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

GPT-5 is developed by OpenAI while Grok 3 is developed by xAI. GPT-5 has a 400K token context window vs Grok 3's 128K. in 9 community votes on Rival, GPT-5 wins 86% of head-to-head matchups. These results are based on blind head-to-head voting across 51 challenges.

Which is better, GPT-5 or Grok 3?

Based on 9 community votes on Rival, GPT-5 wins 86% of head-to-head matchups against Grok 3. GPT-5 is strongest in Reasoning.

How are GPT-5 vs Grok 3 votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 9 votes have been collected for this pair across 51 challenges. All vote data is part of Rival's open dataset.

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

GPT-5 is developed by OpenAI while Grok 3 is developed by xAI. GPT-5 has a 400K token context window vs Grok 3's 128K. in 9 community votes on Rival, GPT-5 wins 86% of head-to-head matchups. These results are based on blind head-to-head voting across 51 challenges.

Which is better, GPT-5 or Grok 3?

Based on 9 community votes on Rival, GPT-5 wins 86% of head-to-head matchups against Grok 3. GPT-5 is strongest in Reasoning.

How are GPT-5 vs Grok 3 votes collected on Rival?

Rival presents both models' outputs side-by-side in blind duels. Voters see the responses but don't know which model produced each one, eliminating brand bias. 9 votes have been collected for this pair across 51 challenges. All vote data is part of Rival's open dataset.

GPT-5 vs Grok 3: Which Is Better?

Updated Aug 2025

Our Verdict

GPT-5Winner

Grok 3Runner-up

Pick GPT-5. In 9 blind votes, GPT-5 wins 86% of the time. That's not luck.

GPT-5 particularly excels in Reasoning.

Clear winner

API pricing

Cost per 1M tokens

GPT-5

Input

$1.25

Output

$10.00

Grok 3

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

52%

Grok 3 uses 3.9x more emoji

GPT-5

Grok 3

65%Vocabulary49%

13wSentence Length18w

0.20Hedging0.94

0.2Bold2.5

4.6Lists3.0

0.00Emoji0.04

0.16Headings0.65

0.03Transitions0.08

Based on 16 + 17 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

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Grok 3 vs MiniMax M3New provider

Grok 3 vs Llama 4 MaverickNew provider

Grok 3 vs Claude Opus 4New provider

Updated Aug 2025

Our Verdict

GPT-5Winner

Grok 3Runner-up

Pick GPT-5. In 9 blind votes, GPT-5 wins 86% of the time. That's not luck.

GPT-5 particularly excels in Reasoning.

Clear winner

API pricing

Cost per 1M tokens

GPT-5

Input

$1.25

Output

$10.00

Grok 3

Input

—

Output

—

Writing DNA

Style Comparison

Similarity

52%

Grok 3 uses 3.9x more emoji

GPT-5

Grok 3

65%Vocabulary49%

13wSentence Length18w

0.20Hedging0.94

0.2Bold2.5

4.6Lists3.0

0.00Emoji0.04

0.16Headings0.65

0.03Transitions0.08

Based on 16 + 17 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Grok 3 vs MiniMax M3New provider

Grok 3 vs Llama 4 MaverickNew provider

Grok 3 vs Claude Opus 4New provider