Models

DeepSeek V4 Flash vs Doubao Seed 1.6

Compare DeepSeek V4 Flash from DeepSeek and Doubao Seed 1.6 from ByteDance on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

DeepSeekDeepSeek V4 FlashByteDanceDoubao Seed 1.6
DeepSeek logo
DeepSeek V4 Flash
DeepSeek · text → text

(This model currently points to the older 0423 version; if you need to request the latest version, you can choose the model deepseek-v4-flash-0731)DeepSeek-V4 features an ultra-long context of one million characters and achieves leading performance domestically and in the open-source domain in agent capabilities, world knowledge, and reasoning.

Input$0.142 /M
Output$0.284 /M
Cache read$0.0284 /M
ByteDance logo
Doubao Seed 1.6
ByteDance · text, image, video → text

Doubao-Seed-1.6 is a brand new multimodal deep reasoning model that supports four types of reasoning effort: minimal, low, medium, and high. It offers stronger model performance, serving complex tasks and challenging scenarios. It supports a 256k context window, with output length up to a maximum of 32k tokens.

Input$0.18 /M
Output$1.8 /M

Pricing & Specifications

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

DeepSeek V4 Flash
Doubao Seed 1.6
Input /M
$0.142
$0.18
Output /M
$0.284
$1.8
Cache read /M
$0.0284
-
Context length
1,000,000
256,000
Max output
384,000
32,000
Time to First Token
1.0 s
-
Throughput
66.9 tok/s
-
Modalities
text
textimagevideo
Supported Parameters
toolsfunction callingstructured outputsthinking
thinkingtoolsfunction callingstructured outputs
API Formats
chat_completions · claude_api
Released
April 24, 2026
October 15, 2025

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.

deepseek-v4-flashdoubao-seed-1-6

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

deepseek-v4-flashdoubao-seed-1-6

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

Cost calculator

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

DeepSeek V4 Flash
$12.78 /mo
Doubao Seed 1.6
$37.80 /mo

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

FAQ

Which is cheaper: DeepSeek V4 Flash, Doubao Seed 1.6?

DeepSeek V4 Flash: $0.284/M output tokens; Doubao Seed 1.6: $1.8/M. Use the cost calculator above to estimate your own workload.

How large is each context window?

DeepSeek V4 Flash accepts 1,000,000 and Doubao Seed 1.6 accepts 256,000 input tokens. Maximum output per request is 384,000 tokens on DeepSeek V4 Flash and 32,000 tokens on Doubao Seed 1.6.

What inputs and capabilities does each model support?

DeepSeek V4 Flash accepts text input and supports tool calling, function calling, structured outputs and thinking; Doubao Seed 1.6 accepts text, image and video input and supports thinking, tool calling, function calling and structured outputs.

Can I call DeepSeek V4 Flash and Doubao Seed 1.6 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.

Popular comparisons

Related model match-ups readers also look at.