Models

DeepSeek V4 Flash vs Doubao Seed 1.6 Flash

Compare DeepSeek V4 Flash from DeepSeek and Doubao Seed 1.6 Flash 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 Flash
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 Flash
ByteDance · text, image, video → text

Doubao-Seed-1.6-flash is an extremely fast multimodal deep thinking model, with TPOT requiring only 10ms. It supports both text and visual understanding, with its text comprehension skills surpassing the previous generation lite model and its visual understanding on par with competitor's pro series models. It supports a 256k context window and an output length of up to 16k tokens.

Input$0.044 /M
Output$0.44 /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 Flash
Input /M
$0.142
$0.044
Output /M
$0.284
$0.44
Cache read /M
$0.0284
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Context length
1,000,000
256,000
Max output
384,000
33,000
Time to First Token
1.0 s
-
Throughput
66.5 tok/s
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Modalities
text
textimagevideo
Supported Parameters
toolsfunction callingstructured outputsthinking
thinkingtoolsfunction callingstructured outputs
API Formats
chat_completions · claude_api
Released
April 24, 2026
August 28, 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-flash

Tokens / day

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Requests / day

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Performance Past 3 Days

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

deepseek-v4-flashdoubao-seed-1-6-flash

Throughput (tok/s)

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TTFT (s)

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Uptime (%)

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Cost calculator

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

Doubao Seed 1.6 Flash
$9.24 /mo
DeepSeek V4 Flash
$12.78 /mo

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

FAQ

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

DeepSeek V4 Flash: $0.284/M output tokens; Doubao Seed 1.6 Flash: $0.44/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 Flash accepts 256,000 input tokens. Maximum output per request is 384,000 tokens on DeepSeek V4 Flash and 33,000 tokens on Doubao Seed 1.6 Flash.

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 Flash 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 Flash 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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