What is the difference between Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15?

Llama 3.1 70B (Instruct) is developed by Meta AI while Qwen3.5 Plus 2026-02-15 is developed by Qwen. Llama 3.1 70B (Instruct) has a 128K token context window vs Qwen3.5 Plus 2026-02-15's 1.0M. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, Llama 3.1 70B (Instruct) or Qwen3.5 Plus 2026-02-15?

It depends on your use case. Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How much does Llama 3.1 70B (Instruct) cost compared to Qwen3.5 Plus 2026-02-15?

Llama 3.1 70B (Instruct) costs $0.59/M input tokens and Qwen3.5 Plus 2026-02-15 costs $0.4/M input tokens. Qwen3.5 Plus 2026-02-15 is $0.19/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15 on Rival?

This page shows a side-by-side comparison of Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

What is the difference between Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15?

Llama 3.1 70B (Instruct) is developed by Meta AI while Qwen3.5 Plus 2026-02-15 is developed by Qwen. Llama 3.1 70B (Instruct) has a 128K token context window vs Qwen3.5 Plus 2026-02-15's 1.0M. You can compare their actual outputs across 51 challenges on Rival to see how they differ in practice.

Which is better, Llama 3.1 70B (Instruct) or Qwen3.5 Plus 2026-02-15?

It depends on your use case. Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 51 challenges so you can judge which fits your needs best.

How much does Llama 3.1 70B (Instruct) cost compared to Qwen3.5 Plus 2026-02-15?

Llama 3.1 70B (Instruct) costs $0.59/M input tokens and Qwen3.5 Plus 2026-02-15 costs $0.4/M input tokens. Qwen3.5 Plus 2026-02-15 is $0.19/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15 on Rival?

This page shows a side-by-side comparison of Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15 across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Feb 2026

Llama 3.1 70B (Instruct)vsQwen3.5 Plus 2026-02-15

Qwen3.5 Plus 2026-02-15 is cheaper than Llama 3.1 70B (Instruct) at $0.4/M vs $0.59/M input tokens.

Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15 compared across 51 shared prompts
Spec	Llama 3.1 70B (Instruct)	Qwen3.5 Plus 2026-02-15
Input price	$0.59/M tokens	$0.4/M tokens
Output price	$0.79/M tokens	$2.4/M tokens
Context window	128K tokens	1.0M tokens
Released	Jul 2024	Feb 2026

Our Verdict

Qwen3.5 Plus 2026-02-15

Llama 3.1 70B (Instruct)Runner-up

Not enough votes to call it. On the specs, Qwen3.5 Plus 2026-02-15 has the edge: bigger model tier, newer, bigger context window.

Llama 3.1 70B (Instruct) costs 3.0x less per token.

Too close to call

What do Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Llama 3.1 70B (Instruct)

Input

$0.59

Output

$0.79

3.0× cheaper

Qwen3.5 Plus 2026-02-15

Input

$0.40

1.5× cheaper

Output

$2.40

Qwen3.5 Plus 2026-02-15 wins input (1.5× cheaper)·Llama 3.1 70B (Instruct) wins output (3.0× cheaper)

Writing DNA

Style Comparison

Similarity

68%

Qwen3.5 Plus 2026-02-15 uses 10.0x more emoji

Llama 3.1 70B (Instruct)

Qwen3.5 Plus 2026-02-15

51%Vocabulary54%

18wSentence Length18w

0.46Hedging0.51

3.4Bold5.3

5.6Lists2.9

0.00Emoji0.10

0.00Headings0.75

0.06Transitions0.09

Based on 15 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

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Llama 3.1 70B (Instruct) vs MiniMax M3New provider

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Llama 3.1 70B (Instruct) vs GPT-5.1-CodexNew provider

Llama 3.1 70B (Instruct) vs GPT-5.1 Codex MaxNew provider

Llama 3.1 70B (Instruct) vs GPT-5.1-Codex-MiniNew provider

Llama 3.1 70B (Instruct) vs GPT-5.2New provider

Updated Feb 2026

Llama 3.1 70B (Instruct)vsQwen3.5 Plus 2026-02-15

Qwen3.5 Plus 2026-02-15 is cheaper than Llama 3.1 70B (Instruct) at $0.4/M vs $0.59/M input tokens.

Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15 compared across 51 shared prompts
Spec	Llama 3.1 70B (Instruct)	Qwen3.5 Plus 2026-02-15
Input price	$0.59/M tokens	$0.4/M tokens
Output price	$0.79/M tokens	$2.4/M tokens
Context window	128K tokens	1.0M tokens
Released	Jul 2024	Feb 2026

Our Verdict

Qwen3.5 Plus 2026-02-15

Llama 3.1 70B (Instruct)Runner-up

Not enough votes to call it. On the specs, Qwen3.5 Plus 2026-02-15 has the edge: bigger model tier, newer, bigger context window.

Llama 3.1 70B (Instruct) costs 3.0x less per token.

Too close to call

What do Llama 3.1 70B (Instruct) and Qwen3.5 Plus 2026-02-15 say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Llama 3.1 70B (Instruct)

Input

$0.59

Output

$0.79

3.0× cheaper

Qwen3.5 Plus 2026-02-15

Input

$0.40

1.5× cheaper

Output

$2.40

Qwen3.5 Plus 2026-02-15 wins input (1.5× cheaper)·Llama 3.1 70B (Instruct) wins output (3.0× cheaper)

Writing DNA

Style Comparison

Similarity

68%

Qwen3.5 Plus 2026-02-15 uses 10.0x more emoji

Llama 3.1 70B (Instruct)

Qwen3.5 Plus 2026-02-15

51%Vocabulary54%

18wSentence Length18w

0.46Hedging0.51

3.4Bold5.3

5.6Lists2.9

0.00Emoji0.10

0.00Headings0.75

0.06Transitions0.09

Based on 15 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Llama 3.1 70B (Instruct) vs Ox AlphaNew provider

Llama 3.1 70B (Instruct) vs MiniMax M3New provider

Llama 3.1 70B (Instruct) vs GPT-5New provider

Llama 3.1 70B (Instruct) vs Claude Opus 4New provider

Llama 3.1 70B (Instruct) vs GPT-5.1-CodexNew provider

Llama 3.1 70B (Instruct) vs GPT-5.1 Codex MaxNew provider

Llama 3.1 70B (Instruct) vs GPT-5.1-Codex-MiniNew provider

Llama 3.1 70B (Instruct) vs GPT-5.2New provider