Gemini 2.5 Flash Preview vs Llama 3.1 405B
Compare Gemini 2.5 Flash Preview by Google AI against Llama 3.1 405B by Meta AI, context windows of 1.0M vs 128K, tested across 6 shared challenges.
Our Verdict
Gemini 2.5 Flash Preview
Llama 3.1 405B
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Gemini 2.5 Flash Preview is 5.2x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Flash Preview
Input
$0.15
18× cheaper
Output
$0.60
5.2× cheaper
Llama 3.1 405B
Input
$2.70
Output
$3.10
Gemini 2.5 Flash Preview is cheaper on both — 18× input, 5.2× output
Writing DNA
Style Comparison
Similarity
71%
Gemini 2.5 Flash Preview uses 407.5x more bold
Gemini 2.5 Flash Preview
Llama 3.1 405B
51%Vocabulary56%
15wSentence Length15w
0.70Hedging0.41
4.1Bold0.0
3.3Lists1.9
0.00Emoji0.03
0.09Headings0.00
0.24Transitions0.16
Based on 12 + 5 text responses
Research
What we learned reading every model
FAQ
