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Claude Opus 4.1 vs Seed 2.0 Lite

Compare Claude Opus 4.1 by Anthropic against Seed 2.0 Lite by ByteDance, context windows of 200K vs 262K, tested across 26 shared challenges. Updated March 2026.

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

Claude Opus 4.1 and Seed 2.0 Lite are both competitive models. Claude Opus 4.1 costs $15/M input tokens vs $0.25/M for Seed 2.0 Lite. Context windows: 200K vs 262K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4.1 and Seed 2.0 Lite

Claude Opus 4.1 is made by anthropic while Seed 2.0 Lite is from bytedance. Claude Opus 4.1 has a 200K token context window compared to Seed 2.0 Lite's 262K. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $0.25/M for Seed 2.0 Lite.

Our Verdict
Claude Opus 4.1
Claude Opus 4.1
Seed 2.0 Lite
Seed 2.0 LiteRunner-up

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

Seed 2.0 Lite is 38x cheaper per token — worth considering if cost matters.

Too close to call
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