Model comparison

Seed 2.0 Pro vs o1

Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 40.9 on the Noometry Index.

Last verified . 18 shared benchmarks.

Seed 2.0 Pro ByteDance Seed

43.2

Rank #96 Confirmed

o1 OpenAI

40.9

Rank #143 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Seed 2.0 Pro scores higher in 4 categories and o1 in 5 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where Seed 2.0 Pro leads 62.9 to 55.6.
  • Seed 2.0 Pro is cheaper at $0.50 / $3 per million input/output tokens, against $15 / $60 for o1.
  • Seed 2.0 Pro accepts more context: 256K tokens versus 200K.

Side by side

Seed 2.0 Pro and o1 specifications
Seed 2.0 Proo1
ProviderByteDance SeedOpenAI
Noometry Index43.240.9
Released2026-02-142024-09-12
WeightsProprietaryProprietary
Context window256K200K
Max output128K100K
Input $ / M tokens$0.50$15
Output $ / M tokens$3$60
Results tracked2052

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Category by category

Coding o1 leads

Seed 2.0 Pro: 43.5 (#86), o1: 46.1 (#70)

Coding benchmarks
BenchmarkSeed 2.0 Proo1
LMArena Coding14721367
Aider Polyglot—61.7%
WeirdML—47.6%
LiveBench Coding—69.7%
CadEval—56%
HumanEval+—89%
MBPP+—80.2%

Agentic & Tool Use Not comparable

Seed 2.0 Pro: —, o1: 24.6 (#117)

Agentic & Tool Use benchmarks
BenchmarkSeed 2.0 Proo1
Cybench—10%
METR Time Horizons—51.1%

Reasoning o1 leads

Seed 2.0 Pro: 24.1 (#165), o1: 27.9 (#111)

Reasoning benchmarks
BenchmarkSeed 2.0 Proo1
LMArena Hard Prompts14531371
SimpleBench—41.7%
NYT Connections (extended)28.4%—
ARC-AGI-1—30.7%
Chess Puzzles—15%
EnigmaEval—5.7%
Thematic Generalization57.1%—
LiveBench Reasoning—91.6%
DTBench—74.7%
LiveBench Data Analysis—65.5%
LMCA—22.3%
Epoch Capabilities Index—141.91
LiveBench—75.7%

Math Seed 2.0 Pro leads

Seed 2.0 Pro: 39.3 (#108), o1: 36.1 (#175)

Math benchmarks
BenchmarkSeed 2.0 Proo1
LMArena Math14391388
FrontierMath (Tiers 1-3)—14.7%
OTIS Mock AIME 2024-2025—73.3%
LiveBench Math—80.3%
MATH Level 5—94.7%
FrontierMath (Feb 2025 set)—9.3%

Knowledge o1 leads

Seed 2.0 Pro: 40.2 (#122), o1: 41.5 (#110)

Knowledge benchmarks
BenchmarkSeed 2.0 Proo1
LMArena Expert14401361
GPQA Diamond—76.8%
Humanity's Last Exam—8%
SimpleQA Verified—41.1%
Confabulations—11.7%

Multimodal Seed 2.0 Pro leads

Seed 2.0 Pro: 41.5 (#35), o1: 34.2 (#93)

Multimodal benchmarks
BenchmarkSeed 2.0 Proo1
LMArena Vision12741168
GeoBench—80%
VPCT—37%
SpatialViz-Bench—41.4%

Multilingual Seed 2.0 Pro leads

Seed 2.0 Pro: 54.5 (#39), o1: 48.6 (#142)

Multilingual benchmarks
BenchmarkSeed 2.0 Proo1
LMArena Non-English14411358
LMArena Chinese14891394
LMArena French14711344
LMArena German14421337
LMArena Japanese14081346
LMArena Korean14111396
LMArena Russian14491356
LMArena Spanish14601345

Instruction Following Too close to call

Seed 2.0 Pro: 74.5 (#91), o1: 74.8 (#86)

Instruction Following benchmarks
BenchmarkSeed 2.0 Proo1
LMArena Instruction Following14141367
LiveBench Instruction Following—81.5%

Long Context o1 leads

Seed 2.0 Pro: 43.6 (#90), o1: 50.3 (#9)

Long Context benchmarks
BenchmarkSeed 2.0 Proo1
LMArena Longer Query14281378
Fiction.LiveBench—83.3%

Writing & Preference Seed 2.0 Pro leads

Seed 2.0 Pro: 62.9 (#69), o1: 55.6 (#144)

Writing & Preference benchmarks
BenchmarkSeed 2.0 Proo1
LMArena Text14481366
LMArena Creative Writing14061348
LMArena Multi-Turn14411369
Short-Story Creative Writing—70.2%
LiveBench Language—65.4%

Frequently asked questions

Is Seed 2.0 Pro better than o1?

Seed 2.0 Pro is the stronger model overall, scoring 43.2 to 40.9 on the Noometry Index.

Which is cheaper, Seed 2.0 Pro or o1?

Seed 2.0 Pro is cheaper. It lists at $0.50 per million input tokens and $3 per million output tokens; o1 lists at $15 and $60.

Is Seed 2.0 Pro or o1 better for coding?

o1 scores higher on coding benchmarks: 46.1 versus 43.5 in the Noometry coding category.

Which has the bigger context window?

Seed 2.0 Pro does, with 256K tokens against 200K.

How many benchmarks do Seed 2.0 Pro and o1 share?

18 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and o1 has 52.

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