Noometry

Model comparison

Seed 2.0 Pro vs Gemini 3.8 Flash

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 43.2 on the Noometry Index.

Last verified . 19 shared benchmarks.

Seed 2.0 Pro ByteDance Seed

43.2

Rank #96 Confirmed

Gemini 3.8 Flash Google

61.8

Rank #11 Confirmed

Summary

  • They share 19 benchmarks with published results for both. Seed 2.0 Pro scores higher in 1 category and Gemini 3.8 Flash in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.8 Flash leads 76.9 to 24.1.
  • The biggest single-benchmark swing is NYT Connections (extended): 28.4% for Seed 2.0 Pro and 97.4% for Gemini 3.8 Flash.
  • Seed 2.0 Pro is cheaper at $0.50 / $3 per million input/output tokens, against $0.75 / $3.75 for Gemini 3.8 Flash.
  • Gemini 3.8 Flash accepts more context: 1.05M tokens versus 256K.

Side by side

Seed 2.0 ProGemini 3.8 Flash
ProviderByteDance SeedGoogle
Noometry Index43.261.8
Released2026-02-142026-09-02
WeightsProprietaryProprietary
Context window256K1.05M
Max output128K66K
Input $ / M tokens$0.50$0.75
Output $ / M tokens$3$3.75
Results tracked2050

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Category by category

Coding Gemini 3.8 Flash leads

Seed 2.0 Pro: 43.5 (#86), Gemini 3.8 Flash: 59.2 (#15)

BenchmarkSeed 2.0 ProGemini 3.8 Flash
LMArena Coding14721510
DeepSWE—73.8%
FrontierCode—41.2%
CursorBench—39.6%
LMArena WebDev—1584
FrontierSWE—19.6%
SciCode—56.6%
WeirdML—84.8%
ALE-Bench—1,270

Agentic & Tool Use Not comparable

Seed 2.0 Pro: —, Gemini 3.8 Flash: 41.8 (#21)

BenchmarkSeed 2.0 ProGemini 3.8 Flash
APEX-Agents—64.3%
Remote Labor Index—5.8%
GDP.pdf—23.4%
Vending-Bench 2—5,094

Reasoning Gemini 3.8 Flash leads

Seed 2.0 Pro: 24.1 (#165), Gemini 3.8 Flash: 76.9 (#5)

BenchmarkSeed 2.0 ProGemini 3.8 Flash
NYT Connections (extended)28.4%97.4%
LMArena Hard Prompts14531508
ARC-AGI-2—89.2%
ARC-AGI-1—98.5%
CritPt—18.3%
Chess Puzzles—61%
Thematic Generalization57.1%—
Mystery Game Puzzles—47%
DTBench—95.7%
LMCA—52.9%
Surface Evolver Bench—76.9%
Epoch Capabilities Index—156.71

Math Gemini 3.8 Flash leads

Seed 2.0 Pro: 39.3 (#108), Gemini 3.8 Flash: 65.3 (#28)

BenchmarkSeed 2.0 ProGemini 3.8 Flash
LMArena Math14391528
FrontierMath (Tiers 1-3)—68.4%
FrontierMath Tier 4—22%
OTIS Mock AIME 2024-2025—98.9%
ProofBench—48%

Knowledge Gemini 3.8 Flash leads

Seed 2.0 Pro: 40.2 (#122), Gemini 3.8 Flash: 74.8 (#2)

BenchmarkSeed 2.0 ProGemini 3.8 Flash
LMArena Expert14401524
GPQA Diamond—95.4%
Humanity's Last Exam—44.5%
SimpleQA Verified—69.7%

Multimodal Too close to call

Seed 2.0 Pro: 41.5 (#35), Gemini 3.8 Flash: 40.7 (#45)

BenchmarkSeed 2.0 ProGemini 3.8 Flash
LMArena Vision12741314
Blueprint-Bench 2—38.6%
Furniture Assembly—31.7%

Multilingual Gemini 3.8 Flash leads

Seed 2.0 Pro: 54.5 (#39), Gemini 3.8 Flash: 58.0 (#5)

BenchmarkSeed 2.0 ProGemini 3.8 Flash
LMArena Non-English14411491
LMArena Chinese14891554
LMArena French14711498
LMArena German14421493
LMArena Japanese14081502
LMArena Korean14111459
LMArena Russian14491515
LMArena Spanish14601485

Instruction Following Gemini 3.8 Flash leads

Seed 2.0 Pro: 74.5 (#91), Gemini 3.8 Flash: 78.0 (#13)

BenchmarkSeed 2.0 ProGemini 3.8 Flash
LMArena Instruction Following14141490

Long Context Gemini 3.8 Flash leads

Seed 2.0 Pro: 43.6 (#90), Gemini 3.8 Flash: 46.3 (#24)

BenchmarkSeed 2.0 ProGemini 3.8 Flash
LMArena Longer Query14281508

Writing & Preference Gemini 3.8 Flash leads

Seed 2.0 Pro: 62.9 (#69), Gemini 3.8 Flash: 72.2 (#15)

BenchmarkSeed 2.0 ProGemini 3.8 Flash
LMArena Text14481499
LMArena Creative Writing14061492
LMArena Multi-Turn14411501
EQ-Bench Creative Writing—1748

Frequently asked questions

Is Seed 2.0 Pro better than Gemini 3.8 Flash?

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 43.2 on the Noometry Index.

Which is cheaper, Seed 2.0 Pro or Gemini 3.8 Flash?

Seed 2.0 Pro is cheaper. It lists at $0.50 per million input tokens and $3 per million output tokens; Gemini 3.8 Flash lists at $0.75 and $3.75.

Is Seed 2.0 Pro or Gemini 3.8 Flash better for coding?

Gemini 3.8 Flash scores higher on coding benchmarks: 59.2 versus 43.5 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.8 Flash does, with 1.05M tokens against 256K.

How many benchmarks do Seed 2.0 Pro and Gemini 3.8 Flash share?

19 benchmarks have published results for both models. Seed 2.0 Pro has 20 scored results on Noometry and Gemini 3.8 Flash has 50.

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