What is the difference between Grok 3 Beta and Solar Pro 3?

Grok 3 Beta is developed by xAI while Solar Pro 3 is developed by Upstage. Grok 3 Beta has a 131K token context window vs Solar Pro 3's 128K. You can compare their actual outputs across 39 challenges on Rival to see how they differ in practice.

Which is better, Grok 3 Beta or Solar Pro 3?

It depends on your use case. Grok 3 Beta and Solar Pro 3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 39 challenges so you can judge which fits your needs best.

How much does Grok 3 Beta cost compared to Solar Pro 3?

Grok 3 Beta costs $2/M input tokens and Solar Pro 3 costs $0/M input tokens. Solar Pro 3 is $2.00/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 Grok 3 Beta and Solar Pro 3 on Rival?

This page shows a side-by-side comparison of Grok 3 Beta and Solar Pro 3 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 Grok 3 Beta and Solar Pro 3?

Grok 3 Beta is developed by xAI while Solar Pro 3 is developed by Upstage. Grok 3 Beta has a 131K token context window vs Solar Pro 3's 128K. You can compare their actual outputs across 39 challenges on Rival to see how they differ in practice.

Which is better, Grok 3 Beta or Solar Pro 3?

It depends on your use case. Grok 3 Beta and Solar Pro 3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 39 challenges so you can judge which fits your needs best.

How much does Grok 3 Beta cost compared to Solar Pro 3?

Grok 3 Beta costs $2/M input tokens and Solar Pro 3 costs $0/M input tokens. Solar Pro 3 is $2.00/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 Grok 3 Beta and Solar Pro 3 on Rival?

This page shows a side-by-side comparison of Grok 3 Beta and Solar Pro 3 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.

Grok 3 Beta vs Solar Pro 3: Which Is Better?

Updated Jan 2026

Our Verdict

Grok 3 Beta

Solar Pro 3Runner-up

No community votes yet. On paper, Grok 3 Beta has the edge — bigger model tier, major provider backing.

Too close to call

API pricing

Cost per 1M tokens

Grok 3 Beta

Input

$2.00

Output

$4.00

Solar Pro 3

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

59%

Solar Pro 3 uses 17.3x more emoji

Grok 3 Beta

Solar Pro 3

48%Vocabulary50%

19wSentence Length21w

0.67Hedging0.42

3.1Bold6.5

5.5Lists2.2

0.00Emoji0.17

0.52Headings0.56

0.28Transitions0.12

Based on 23 + 18 text responses

Research

What we learned reading every model

Grok 3 Beta and Solar Pro 3 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

Solar Pro 3 vs MiniMax M2.5New provider

Grok 3 Beta vs Aurora AlphaNew provider

Grok 3 Beta vs OpenAI o3New provider

Updated Jan 2026

Our Verdict

Grok 3 Beta

Solar Pro 3Runner-up

No community votes yet. On paper, Grok 3 Beta has the edge — bigger model tier, major provider backing.

Too close to call

API pricing

Cost per 1M tokens

Grok 3 Beta

Input

$2.00

Output

$4.00

Solar Pro 3

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

59%

Solar Pro 3 uses 17.3x more emoji

Grok 3 Beta

Solar Pro 3

48%Vocabulary50%

19wSentence Length21w

0.67Hedging0.42

3.1Bold6.5

5.5Lists2.2

0.00Emoji0.17

0.52Headings0.56

0.28Transitions0.12

Based on 23 + 18 text responses

Research

What we learned reading every model

Grok 3 Beta and Solar Pro 3 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

Solar Pro 3 vs MiniMax M2.5New provider

Grok 3 Beta vs Aurora AlphaNew provider

Grok 3 Beta vs OpenAI o3New provider