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Doubao Seed 2.0 Pro

ByteDance Seed · 2026-02-14

Doubao Seed 2.0 Pro was the flagship general model in ByteDance's Seed2.0 series, publicly launched on February 14, 2026, for complex reasoning and long-horizon agent workflows. The hosted snapshot accepts text, image, and video input, produces text, supports switchable deep thinking and tool use, and Volcengine documents its context capacity only as a rounded 256k-token tier.

Benchmark scores

BenchmarkScore
BabyVision60.6
Buyout Game Bradley-Terry Rating1405
Capability149.9
Extended NYT Connections 940-Puzzle Set42.1
Extended NYT Connections Newest 10042.0
LisanBench Difficulty-Weighted457
LisanBench Path Length1753
LLM Creative Story Writing-1.5
LLM Creative Story Writing Win Probability0.3
LLM Debate Benchmark1489
LLM Persuasion Average Strength1.6
LLM Persuasion Target Susceptibility1.7
LLM Position Bias Decisive Pair Coverage83.4
LLM Position Bias First-Option Lift-1.9
LLM Position Bias First-Shown Pick Rate48.1
LLM Position Bias Order Flip Rate28.0
LLM Position Bias Rating Bonus0.0
LLM Sycophancy Conditional Rate25.5
LLM Sycophancy Conditional Total Inconsistency28.2
LLM Sycophancy Contrarian Rate1.5
LLM Sycophancy Decisive Coverage55.3
LLM Sycophancy Insufficient Answer Rate31.1
LLM Sycophancy Rate14.1
LLM Sycophancy Stripped Rate17.1
LLM Sycophancy Total Inconsistency15.6
MATH-Vision88.8
PACT Negotiation Average Profit per Round16.9
PACT Negotiation Bilateral Rating1491
PACT Negotiation CMS45.0
Thematic Generalization V277.0
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