What is the difference between GPT-5.1 Codex Max and Thinking Machines: Inkling?

GPT-5.1 Codex Max is developed by OpenAI while Thinking Machines: Inkling is developed by Thinking Machines. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1 Codex Max or Thinking Machines: Inkling?

It depends on your use case. GPT-5.1 Codex Max and Thinking Machines: Inkling each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 52 challenges so you can judge which fits your needs best.

How can I compare GPT-5.1 Codex Max and Thinking Machines: Inkling on Rival?

This page shows a side-by-side comparison of GPT-5.1 Codex Max and Thinking Machines: Inkling 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-5.1 Codex Max and Thinking Machines: Inkling?

GPT-5.1 Codex Max is developed by OpenAI while Thinking Machines: Inkling is developed by Thinking Machines. You can compare their actual outputs across 52 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.1 Codex Max or Thinking Machines: Inkling?

It depends on your use case. GPT-5.1 Codex Max and Thinking Machines: Inkling each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 52 challenges so you can judge which fits your needs best.

How can I compare GPT-5.1 Codex Max and Thinking Machines: Inkling on Rival?

This page shows a side-by-side comparison of GPT-5.1 Codex Max and Thinking Machines: Inkling 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-5.1 Codex Max vs Thinking Machines: Inkling: Which Is Better?

Updated Jul 2026

Our Verdict

GPT-5.1 Codex Max

Thinking Machines: Inkling

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call

API pricing

Cost per 1M tokens

GPT-5.1 Codex Max

Input

—

Output

—

Thinking Machines: Inkling

Input

$1.00

Output

$4.05

Writing DNA

Style Comparison

Similarity

55%

Thinking Machines: Inkling uses 3.9x more emoji

GPT-5.1 Codex Max

Thinking Machines: Inkling

60%Vocabulary57%

16wSentence Length19w

0.36Hedging0.30

2.3Bold5.0

4.2Lists2.7

0.00Emoji0.04

0.12Headings0.49

0.03Transitions0.06

Based on 13 + 27 text responses

Research

What we learned reading every model

GPT-5.1 Codex Max and Thinking Machines: Inkling 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

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GPT-5.1 Codex Max vs Llama 4 MaverickNew provider

GPT-5.1 Codex Max vs Claude Opus 4New provider

Updated Jul 2026

Our Verdict

GPT-5.1 Codex Max

Thinking Machines: Inkling

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call

API pricing

Cost per 1M tokens

GPT-5.1 Codex Max

Input

—

Output

—

Thinking Machines: Inkling

Input

$1.00

Output

$4.05

Writing DNA

Style Comparison

Similarity

55%

Thinking Machines: Inkling uses 3.9x more emoji

GPT-5.1 Codex Max

Thinking Machines: Inkling

60%Vocabulary57%

16wSentence Length19w

0.36Hedging0.30

2.3Bold5.0

4.2Lists2.7

0.00Emoji0.04

0.12Headings0.49

0.03Transitions0.06

Based on 13 + 27 text responses

Research

What we learned reading every model

GPT-5.1 Codex Max and Thinking Machines: Inkling 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-5.1 Codex Max vs MiniMax M3New provider

GPT-5.1 Codex Max vs Llama 4 MaverickNew provider

GPT-5.1 Codex Max vs Claude Opus 4New provider