Qwen: Qwen3.8 27B vs ByteDance Seed: Seed 2.1 Turbo

For a sample job of 1 million input tokens and 250,000 output tokens, Seed 2.1 Turbo costs $1.12 and Qwen3.8 27B costs $1.17, so Seed 2.1 Turbo is slightly cheaper for the same work.

Qwen3.8 27B reads up to 1,000,000 tokens at once, roughly 1,500 pages of text, against about 393 pages for Seed 2.1 Turbo.

Across the 20 tasks where they differ, Qwen3.8 27B scores higher on 18 (SQL Generation, Code Review, Code Completion and others), Seed 2.1 Turbo on 2 (JSON Extraction, Bulk Data Labeling).

Pick Qwen3.8 27B if you need long documents or the stronger all-round task scores; pick Seed 2.1 Turbo if you need lower cost.

Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.