What is the difference between GPT-5 Pro and Grok 3 Mini Beta?

GPT-5 Pro is developed by OpenAI while Grok 3 Mini Beta is developed by xAI. GPT-5 Pro has a 400K token context window vs Grok 3 Mini Beta's 131K. You can compare their actual outputs across 8 challenges on Rival to see how they differ in practice.

Which is better, GPT-5 Pro or Grok 3 Mini Beta?

It depends on your use case. GPT-5 Pro and Grok 3 Mini Beta each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 8 challenges so you can judge which fits your needs best.

How much does GPT-5 Pro cost compared to Grok 3 Mini Beta?

GPT-5 Pro costs $15/M input tokens and Grok 3 Mini Beta costs $0.4/M input tokens. Grok 3 Mini Beta is $14.60/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 GPT-5 Pro and Grok 3 Mini Beta on Rival?

This page shows a side-by-side comparison of GPT-5 Pro and Grok 3 Mini 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 GPT-5 Pro and Grok 3 Mini Beta?

GPT-5 Pro is developed by OpenAI while Grok 3 Mini Beta is developed by xAI. GPT-5 Pro has a 400K token context window vs Grok 3 Mini Beta's 131K. You can compare their actual outputs across 8 challenges on Rival to see how they differ in practice.

Which is better, GPT-5 Pro or Grok 3 Mini Beta?

It depends on your use case. GPT-5 Pro and Grok 3 Mini Beta each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 8 challenges so you can judge which fits your needs best.

How much does GPT-5 Pro cost compared to Grok 3 Mini Beta?

GPT-5 Pro costs $15/M input tokens and Grok 3 Mini Beta costs $0.4/M input tokens. Grok 3 Mini Beta is $14.60/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 GPT-5 Pro and Grok 3 Mini Beta on Rival?

This page shows a side-by-side comparison of GPT-5 Pro and Grok 3 Mini 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.

Updated Oct 2025

GPT-5 ProvsGrok 3 Mini Beta

Grok 3 Mini Beta is cheaper than GPT-5 Pro at $0.4/M vs $15/M input tokens.

GPT-5 Pro and Grok 3 Mini Beta compared across 8 shared prompts
Spec	GPT-5 Pro	Grok 3 Mini Beta
Input price	$15/M tokens	$0.4/M tokens
Output price	$120/M tokens	$0.8/M tokens
Context window	400K tokens	131K tokens
Released	Oct 2025	Apr 2025
LiveCodeBench	54.3%	80.4%

Our Verdict

GPT-5 Pro

Grok 3 Mini BetaRunner-up

Not enough votes to call it. On the specs, GPT-5 Pro has the edge: bigger model tier, newer, bigger context window.

Grok 3 Mini Beta costs 150x less per token.

Slight edge

What do GPT-5 Pro and Grok 3 Mini Beta say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

GPT-5 Pro

Input

$15.00

Output

$120.00

Grok 3 Mini Beta

Input

$0.40

38× cheaper

Output

$0.80

150× cheaper

Grok 3 Mini Beta is cheaper on both — 38× input, 150× output

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

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Updated Oct 2025

GPT-5 ProvsGrok 3 Mini Beta

Grok 3 Mini Beta is cheaper than GPT-5 Pro at $0.4/M vs $15/M input tokens.

GPT-5 Pro and Grok 3 Mini Beta compared across 8 shared prompts
Spec	GPT-5 Pro	Grok 3 Mini Beta
Input price	$15/M tokens	$0.4/M tokens
Output price	$120/M tokens	$0.8/M tokens
Context window	400K tokens	131K tokens
Released	Oct 2025	Apr 2025
LiveCodeBench	54.3%	80.4%