Doubao-Seed-2.0
ByteDance's agentic flagship in Pro, Lite, Mini, and Code tiers with 256K context.
About
Doubao-Seed-2.0 launched February 14, 2026 as ByteDance's first cross-generation flagship leap, positioned for multimodal agents. It ships in four tiers: Pro, Lite, Mini, and a specialized Code variant, all with 256K context, and powers the Doubao app with 155 million weekly active users in China.
ByteDance's vendor-reported figures put Seed 2.0 Pro at 98.3 on AIME 2025, a 3020 Codeforces rating, and 76.5% on SWE-Bench Verified, with aggressive pricing around $0.47/$2.37 per million input/output tokens. It is API-only via Volcano Engine Ark, with the Seed 2.1 successor arriving June 2026.
Specs
Context window
Pricing
Free quota
API access
Weights
Released
Benchmarks
Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.
Use cases
Trust score — 9/10
Scored 9/10 (verified tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 105; Trending score 86/100 from researcher assessment.