What is the difference between Claude Opus 4.1 and Seed 2.0 Code?

Claude Opus 4.1 is developed by Anthropic while Seed 2.0 Code is developed by ByteDance. Claude Opus 4.1 has a 200K token context window vs Seed 2.0 Code's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 4.1 or Seed 2.0 Code?

It depends on your use case. Claude Opus 4.1 and Seed 2.0 Code 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 Claude Opus 4.1 cost compared to Seed 2.0 Code?

Claude Opus 4.1 costs $15/M input tokens and Seed 2.0 Code costs $0.5/M input tokens. Seed 2.0 Code is $14.50/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 Claude Opus 4.1 and Seed 2.0 Code on Rival?

This page shows a side-by-side comparison of Claude Opus 4.1 and Seed 2.0 Code 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 4.1 and Seed 2.0 Code?

Claude Opus 4.1 is developed by Anthropic while Seed 2.0 Code is developed by ByteDance. Claude Opus 4.1 has a 200K token context window vs Seed 2.0 Code's 262K. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, Claude Opus 4.1 or Seed 2.0 Code?

It depends on your use case. Claude Opus 4.1 and Seed 2.0 Code 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 Claude Opus 4.1 cost compared to Seed 2.0 Code?

Claude Opus 4.1 costs $15/M input tokens and Seed 2.0 Code costs $0.5/M input tokens. Seed 2.0 Code is $14.50/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 Claude Opus 4.1 and Seed 2.0 Code on Rival?

This page shows a side-by-side comparison of Claude Opus 4.1 and Seed 2.0 Code 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 4.1 vs Seed 2.0 Code: Which Is Better?

Updated Aug 2026

Our Verdict

Claude Opus 4.1

Seed 2.0 CodeRunner-up

No community votes yet. On paper, Claude Opus 4.1 has the edge — bigger model tier, major provider backing.

Seed 2.0 Code is 25x cheaper per token — worth considering if cost matters.

Too close to call

What do Claude Opus 4.1 and Seed 2.0 Code say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude Opus 4.1

Input

$15.00

Output

$75.00

Seed 2.0 Code

Input

$0.50

30× cheaper

Output

$3.00

25× cheaper

Seed 2.0 Code is cheaper on both — 30× input, 25× output

Writing DNA

Style Comparison

Similarity

60%

Claude Opus 4.1 uses 38.4x more emoji

Claude Opus 4.1

Seed 2.0 Code

61%Vocabulary56%

87wSentence Length33w

0.54Hedging0.24

5.1Bold3.1

6.7Lists3.0

0.38Emoji0.00

1.68Headings1.66

0.13Transitions0.03

Based on 17 + 27 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Seed 2.0 Code vs MiniMax M3New provider

Seed 2.0 Code vs GPT-5New provider

Seed 2.0 Code vs Llama 4 MaverickNew provider

Updated Aug 2026

Our Verdict

Claude Opus 4.1

Seed 2.0 CodeRunner-up

No community votes yet. On paper, Claude Opus 4.1 has the edge — bigger model tier, major provider backing.

Seed 2.0 Code is 25x cheaper per token — worth considering if cost matters.

Too close to call

What do Claude Opus 4.1 and Seed 2.0 Code say about your brand?

10 models, one question, verbatim receipts.

or peek at a demo: Notion Linear Vercel

API pricing

Cost per 1M tokens

Claude Opus 4.1

Input

$15.00

Output

$75.00

Seed 2.0 Code

Input

$0.50

30× cheaper

Output

$3.00

25× cheaper

Seed 2.0 Code is cheaper on both — 30× input, 25× output

Writing DNA

Style Comparison

Similarity

60%

Claude Opus 4.1 uses 38.4x more emoji

Claude Opus 4.1

Seed 2.0 Code

61%Vocabulary56%

87wSentence Length33w

0.54Hedging0.24

5.1Bold3.1

6.7Lists3.0

0.38Emoji0.00

1.68Headings1.66

0.13Transitions0.03

Based on 17 + 27 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Seed 2.0 Code vs MiniMax M3New provider

Seed 2.0 Code vs GPT-5New provider

Seed 2.0 Code vs Llama 4 MaverickNew provider