What is the difference between GPT-5.3-Codex and Llama 4 Scout?

GPT-5.3-Codex is developed by OpenAI while Llama 4 Scout is developed by Meta AI. GPT-5.3-Codex has a 400K token context window vs Llama 4 Scout's 10.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.3-Codex or Llama 4 Scout?

It depends on your use case. GPT-5.3-Codex and Llama 4 Scout 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-5.3-Codex cost compared to Llama 4 Scout?

GPT-5.3-Codex costs $1.75/M input tokens and Llama 4 Scout costs $0.25/M input tokens. Llama 4 Scout is $1.50/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-5.3-Codex and Llama 4 Scout on Rival?

This page shows a side-by-side comparison of GPT-5.3-Codex and Llama 4 Scout 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-5.3-Codex and Llama 4 Scout?

GPT-5.3-Codex is developed by OpenAI while Llama 4 Scout is developed by Meta AI. GPT-5.3-Codex has a 400K token context window vs Llama 4 Scout's 10.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.3-Codex or Llama 4 Scout?

It depends on your use case. GPT-5.3-Codex and Llama 4 Scout 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-5.3-Codex cost compared to Llama 4 Scout?

GPT-5.3-Codex costs $1.75/M input tokens and Llama 4 Scout costs $0.25/M input tokens. Llama 4 Scout is $1.50/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-5.3-Codex and Llama 4 Scout on Rival?

This page shows a side-by-side comparison of GPT-5.3-Codex and Llama 4 Scout 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-5.3-Codex vs Llama 4 Scout: Which Is Better?

Updated Feb 2026

Our Verdict

GPT-5.3-Codex

Llama 4 ScoutRunner-up

No community votes yet. On paper, GPT-5.3-Codex has the edge — bigger model tier, newer.

Llama 4 Scout is 28x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

GPT-5.3-Codex

Input

$1.75

Output

$14.00

Llama 4 Scout

Input

$0.25

7.0× cheaper

Output

$0.50

28× cheaper

Llama 4 Scout is cheaper on both — 7.0× input, 28× output

Writing DNA

Style Comparison

Similarity

45%

GPT-5.3-Codex uses 15.8x more emoji

GPT-5.3-Codex

Llama 4 Scout

65%Vocabulary43%

23wSentence Length42w

0.51Hedging0.81

6.5Bold4.1

6.2Lists7.3

0.16Emoji0.00

1.90Headings0.30

0.03Transitions0.04

Based on 23 + 10 text responses

Research

What we learned reading every model

GPT-5.3-Codex and Llama 4 Scout 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

Llama 4 Scout vs MiniMax M3New provider

GPT-5.3-Codex vs Llama 4 MaverickCross-provider

Llama 4 Scout vs Claude Opus 4New provider

Updated Feb 2026

Our Verdict

GPT-5.3-Codex

Llama 4 ScoutRunner-up

No community votes yet. On paper, GPT-5.3-Codex has the edge — bigger model tier, newer.

Llama 4 Scout is 28x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

GPT-5.3-Codex

Input

$1.75

Output

$14.00

Llama 4 Scout

Input

$0.25

7.0× cheaper

Output

$0.50

28× cheaper

Llama 4 Scout is cheaper on both — 7.0× input, 28× output

Writing DNA

Style Comparison

Similarity

45%

GPT-5.3-Codex uses 15.8x more emoji

GPT-5.3-Codex

Llama 4 Scout

65%Vocabulary43%

23wSentence Length42w

0.51Hedging0.81

6.5Bold4.1

6.2Lists7.3

0.16Emoji0.00

1.90Headings0.30

0.03Transitions0.04

Based on 23 + 10 text responses

Research

What we learned reading every model

GPT-5.3-Codex and Llama 4 Scout 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

Llama 4 Scout vs MiniMax M3New provider

GPT-5.3-Codex vs Llama 4 MaverickCross-provider

Llama 4 Scout vs Claude Opus 4New provider