GPT-5.4 NanovsMistral Large 2
GPT-5.4 Nano is cheaper than Mistral Large 2 at $0.2/M vs $8/M input tokens.
| Spec | GPT-5.4 Nano | Mistral Large 2 |
|---|---|---|
| Input price | $0.2/M tokens | $8/M tokens |
| Output price | $1.25/M tokens | $24/M tokens |
| Context window | 400K tokens | 128K tokens |
| Weights | Closed | Open |
| Free API (OpenRouter) | No | No |
| Released | Mar 2026 | Jul 2024 |
Our Verdict
GPT-5.4 Nano
Mistral Large 2
Not enough votes to call it. On the specs, nothing separates them.
GPT-5.4 Nano costs 19x less per token.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.4 Nano
Input
$0.20
40× cheaper
Output
$1.25
19× cheaper
Mistral Large 2
Input
$8.00
Output
$24.00
GPT-5.4 Nano is cheaper on both: 40× input, 19× output.
Where to run it
3 hosts
Mistral Large 21 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
85%
Mistral Large 2 uses 79.6x more emoji
GPT-5.4 Nano
Mistral Large 2
51%Vocabulary43%
21wSentence Length21w
0.58Hedging0.39
7.1Bold14.4
5.5Lists7.4
0.01Emoji0.80
1.39Headings1.41
0.05Transitions0.01
Based on 23 + 10 text responses
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