What is the difference between GPT-4.1 Nano and xAI: Grok 4.3?

GPT-4.1 Nano is developed by OpenAI while xAI: Grok 4.3 is developed by xAI. GPT-4.1 Nano has a 1.0M token context window vs xAI: Grok 4.3's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-4.1 Nano or xAI: Grok 4.3?

It depends on your use case. GPT-4.1 Nano and xAI: Grok 4.3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does GPT-4.1 Nano cost compared to xAI: Grok 4.3?

GPT-4.1 Nano costs $0.1/M input tokens and xAI: Grok 4.3 costs $1.25/M input tokens. GPT-4.1 Nano is $1.15/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-4.1 Nano and xAI: Grok 4.3 on Rival?

This page shows a side-by-side comparison of GPT-4.1 Nano and xAI: Grok 4.3 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 GPT-4.1 Nano and xAI: Grok 4.3?

GPT-4.1 Nano is developed by OpenAI while xAI: Grok 4.3 is developed by xAI. GPT-4.1 Nano has a 1.0M token context window vs xAI: Grok 4.3's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-4.1 Nano or xAI: Grok 4.3?

It depends on your use case. GPT-4.1 Nano and xAI: Grok 4.3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does GPT-4.1 Nano cost compared to xAI: Grok 4.3?

GPT-4.1 Nano costs $0.1/M input tokens and xAI: Grok 4.3 costs $1.25/M input tokens. GPT-4.1 Nano is $1.15/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-4.1 Nano and xAI: Grok 4.3 on Rival?

This page shows a side-by-side comparison of GPT-4.1 Nano and xAI: Grok 4.3 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.

GPT-4.1 Nano vs xAI: Grok 4.3: Which Is Better?

Updated May 2026

Our Verdict

xAI: Grok 4.3

GPT-4.1 NanoRunner-up

No community votes yet. On paper, xAI: Grok 4.3 has the edge — bigger model tier, newer.

GPT-4.1 Nano is 6.3x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

GPT-4.1 Nano

Input

$0.10

13× cheaper

Output

$0.40

6.3× cheaper

xAI: Grok 4.3

Input

$1.25

Output

$2.50

GPT-4.1 Nano is cheaper on both — 13× input, 6.3× output

Writing DNA

Style Comparison

Similarity

46%

GPT-4.1 Nano uses 2.5x more bold

GPT-4.1 Nano

xAI: Grok 4.3

57%Vocabulary62%

25wSentence Length16w

0.72Hedging0.46

5.6Bold2.3

4.9Lists2.5

0.00Emoji0.00

0.71Headings0.34

0.22Transitions0.14

Based on 24 + 27 text responses

Research

What we learned reading every model

GPT-4.1 Nano and xAI: Grok 4.3 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

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GPT-4.1 Nano vs Claude Sonnet 4New provider

GPT-4.1 Nano vs Aurora AlphaNew provider

Updated May 2026

Our Verdict

xAI: Grok 4.3

GPT-4.1 NanoRunner-up

No community votes yet. On paper, xAI: Grok 4.3 has the edge — bigger model tier, newer.

GPT-4.1 Nano is 6.3x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

GPT-4.1 Nano

Input

$0.10

13× cheaper

Output

$0.40

6.3× cheaper

xAI: Grok 4.3

Input

$1.25

Output

$2.50

GPT-4.1 Nano is cheaper on both — 13× input, 6.3× output

Writing DNA

Style Comparison

Similarity

46%

GPT-4.1 Nano uses 2.5x more bold

GPT-4.1 Nano

xAI: Grok 4.3

57%Vocabulary62%

25wSentence Length16w

0.72Hedging0.46

5.6Bold2.3

4.9Lists2.5

0.00Emoji0.00

0.71Headings0.34

0.22Transitions0.14

Based on 24 + 27 text responses

Research

What we learned reading every model

GPT-4.1 Nano and xAI: Grok 4.3 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

GPT-4.1 Nano vs MiniMax M3New provider

GPT-4.1 Nano vs Claude Sonnet 4New provider

GPT-4.1 Nano vs Aurora AlphaNew provider