Doubao Deepseek V4 Flash 0731
DeepSeek · text → text
DeepSeek-V4-Flash official API release. Agent capabilities have been greatly enhanced, and benchmark tests far surpass V4-Pro-Preview.
Input$0.42 /M
Output$1.27 /M
← ModelsDoubao Deepseek V4 Flash 0731
Qwen3.8 Max Preview
Doubao Deepseek V4 Flash 0731 vs Qwen3.8 Max Preview
Compare Doubao Deepseek V4 Flash 0731 from DeepSeek 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.
Doubao Deepseek V4 Flash 0731Qwen3.8 Max Preview+ Add model · 2/4
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$0.34 /M
Output$1.01 /M
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Doubao Deepseek V4 Flash 0731
Qwen3.8 Max Preview
Input /M
$0.42
$0.34
Output /M
$1.27
$1.01
Cache read /M
$0.14
$0.03
Context length
1,000,000
983,616
Max output
384,000
131,072
Time to First Token
1.0 s
2.4 s
Throughput
82.6 tok/s
48.1 tok/s
Modalities
text
textimage
Supported Parameters
toolsfunction callingstructured outputsthinking
toolsfunction callingstructured outputsweblong contextthinking
API Formats
chat_completions · claude_api
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-deepseek-v4-flash-0731qwen3.8-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-deepseek-v4-flash-0731qwen3.8-max-preview
Throughput (tok/s)
-
TTFT (s)
-
Uptime (%)
-
Cost calculator
Estimate your monthly bill for the same workload on each model.
Qwen3.8 Max Preview
$35.49 /mo
Doubao Deepseek V4 Flash 0731
$44.37 /mo
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: Doubao Deepseek V4 Flash 0731, Qwen3.8 Max Preview?
Qwen3.8 Max Preview: $1.01/M output tokens; Doubao Deepseek V4 Flash 0731: $1.27/M. Use the cost calculator above to estimate your own workload.
Which responds faster?
Doubao Deepseek V4 Flash 0731: 1.0s 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 Deepseek V4 Flash 0731 accepts 1,000,000 and Qwen3.8 Max Preview accepts 983,616 input tokens. Maximum output per request is 384,000 tokens on Doubao Deepseek V4 Flash 0731 and 131,072 tokens on Qwen3.8 Max Preview.
Which one generates tokens faster?
Doubao Deepseek V4 Flash 0731 at 82.6 tok/s and Qwen3.8 Max Preview at 48.1 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 Deepseek V4 Flash 0731 accepts text input and supports tool calling, function calling, structured outputs and thinking; 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 Deepseek V4 Flash 0731 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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