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
Kimi K3
Doubao Deepseek V4 Flash 0731 vs Kimi K3
Compare Doubao Deepseek V4 Flash 0731 from DeepSeek and Kimi K3 from Moonshot AI 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 0731Kimi K3+ Add model · 2/4
Kimi K3
Moonshot AI · text, image, video → text
Kimi K3 is Kimi’s flagship model for long-horizon coding and end-to-end knowledge work, with a 1M-token context window and industry-leading intelligence.
Input$3.00 /M
Output$15.00 /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
Kimi K3
Input /M
$0.42
$3.00
Output /M
$1.27
$15.00
Cache read /M
$0.14
$0.30
Context length
1,000,000
1,048,576
Max output
384,000
1,048,576
Time to First Token
1.0 s
0.9 s
Throughput
82.6 tok/s
73.1 tok/s
Modalities
text
textimagevideo
Supported Parameters
toolsfunction callingstructured outputsthinking
thinkingfunction callingstructured outputs
API Formats
chat_completions · claude_api
Released
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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-0731kimi-k3
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-0731kimi-k3
Throughput (tok/s)
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TTFT (s)
-
Uptime (%)
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Cost calculator
Estimate your monthly bill for the same workload on each model.
Doubao Deepseek V4 Flash 0731
$44.37 /mo
Kimi K3
$405 /mo
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: Doubao Deepseek V4 Flash 0731, Kimi K3?
Doubao Deepseek V4 Flash 0731: $1.27/M output tokens; Kimi K3: $15.00/M. Use the cost calculator above to estimate your own workload.
Which responds faster?
Kimi K3: 0.9s 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 Kimi K3 accepts 1,048,576 input tokens. Maximum output per request is 384,000 tokens on Doubao Deepseek V4 Flash 0731 and 1,048,576 tokens on Kimi K3.
Which one generates tokens faster?
Doubao Deepseek V4 Flash 0731 at 82.6 tok/s and Kimi K3 at 73.1 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; Kimi K3 accepts text, image and video input and supports thinking, function calling and structured outputs.
Can I call Doubao Deepseek V4 Flash 0731 and Kimi K3 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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