What is the difference between GPT-5.6 Terra and Inkling?

GPT-5.6 Terra is developed by OpenAI while Inkling is developed by Thinking Machines. GPT-5.6 Terra 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 Terra or Inkling?

It depends on your use case. GPT-5.6 Terra 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 Terra cost compared to Inkling?

GPT-5.6 Terra costs $2.5/M input tokens and Inkling costs $1/M input tokens. Inkling 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-5.6 Terra and Inkling on Rival?

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

GPT-5.6 Terra is developed by OpenAI while Inkling is developed by Thinking Machines. GPT-5.6 Terra 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 Terra or Inkling?

It depends on your use case. GPT-5.6 Terra 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 Terra cost compared to Inkling?

GPT-5.6 Terra costs $2.5/M input tokens and Inkling costs $1/M input tokens. Inkling 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-5.6 Terra and Inkling on Rival?

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

Updated Jul 2026

Our Verdict

GPT-5.6 Terra

Inkling

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

Inkling is 3.7x cheaper per token — worth considering if cost matters.

Too close to call

What do GPT-5.6 Terra 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 Terra

Input

$2.50

Output

$15.00

Inkling

Input

$1.00

2.5× cheaper

Output

$4.05

3.7× cheaper

Inkling is cheaper on both — 2.5× input, 3.7× output

Writing DNA

Style Comparison

Similarity

42%

Inkling uses 3.9x more emoji

GPT-5.6 Terra

Inkling

57%Vocabulary57%

18wSentence Length19w

0.85Hedging0.30

2.8Bold5.0

4.6Lists2.7

0.00Emoji0.04

1.12Headings0.49

0.06Transitions0.06

Based on 27 + 27 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.6 Terra vs Ox AlphaNew provider

GPT-5.6 Terra vs MiniMax M3New provider

Inkling vs GPT-5Cross-provider

Updated Jul 2026

Our Verdict

GPT-5.6 Terra

Inkling

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

Inkling is 3.7x cheaper per token — worth considering if cost matters.

Too close to call

What do GPT-5.6 Terra 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 Terra

Input

$2.50

Output

$15.00

Inkling

Input

$1.00

2.5× cheaper

Output

$4.05

3.7× cheaper

Inkling is cheaper on both — 2.5× input, 3.7× output

Writing DNA

Style Comparison

Similarity

42%

Inkling uses 3.9x more emoji

GPT-5.6 Terra

Inkling

57%Vocabulary57%

18wSentence Length19w

0.85Hedging0.30

2.8Bold5.0

4.6Lists2.7

0.00Emoji0.04

1.12Headings0.49

0.06Transitions0.06

Based on 27 + 27 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.6 Terra vs Ox AlphaNew provider

GPT-5.6 Terra vs MiniMax M3New provider

Inkling vs GPT-5Cross-provider