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Seed 2.1 Pro Preview

ByteDanceUnpriced

Score basis

Seed 2.1 Pro Preview is at the frontier in multimodal tasks, capable in agentic tasks, and behind the leaders in coding and reasoning. Too few results yet to rate safety, long context, math, multilingual tasks, instruction following, or factuality.

Capability profile

Bars show the model's median result as a share of the leading model's, per capability. Select a row to see its results.

Frontier1 capability
  1. Multimodal−2.7%4 of 6
Capable1 capability
  1. Agentic−21.4%4 of 7
Limited2 capabilities
  1. Coding−26.4%4 of 10
  2. Reasoning−29.7%2 of 6
Not rated6 capabilities

Too few results yet to rate Safety, Long Context, Math, Multilingual, Instruction Following or Factuality.

Price

No current price is tracked for this model. See the rate card

Evidence

66results on63benchmarks

  • 1 independently verified
  • 65 vendor-reported

From 4 sources · latest Oct 7, 2026 · How verification works

Seed 2.1 Pro Preview benchmark results

66 results on 63 benchmarks, grouped by capability. Each bar is the result as a share of the capability leader's; every result links to its source.

Multimodal

FrontierFull multimodal ranking

2.7% behind the leader4 of 6 ranked benchmarks measured

Show 3 more multimodal resultsHide 3 multimodal results

Agentic

CapableFull agentic ranking

21.4% behind the leader4 of 7 ranked benchmarks measured

Show 1 more agentic resultHide 1 agentic result

Coding

LimitedFull coding ranking

26.4% behind the leader4 of 10 ranked benchmarks measured

Reasoning

LimitedFull reasoning ranking

29.7% behind the leader2 of 6 ranked benchmarks measured

More results

Benchmarks outside the capability baskets. They are not ranked against a leader.

Show 42 more resultsHide 42 results

Seed 2.1 Pro Preview: common questions

Who makes Seed 2.1 Pro Preview?

Seed 2.1 Pro Preview is made by ByteDance.

What is Seed 2.1 Pro Preview good at?

Seed 2.1 Pro Preview is at the frontier in multimodal tasks, capable in agentic tasks, and behind the leaders in coding and reasoning. Too few results yet to rate safety, long context, math, multilingual tasks, instruction following, or factuality.

How many benchmarks has Seed 2.1 Pro Preview been tested on?

We track 66 results for Seed 2.1 Pro Preview on 63 benchmarks from 4 sources, 1 of them independently verified. The latest was recorded on Oct 7, 2026.

About this record

Where Seed 2.1 Pro Preview's numbers come from, and every name it appears under.

Tracked since
Jun 24, 2026
Newest source mention
Sep 26, 2026

Where the results come from

Verification: 66 scores · 1 independently verified · 65 vendor-reported. How these tiers are assigned

From 4 sources on 3 sites. api.llm-stats.com supplies 53 of them; the 1 independently verified result comes from 1 site. Bars are coloured by trust tier.

  • api.llm-stats.com53
  • lf3-static.bytednsdoc.com12
  • datasets-server.huggingface.co1

Also known as

seed-2.1 proseed2.1 pro