What is the difference between OpenAI: GPT-5.6 Sol and Llama 3.1 405B?

OpenAI: GPT-5.6 Sol is developed by OpenAI while Llama 3.1 405B is developed by Meta AI. OpenAI: GPT-5.6 Sol has a 1.1M token context window vs Llama 3.1 405B's 128K. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, OpenAI: GPT-5.6 Sol or Llama 3.1 405B?

It depends on your use case. OpenAI: GPT-5.6 Sol and Llama 3.1 405B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does OpenAI: GPT-5.6 Sol cost compared to Llama 3.1 405B?

OpenAI: GPT-5.6 Sol costs $5/M input tokens and Llama 3.1 405B costs $2.7/M input tokens. Llama 3.1 405B is $2.30/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 OpenAI: GPT-5.6 Sol and Llama 3.1 405B on Rival?

This page shows a side-by-side comparison of OpenAI: GPT-5.6 Sol and Llama 3.1 405B 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 OpenAI: GPT-5.6 Sol and Llama 3.1 405B?

OpenAI: GPT-5.6 Sol is developed by OpenAI while Llama 3.1 405B is developed by Meta AI. OpenAI: GPT-5.6 Sol has a 1.1M token context window vs Llama 3.1 405B's 128K. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, OpenAI: GPT-5.6 Sol or Llama 3.1 405B?

It depends on your use case. OpenAI: GPT-5.6 Sol and Llama 3.1 405B each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does OpenAI: GPT-5.6 Sol cost compared to Llama 3.1 405B?

OpenAI: GPT-5.6 Sol costs $5/M input tokens and Llama 3.1 405B costs $2.7/M input tokens. Llama 3.1 405B is $2.30/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 OpenAI: GPT-5.6 Sol and Llama 3.1 405B on Rival?

This page shows a side-by-side comparison of OpenAI: GPT-5.6 Sol and Llama 3.1 405B 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.

OpenAI: GPT-5.6 Sol vs Llama 3.1 405B: Which Is Better?

Updated Jul 2026

Our Verdict

OpenAI: GPT-5.6 Sol

Llama 3.1 405BRunner-up

No community votes yet. On paper, OpenAI: GPT-5.6 Sol has the edge — newer, bigger context window.

Llama 3.1 405B is 9.7x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

OpenAI: GPT-5.6 Sol

Input

$5.00

Output

$30.00

Llama 3.1 405B

Input

$2.70

1.9× cheaper

Output

$3.10

9.7× cheaper

Llama 3.1 405B is cheaper on both — 1.9× input, 9.7× output

Writing DNA

Style Comparison

Similarity

49%

OpenAI: GPT-5.6 Sol uses 342.6x more bold

OpenAI: GPT-5.6 Sol

Llama 3.1 405B

63%Vocabulary56%

15wSentence Length15w

0.79Hedging0.41

3.4Bold0.0

3.8Lists1.9

0.03Emoji0.03

0.95Headings0.00

0.08Transitions0.16

Based on 27 + 5 text responses

Research

What we learned reading every model

OpenAI: GPT-5.6 Sol and Llama 3.1 405B have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Llama 3.1 405B vs MiniMax M3New provider

Llama 3.1 405B vs Claude Opus 4.1New provider

Llama 3.1 405B vs GPT-5Cross-provider

Updated Jul 2026

Our Verdict

OpenAI: GPT-5.6 Sol

Llama 3.1 405BRunner-up

No community votes yet. On paper, OpenAI: GPT-5.6 Sol has the edge — newer, bigger context window.

Llama 3.1 405B is 9.7x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

OpenAI: GPT-5.6 Sol

Input

$5.00

Output

$30.00

Llama 3.1 405B

Input

$2.70

1.9× cheaper

Output

$3.10

9.7× cheaper

Llama 3.1 405B is cheaper on both — 1.9× input, 9.7× output

Writing DNA

Style Comparison

Similarity

49%

OpenAI: GPT-5.6 Sol uses 342.6x more bold

OpenAI: GPT-5.6 Sol

Llama 3.1 405B

63%Vocabulary56%

15wSentence Length15w

0.79Hedging0.41

3.4Bold0.0

3.8Lists1.9

0.03Emoji0.03

0.95Headings0.00

0.08Transitions0.16

Based on 27 + 5 text responses

Research

What we learned reading every model

OpenAI: GPT-5.6 Sol and Llama 3.1 405B have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

Llama 3.1 405B vs MiniMax M3New provider

Llama 3.1 405B vs Claude Opus 4.1New provider

Llama 3.1 405B vs GPT-5Cross-provider