What is the difference between Claude Opus 5 and Thinking Machines: Inkling?

Claude Opus 5 is developed by Anthropic while Thinking Machines: Inkling is developed by Thinking Machines. Claude Opus 5 has a 1.0M token context window vs Thinking Machines: 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, Claude Opus 5 or Thinking Machines: Inkling?

It depends on your use case. Claude Opus 5 and Thinking Machines: 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 Claude Opus 5 cost compared to Thinking Machines: Inkling?

Claude Opus 5 costs $5/M input tokens and Thinking Machines: Inkling costs $1/M input tokens. Thinking Machines: Inkling is $4.00/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 Claude Opus 5 and Thinking Machines: Inkling on Rival?

This page shows a side-by-side comparison of Claude Opus 5 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 Claude Opus 5 and Thinking Machines: Inkling?

Claude Opus 5 is developed by Anthropic while Thinking Machines: Inkling is developed by Thinking Machines. Claude Opus 5 has a 1.0M token context window vs Thinking Machines: 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, Claude Opus 5 or Thinking Machines: Inkling?

It depends on your use case. Claude Opus 5 and Thinking Machines: 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 Claude Opus 5 cost compared to Thinking Machines: Inkling?

Claude Opus 5 costs $5/M input tokens and Thinking Machines: Inkling costs $1/M input tokens. Thinking Machines: Inkling is $4.00/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 Claude Opus 5 and Thinking Machines: Inkling on Rival?

This page shows a side-by-side comparison of Claude Opus 5 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.

Claude Opus 5 vs Thinking Machines: Inkling: Which Is Better?

Updated Jul 2026

Our Verdict

Claude Opus 5

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.

Thinking Machines: Inkling is 6.2x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude Opus 5

Input

$5.00

Output

$25.00

Thinking Machines: Inkling

Input

$1.00

5.0× cheaper

Output

$4.05

6.2× cheaper

Thinking Machines: Inkling is cheaper on both — 5.0× input, 6.2× output

Writing DNA

Style Comparison

Similarity

86%

Thinking Machines: Inkling uses 2.3x more emoji

Claude Opus 5

Thinking Machines: Inkling

54%Vocabulary57%

21wSentence Length19w

0.40Hedging0.30

3.9Bold5.0

1.9Lists2.7

0.02Emoji0.04

0.71Headings0.49

0.05Transitions0.06

Based on 27 + 27 text responses

Research

What we learned reading every model

Claude Opus 5 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

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Claude Opus 5 vs GPT-5New provider

Claude Opus 5 vs Llama 4 MaverickNew provider

Updated Jul 2026

Our Verdict

Claude Opus 5

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.

Thinking Machines: Inkling is 6.2x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

Claude Opus 5

Input

$5.00

Output

$25.00

Thinking Machines: Inkling

Input

$1.00

5.0× cheaper

Output

$4.05

6.2× cheaper

Thinking Machines: Inkling is cheaper on both — 5.0× input, 6.2× output

Writing DNA

Style Comparison

Similarity

86%

Thinking Machines: Inkling uses 2.3x more emoji

Claude Opus 5

Thinking Machines: Inkling

54%Vocabulary57%

21wSentence Length19w

0.40Hedging0.30

3.9Bold5.0

1.9Lists2.7

0.02Emoji0.04

0.71Headings0.49

0.05Transitions0.06

Based on 27 + 27 text responses

Research

What we learned reading every model

Claude Opus 5 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

Claude Opus 5 vs MiniMax M3New provider

Claude Opus 5 vs GPT-5New provider

Claude Opus 5 vs Llama 4 MaverickNew provider