What is the difference between Grok 3 Beta and Mercury?

Grok 3 Beta is developed by xAI while Mercury is developed by Inception. Grok 3 Beta has a 131K token context window vs Mercury's 32K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Grok 3 Beta or Mercury?

It depends on your use case. Grok 3 Beta and Mercury each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Grok 3 Beta cost compared to Mercury?

Grok 3 Beta costs $2/M input tokens and Mercury costs $10/M input tokens. Grok 3 Beta is $8.00/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 Mercury on Rival?

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

Grok 3 Beta is developed by xAI while Mercury is developed by Inception. Grok 3 Beta has a 131K token context window vs Mercury's 32K. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, Grok 3 Beta or Mercury?

It depends on your use case. Grok 3 Beta and Mercury each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does Grok 3 Beta cost compared to Mercury?

Grok 3 Beta costs $2/M input tokens and Mercury costs $10/M input tokens. Grok 3 Beta is $8.00/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 Mercury on Rival?

This page shows a side-by-side comparison of Grok 3 Beta and Mercury 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 Mercury: Which Is Better?

Updated Jun 2025

Our Verdict

Grok 3 Beta

MercuryRunner-up

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

Too close to call

What do Grok 3 Beta and Mercury say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Grok 3 Beta

Input

$2.00

5.0× cheaper

Output

$4.00

2.5× cheaper

Mercury

Input

$10.00

Output

$10.00

Grok 3 Beta is cheaper on both — 5.0× input, 2.5× output

Writing DNA

Style Comparison

Similarity

46%

Mercury uses 4.3x more emoji

Grok 3 Beta

Mercury

48%Vocabulary55%

19wSentence Length40w

0.67Hedging0.39

3.1Bold4.9

5.5Lists3.8

0.00Emoji0.04

0.52Headings1.04

0.28Transitions0.03

Based on 23 + 17 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Mercury vs MiniMax M2.7New provider

Grok 3 Beta vs Ox AlphaNew provider

Grok 3 Beta vs OpenAI o3New provider

Updated Jun 2025

Our Verdict

Grok 3 Beta

MercuryRunner-up

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

Too close to call

What do Grok 3 Beta and Mercury say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Grok 3 Beta

Input

$2.00

5.0× cheaper

Output

$4.00

2.5× cheaper

Mercury

Input

$10.00

Output

$10.00

Grok 3 Beta is cheaper on both — 5.0× input, 2.5× output

Writing DNA

Style Comparison

Similarity

46%

Mercury uses 4.3x more emoji

Grok 3 Beta

Mercury

48%Vocabulary55%

19wSentence Length40w

0.67Hedging0.39

3.1Bold4.9

5.5Lists3.8

0.00Emoji0.04

0.52Headings1.04

0.28Transitions0.03

Based on 23 + 17 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Mercury vs MiniMax M2.7New provider

Grok 3 Beta vs Ox AlphaNew provider

Grok 3 Beta vs OpenAI o3New provider