Claude Opus 4vsMistral Nemo
Mistral Nemo is cheaper than Claude Opus 4 at $0.03/M vs $15/M input tokens.
| Spec | Claude Opus 4 | Mistral Nemo |
|---|---|---|
| Input price | $15/M tokens | $0.03/M tokens |
| Output price | $75/M tokens | $0.07/M tokens |
| Context window | 200K tokens | 128K tokens |
| Parameters | Not disclosed | 12B |
| Weights | Closed | Open |
| Free API (OpenRouter) | No | No |
| Released | May 2025 | Jul 2024 |
Our Verdict
Claude Opus 4
Mistral NemoRunner-up
Not enough votes to call it. On the specs, Claude Opus 4 has the edge: bigger model tier, newer, bigger context window, major provider backing.
Mistral Nemo costs 1071x less per token.
Slight edge
API pricing
Cost per 1M tokens
Claude Opus 4
Input
$15.00
Output
$75.00
Mistral Nemo
Input
$0.03
500× cheaper
Output
$0.07
1071× cheaper
Mistral Nemo is cheaper on both: 500× input, 1071× output.
Where to run it
5 hosts, cheapest first
Claude Opus 41 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
50%
Claude Opus 4 uses 118.4x more emoji
Claude Opus 4
Mistral Nemo
65%Vocabulary53%
57wSentence Length17w
0.67Hedging0.72
3.8Bold2.9
6.8Lists5.1
1.18Emoji0.00
1.42Headings0.00
0.22Transitions0.14
Based on 27 + 27 text responses
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