | Gemini 3.8 Flash | GPT-5 Mini |
|---|---|---|
| Input price | $0.75/M tokens | $0.25/M tokens |
| Output price | $3.75/M tokens | $2/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 MiniRunner-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 Mini
Input
$0.25
3.0× cheaper
Output
$2.00
1.9× cheaper
GPT-5 Mini is cheaper on both: 3.0× input, 1.9× output.
Where to run it
4 hosts, cheapest first
Gemini 3.8 Flash2 hosts
Per million tokens. Prices and uptime via OpenRouter, checked 11 Sep 2026.
Writing DNA
Style Comparison
Similarity
56%
Gemini 3.8 Flash uses 402.6x more bold
Gemini 3.8 Flash
GPT-5 Mini
63%Vocabulary62%
20wSentence Length22w
0.17Hedging0.21
4.0Bold0.0
2.4Lists3.8
0.01Emoji0.00
0.84Headings0.00
0.06Transitions0.04
Based on 27 + 21 text responses
Research
What we learned reading every model
FAQ
Common questions
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