What is the difference between OpenAI: GPT-5.6 Sol and Grok 3 Beta?

OpenAI: GPT-5.6 Sol is developed by OpenAI while Grok 3 Beta is developed by xAI. OpenAI: GPT-5.6 Sol has a 1.1M token context window vs Grok 3 Beta's 131K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, OpenAI: GPT-5.6 Sol or Grok 3 Beta?

It depends on your use case. OpenAI: GPT-5.6 Sol and Grok 3 Beta each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does OpenAI: GPT-5.6 Sol cost compared to Grok 3 Beta?

OpenAI: GPT-5.6 Sol costs $5/M input tokens and Grok 3 Beta costs $2/M input tokens. Grok 3 Beta is $3.00/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 Grok 3 Beta on Rival?

This page shows a side-by-side comparison of OpenAI: GPT-5.6 Sol and Grok 3 Beta 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 Grok 3 Beta?

OpenAI: GPT-5.6 Sol is developed by OpenAI while Grok 3 Beta is developed by xAI. OpenAI: GPT-5.6 Sol has a 1.1M token context window vs Grok 3 Beta's 131K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, OpenAI: GPT-5.6 Sol or Grok 3 Beta?

It depends on your use case. OpenAI: GPT-5.6 Sol and Grok 3 Beta each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does OpenAI: GPT-5.6 Sol cost compared to Grok 3 Beta?

OpenAI: GPT-5.6 Sol costs $5/M input tokens and Grok 3 Beta costs $2/M input tokens. Grok 3 Beta is $3.00/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 Grok 3 Beta on Rival?

This page shows a side-by-side comparison of OpenAI: GPT-5.6 Sol and Grok 3 Beta 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 Grok 3 Beta: Which Is Better?

Updated Jul 2026

Our Verdict

OpenAI: GPT-5.6 Sol

Grok 3 BetaRunner-up

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

Grok 3 Beta is 7.5x 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

Grok 3 Beta

Input

$2.00

2.5× cheaper

Output

$4.00

7.5× cheaper

Grok 3 Beta is cheaper on both — 2.5× input, 7.5× output

Writing DNA

Style Comparison

Similarity

48%

OpenAI: GPT-5.6 Sol uses 3.3x more emoji

OpenAI: GPT-5.6 Sol

Grok 3 Beta

63%Vocabulary48%

15wSentence Length19w

0.79Hedging0.67

3.4Bold3.1

3.8Lists5.5

0.03Emoji0.00

0.95Headings0.52

0.08Transitions0.28

Based on 27 + 23 text responses

Research

What we learned reading every model

OpenAI: GPT-5.6 Sol and Grok 3 Beta 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

Grok 3 Beta vs MiniMax M3New provider

Grok 3 Beta vs Claude Opus 4.1New provider

Grok 3 Beta vs GPT-5Cross-provider

Updated Jul 2026

Our Verdict

OpenAI: GPT-5.6 Sol

Grok 3 BetaRunner-up

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

Grok 3 Beta is 7.5x 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

Grok 3 Beta

Input

$2.00

2.5× cheaper

Output

$4.00

7.5× cheaper

Grok 3 Beta is cheaper on both — 2.5× input, 7.5× output

Writing DNA

Style Comparison

Similarity

48%

OpenAI: GPT-5.6 Sol uses 3.3x more emoji

OpenAI: GPT-5.6 Sol

Grok 3 Beta

63%Vocabulary48%

15wSentence Length19w

0.79Hedging0.67

3.4Bold3.1

3.8Lists5.5

0.03Emoji0.00

0.95Headings0.52

0.08Transitions0.28

Based on 27 + 23 text responses

Research

What we learned reading every model

OpenAI: GPT-5.6 Sol and Grok 3 Beta 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

Grok 3 Beta vs MiniMax M3New provider

Grok 3 Beta vs Claude Opus 4.1New provider

Grok 3 Beta vs GPT-5Cross-provider