What is the difference between GPT-5.6 Luna Pro and Inkling?

GPT-5.6 Luna Pro is developed by OpenAI while Inkling is developed by Thinking Machines. GPT-5.6 Luna Pro has a 1.1M token context window vs Inkling's 1.0M. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.6 Luna Pro or Inkling?

It depends on your use case. GPT-5.6 Luna Pro and Inkling each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does GPT-5.6 Luna Pro cost compared to Inkling?

GPT-5.6 Luna Pro costs $1/M input tokens and Inkling costs $1/M input tokens. Inkling is $0.00/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-5.6 Luna Pro and Inkling on Rival?

This page shows a side-by-side comparison of GPT-5.6 Luna Pro and 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-5.6 Luna Pro and Inkling?

GPT-5.6 Luna Pro is developed by OpenAI while Inkling is developed by Thinking Machines. GPT-5.6 Luna Pro has a 1.1M token context window vs Inkling's 1.0M. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.6 Luna Pro or Inkling?

It depends on your use case. GPT-5.6 Luna Pro and Inkling each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does GPT-5.6 Luna Pro cost compared to Inkling?

GPT-5.6 Luna Pro costs $1/M input tokens and Inkling costs $1/M input tokens. Inkling is $0.00/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-5.6 Luna Pro and Inkling on Rival?

This page shows a side-by-side comparison of GPT-5.6 Luna Pro and 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-5.6 Luna Pro vs Inkling: Which Is Better?

Updated Jul 2026

Our Verdict

GPT-5.6 Luna Pro

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

What do GPT-5.6 Luna Pro and Inkling 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-5.6 Luna Pro

Input

$1.00

Output

$6.00

Inkling

Input

$1.00

Output

$4.05

1.5× cheaper

Writing DNA

Style Comparison

Similarity

45%

GPT-5.6 Luna Pro uses 13.9x more emoji

GPT-5.6 Luna Pro

Inkling

58%Vocabulary57%

18wSentence Length19w

0.81Hedging0.30

2.9Bold5.0

5.1Lists2.7

0.54Emoji0.04

1.10Headings0.49

0.09Transitions0.06

Based on 27 + 27 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.6 Luna Pro vs MiniMax M3New provider

Inkling vs GPT-5Cross-provider

GPT-5.6 Luna Pro vs Llama 4 MaverickNew provider

Updated Jul 2026

Our Verdict

GPT-5.6 Luna Pro

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

What do GPT-5.6 Luna Pro and Inkling 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-5.6 Luna Pro

Input

$1.00

Output

$6.00

Inkling

Input

$1.00

Output

$4.05

1.5× cheaper

Writing DNA

Style Comparison

Similarity

45%

GPT-5.6 Luna Pro uses 13.9x more emoji

GPT-5.6 Luna Pro

Inkling

58%Vocabulary57%

18wSentence Length19w

0.81Hedging0.30

2.9Bold5.0

5.1Lists2.7

0.54Emoji0.04

1.10Headings0.49

0.09Transitions0.06

Based on 27 + 27 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.6 Luna Pro vs MiniMax M3New provider

Inkling vs GPT-5Cross-provider

GPT-5.6 Luna Pro vs Llama 4 MaverickNew provider