What is the difference between GPT-5.2 Pro and Grok Code Fast 1?

GPT-5.2 Pro is developed by OpenAI while Grok Code Fast 1 is developed by xAI. GPT-5.2 Pro has a 400K token context window vs Grok Code Fast 1's 256K. You can compare their actual outputs across 31 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.2 Pro or Grok Code Fast 1?

It depends on your use case. GPT-5.2 Pro and Grok Code Fast 1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 31 challenges so you can judge which fits your needs best.

How much does GPT-5.2 Pro cost compared to Grok Code Fast 1?

GPT-5.2 Pro costs $21/M input tokens and Grok Code Fast 1 costs $0.2/M input tokens. Grok Code Fast 1 is $20.80/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-5.2 Pro and Grok Code Fast 1 on Rival?

This page shows a side-by-side comparison of GPT-5.2 Pro and Grok Code Fast 1 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-5.2 Pro and Grok Code Fast 1?

GPT-5.2 Pro is developed by OpenAI while Grok Code Fast 1 is developed by xAI. GPT-5.2 Pro has a 400K token context window vs Grok Code Fast 1's 256K. You can compare their actual outputs across 31 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.2 Pro or Grok Code Fast 1?

It depends on your use case. GPT-5.2 Pro and Grok Code Fast 1 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 31 challenges so you can judge which fits your needs best.

How much does GPT-5.2 Pro cost compared to Grok Code Fast 1?

GPT-5.2 Pro costs $21/M input tokens and Grok Code Fast 1 costs $0.2/M input tokens. Grok Code Fast 1 is $20.80/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-5.2 Pro and Grok Code Fast 1 on Rival?

This page shows a side-by-side comparison of GPT-5.2 Pro and Grok Code Fast 1 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 Dec 2025

GPT-5.2 ProvsGrok Code Fast 1

Grok Code Fast 1 is cheaper than GPT-5.2 Pro at $0.2/M vs $21/M input tokens.

GPT-5.2 Pro and Grok Code Fast 1 compared across 31 shared prompts
Spec	GPT-5.2 Pro	Grok Code Fast 1
Input price	$21/M tokens	$0.2/M tokens
Output price	$168/M tokens	$1.5/M tokens
Context window	400K tokens	256K tokens
Released	Dec 2025	Aug 2025
SWE-bench Verified	80.0%	70.8%

Our Verdict

GPT-5.2 Pro

Grok Code Fast 1Runner-up

Not enough votes to call it. On the specs, GPT-5.2 Pro has the edge: bigger model tier, newer, bigger context window.

Grok Code Fast 1 costs 112x less per token.

Slight edge

What do GPT-5.2 Pro and Grok Code Fast 1 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-5.2 Pro

Input

$21.00

Output

$168.00

Grok Code Fast 1

Input

$0.20

105× cheaper

Output

$1.50

112× cheaper

Grok Code Fast 1 is cheaper on both — 105× input, 112× output

Writing DNA

Style Comparison

Similarity

49%

Grok Code Fast 1 uses 6.0x more emoji

GPT-5.2 Pro

Grok Code Fast 1

62%Vocabulary60%

19wSentence Length17w

0.39Hedging0.97

8.6Bold2.8

3.8Lists2.5

0.00Emoji0.06

1.17Headings0.89

0.02Transitions0.11

Based on 10 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Grok Code Fast 1 vs MiniMax M3New provider

Grok Code Fast 1 vs Ox AlphaNew provider

Grok Code Fast 1 vs Claude Opus 4New provider

Grok Code Fast 1 vs Claude Opus 4.1New provider

GPT-5.2 Pro vs Qwen3 235B A22B 2507New provider

GPT-5.2 Pro vs Qwen3 235B A22B Thinking 2507New provider

GPT-5.2 Pro vs Qwen3 30B A3BNew provider

GPT-5.2 Pro vs Qwen3 30B A3B Instruct 2507New provider

Updated Dec 2025

GPT-5.2 ProvsGrok Code Fast 1

Grok Code Fast 1 is cheaper than GPT-5.2 Pro at $0.2/M vs $21/M input tokens.

GPT-5.2 Pro and Grok Code Fast 1 compared across 31 shared prompts
Spec	GPT-5.2 Pro	Grok Code Fast 1
Input price	$21/M tokens	$0.2/M tokens
Output price	$168/M tokens	$1.5/M tokens
Context window	400K tokens	256K tokens
Released	Dec 2025	Aug 2025
SWE-bench Verified	80.0%	70.8%

Our Verdict

GPT-5.2 Pro

Grok Code Fast 1Runner-up

Not enough votes to call it. On the specs, GPT-5.2 Pro has the edge: bigger model tier, newer, bigger context window.

Grok Code Fast 1 costs 112x less per token.

Slight edge

What do GPT-5.2 Pro and Grok Code Fast 1 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-5.2 Pro

Input

$21.00

Output

$168.00

Grok Code Fast 1

Input

$0.20

105× cheaper

Output

$1.50

112× cheaper

Grok Code Fast 1 is cheaper on both — 105× input, 112× output

Writing DNA

Style Comparison

Similarity

49%

Grok Code Fast 1 uses 6.0x more emoji

GPT-5.2 Pro

Grok Code Fast 1

62%Vocabulary60%

19wSentence Length17w

0.39Hedging0.97

8.6Bold2.8

3.8Lists2.5

0.00Emoji0.06

1.17Headings0.89

0.02Transitions0.11

Based on 10 + 23 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Grok Code Fast 1 vs MiniMax M3New provider

Grok Code Fast 1 vs Ox AlphaNew provider

Grok Code Fast 1 vs Claude Opus 4New provider

Grok Code Fast 1 vs Claude Opus 4.1New provider

GPT-5.2 Pro vs Qwen3 235B A22B 2507New provider

GPT-5.2 Pro vs Qwen3 235B A22B Thinking 2507New provider

GPT-5.2 Pro vs Qwen3 30B A3BNew provider

GPT-5.2 Pro vs Qwen3 30B A3B Instruct 2507New provider