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Doubao Seed 2.0 Pro vs Qwen3.8 Max Preview

Compare Doubao Seed 2.0 Pro from ByteDance and Qwen3.8 Max Preview from Qwen on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

ByteDanceDoubao Seed 2.0 ProQwenQwen3.8 Max Preview
+ Add model · 2/4
ByteDance logo
Doubao Seed 2.0 Pro
ByteDance · text, image, video → text

Doubao flagship all-purpose general model, targeting complex reasoning and long-chain task execution scenarios in the Agent era. It emphasizes multimodal understanding, long-context reasoning, structured generation, and tool-augmented execution. It excels at handling complex instructions and multi-constraint execution, reliably addressing multi-step complex planning, intricate image-text reasoning, video content understanding, and high-difficulty analysis scenarios.

Input$0.4822 /M
Output$2.411 /M
Cache read$0.0964 /M
Details
Qwen logo
Qwen3.8 Max Preview
Qwen · text, image → text

Qwen 3.8 Max Preview(Qwen3.8-Max-Preview) is the latest-generation foundation model in the Qwen family, packing 2.4T parameters and still evolving. Compared with the previous flagship Qwen 3.7 Max, it delivers major gains in core capabilities like Coding and Cowork (professional productivity), with world-leading performance on complex, long-horizon tasks such as full-stack development, data analysis, and Office workflows. Launch offer: Credits are consumed at just 20% of the standard rate, effectively 5× your usage. Limited time only.

Input$0.338 /M
Output$1.014 /M
Cache read$0.0338 /M
Details

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Doubao Seed 2.0 Pro
Qwen3.8 Max Preview
Input /M
$0.4822
$0.338
Output /M
$2.411
$1.014
Cache read /M
$0.0964
$0.0338
Context length
256,000
983,616
Max output
128,000
131,072
Time to First Token
7.5 s
2.4 s
Throughput
24.9 tok/s
48.1 tok/s
Modalities
textimagevideo
textimage
Supported Parameters
thinkingwebtoolsfunction callingstructured outputs
toolsfunction callingstructured outputsweblong contextthinking
API Formats
Released
-
-

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

doubao-seed-2-0-proqwen3.8-max-preview

Tokens / day

-

Requests / day

-

Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

doubao-seed-2-0-proqwen3.8-max-preview

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

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LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
doubao-seed-2-0-proqwen3.8-max-preview
1380144015001560
Overall
14551480
Coding
15111520
Math
14501497
Hard prompts
14791502
Instruction following
14341477
Multi-turn
14451493
Creative writing
14031466
Longer query
14521492
Chinese
15021536
English
14621488
Vision
doubao-seed-2-0-proqwen3.8-max-preview
1240128013201360
Overall
12591300
OCR
12701315
Diagram
12881326
Homework
12801334

Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.

Cost calculator

Estimate your monthly bill for the same workload on each model.

Qwen3.8 Max Preview
$35.49 /mo
Doubao Seed 2.0 Pro
$65.10 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: Doubao Seed 2.0 Pro, Qwen3.8 Max Preview?

Qwen3.8 Max Preview: $1.014/M output tokens; Doubao Seed 2.0 Pro: $2.411/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Qwen3.8 Max Preview: 1520; Doubao Seed 2.0 Pro: 1511 (LMArena coding leaderboard).

Which responds faster?

Qwen3.8 Max Preview: 2.4s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.

How large is each context window?

Doubao Seed 2.0 Pro accepts 256,000 and Qwen3.8 Max Preview accepts 983,616 input tokens. Maximum output per request is 128,000 tokens on Doubao Seed 2.0 Pro and 131,072 tokens on Qwen3.8 Max Preview.

Which one generates tokens faster?

Qwen3.8 Max Preview at 48.1 tok/s and Doubao Seed 2.0 Pro at 24.9 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

Doubao Seed 2.0 Pro accepts text, image and video input and supports thinking, web search, tool calling, function calling and structured outputs; Qwen3.8 Max Preview accepts text and image input and supports tool calling, function calling, structured outputs, web search, long context and thinking.

Can I call Doubao Seed 2.0 Pro and Qwen3.8 Max Preview with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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