Noometry

Model comparison

Seed 2.0 Pro vs GPT-6 Sol

GPT-6 Sol is the stronger model overall, scoring 49.2 to 42.5 on the Noometry Index. Seed 2.0 Pro costs 3.6× less per token, which makes it the better buy when GPT-6 Sol's lead doesn't matter for your workload.

Last verified . 14 shared benchmarks.

Seed 2.0 Pro ByteDance Seed

42.5

Rank #97 Confirmed

GPT-6 Sol OpenAI

49.2

Rank #46 Confirmed

Summary

  • They share 14 benchmarks with published results for both. Seed 2.0 Pro scores higher in 4 categories and GPT-6 Sol in 5 categories; 6 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-6 Sol leads 49.3 to 23.1.
  • The biggest single-benchmark swing is NYT Connections (extended): 28.4% for Seed 2.0 Pro and 90.1% for GPT-6 Sol.
  • Seed 2.0 Pro is cheaper at $0.50 / $3 per million input/output tokens, against $2 / $10 for GPT-6 Sol.
  • GPT-6 Sol accepts more context: 1.05M tokens versus 256K.

Side by side

Seed 2.0 ProGPT-6 Sol
ProviderByteDance SeedOpenAI
Noometry Index42.549.2
Released2026-02-142026-09-22
WeightsProprietaryProprietary
Context window256K1.05M
Max output128K128K
Input $ / M tokens$0.50$2
Output $ / M tokens$3$10
Results tracked2022

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Category by category

Coding GPT-6 Sol leads

Seed 2.0 Pro: 42.9 (#84), GPT-6 Sol: 59.6 (#11)

BenchmarkSeed 2.0 ProGPT-6 Sol
LMArena Coding14721453
DeepSWE—68.8%
FrontierCode—49.3%
LMArena WebDev—1692

Agentic & Tool Use Not comparable

Seed 2.0 Pro: —, GPT-6 Sol: 33.5 (#49)

BenchmarkSeed 2.0 ProGPT-6 Sol
GDP.pdf—28%

Reasoning GPT-6 Sol leads

Seed 2.0 Pro: 23.1 (#167), GPT-6 Sol: 49.3 (#34)

BenchmarkSeed 2.0 ProGPT-6 Sol
NYT Connections (extended)28.4%90.1%
LMArena Hard Prompts14531420
Thematic Generalization57.1%—
EBR-Bench—53.3%

Math Too close to call

Seed 2.0 Pro: 36.5 (#110), GPT-6 Sol: 35.8 (#135)

BenchmarkSeed 2.0 ProGPT-6 Sol
LMArena Math14401404

Knowledge GPT-6 Sol leads

Seed 2.0 Pro: 39.6 (#119), GPT-6 Sol: 43.0 (#87)

BenchmarkSeed 2.0 ProGPT-6 Sol
LMArena Expert14401449
Vectara Hallucination Rate—6.5%

Multimodal GPT-6 Sol leads

Seed 2.0 Pro: 40.8 (#34), GPT-6 Sol: 47.6 (#9)

BenchmarkSeed 2.0 ProGPT-6 Sol
LMArena Vision1275—
Furniture Assembly—58.3%

Multilingual Seed 2.0 Pro leads

Seed 2.0 Pro: 54.8 (#37), GPT-6 Sol: 51.0 (#113)

BenchmarkSeed 2.0 ProGPT-6 Sol
LMArena Non-English14421389
LMArena Chinese14901416
LMArena Russian14501407
LMArena Spanish14601377
LMArena French1470—
LMArena German1443—
LMArena Japanese1408—
LMArena Korean1412—

Instruction Following Too close to call

Seed 2.0 Pro: 74.7 (#86), GPT-6 Sol: 74.4 (#97)

BenchmarkSeed 2.0 ProGPT-6 Sol
LMArena Instruction Following14141406

Long Context Too close to call

Seed 2.0 Pro: 43.6 (#85), GPT-6 Sol: 43.2 (#100)

BenchmarkSeed 2.0 ProGPT-6 Sol
LMArena Longer Query14281415

Writing & Preference GPT-6 Sol leads

Seed 2.0 Pro: 63.0 (#66), GPT-6 Sol: 72.3 (#15)

BenchmarkSeed 2.0 ProGPT-6 Sol
LMArena Text14481396
LMArena Creative Writing14061392
LMArena Multi-Turn14411405
EQ-Bench Creative Writing—2125

Frequently asked questions

Is Seed 2.0 Pro better than GPT-6 Sol?

GPT-6 Sol is the stronger model overall, scoring 49.2 to 42.5 on the Noometry Index. Seed 2.0 Pro costs 3.6× less per token, which makes it the better buy when GPT-6 Sol's lead doesn't matter for your workload.

Which is cheaper, Seed 2.0 Pro or GPT-6 Sol?

Seed 2.0 Pro is cheaper. It lists at $0.50 per million input tokens and $3 per million output tokens; GPT-6 Sol lists at $2 and $10.

Is Seed 2.0 Pro or GPT-6 Sol better for coding?

GPT-6 Sol scores higher on coding benchmarks: 59.6 versus 42.9 in the Noometry coding category.

Which has the bigger context window?

GPT-6 Sol does, with 1.05M tokens against 256K.

How many benchmarks do Seed 2.0 Pro and GPT-6 Sol share?

14 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and GPT-6 Sol has 22.

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