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  5. Claude 3.7 SonnetvsLlama 3.1 70B (Instruct)
Updated Feb 2025

Claude 3.7 SonnetvsLlama 3.1 70B (Instruct)

Llama 3.1 70B (Instruct) is cheaper than Claude 3.7 Sonnet at $0.59/M vs $3/M input tokens.

Claude 3.7 Sonnet and Llama 3.1 70B (Instruct) compared across 52 shared prompts
SpecClaude 3.7 SonnetLlama 3.1 70B (Instruct)
Input price$3/M tokens$0.59/M tokens
Output price$15/M tokens$0.79/M tokens
Context window200K tokens128K tokens
ParametersNot disclosed70B
Weights—Open
Free API (OpenRouter)NoNo
ReleasedFeb 2025Jul 2024
MMLU80.3%86.0%
Our Verdict
Claude 3.7 Sonnet
Claude 3.7 Sonnet
Llama 3.1 70B (Instruct)
Llama 3.1 70B (Instruct)Runner-up

Not enough votes to call it. On the specs, Claude 3.7 Sonnet has the edge: newer, bigger context window.

Llama 3.1 70B (Instruct) costs 19x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

Claude 3.7 Sonnet
Input
$3.00
Output
$15.00
Llama 3.1 70B (Instruct)
Input
$0.59
5.1× cheaper
Output
$0.79
19× cheaper

Llama 3.1 70B (Instruct) is cheaper on both: 5.1× input, 19× output.

Where to run it

2 hosts, cheapest first

Claude 3.7 Sonnet

No hosts listed on OpenRouter.

Llama 3.1 70B (Instruct)2 hosts
HostInOutContextUptime
DDeepInfrafp8$0.40 in·$0.40 out·131k·99.9% upAmazon Bedrock$0.72 in·$0.72 out·131k·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 13 Sep 2026.

Writing DNA

Style Comparison

Similarity
49%

Claude 3.7 Sonnet uses 178.0x more headings

Claude 3.7 Sonnet
Llama 3.1 70B (Instruct)
61%Vocabulary51%
33wSentence Length21w
0.83Hedging0.55
2.2Bold3.0
4.9Lists4.0
0.00Emoji0.00
1.78Headings0.00
0.16Transitions0.06
Based on 26 + 27 text responses
Research

What we learned reading every model

FAQ

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