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ByteDance · API-only (closed weights)

Doubao-Seed-1.6

Doubao-Seed-1.6 is an API-only (closed weights) language model from ByteDance, released June 11, 2025. Its makers disclosed about 230B parameters.

Seed1.6 is the latest general-purpose model series unveiled by the ByteDance Seed team. It incorporates multimodal capabilities, supporting adaptive deep thinking, multimodal understanding, GUI-based interaction, and deep reasoning with a 256K context window.

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Lab
ByteDance
Released
June 11, 2025
Weights
API-only (closed weights)
Parameters
230B disclosed
Context
–
Price / M tokens
–
Epoch ECI
not yet rated

Benchmark results

Epoch AI has not published results for Doubao-Seed-1.6 yet. New models are usually evaluated within days to weeks.

Links

Announcement

More from ByteDance

Cola2 · Doubao Seed 2.1 Turbo · Doubao Seed 2.1 Pro · Doubao Seed Evolving (Nov 2026) · Doubao Seed 2.0 Lite (Apr 2026) · Doubao-Seed-2.0 Pro · Doubao Seed 2.0 Code · Doubao Seed 2.0 Mini

Data updated Thu, 12 Nov 2026 09:42 UTC. Benchmarks, Capabilities Index and model announcements: Epoch AI, “Capabilities & benchmarking” and “Data on AI models” (CC BY 4.0); category scores are ModelTape's own fit on Epoch's results. Releases and prices: models.dev (MIT). Sizes and quantizations: Hugging Face. “Runs on” figures are estimates from model size, quantization and memory bandwidth (±30–50%).
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