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DeepSeek V4.1 Flash vs DeepSeek V4.1 Flash 1017

Compare DeepSeek V4.1 Flash from DeepSeek and DeepSeek V4.1 Flash 1017 from DeepSeek on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

DeepSeekDeepSeek V4.1 FlashDeepSeekDeepSeek V4.1 Flash 1017
DeepSeek logo
DeepSeek V4.1 Flash
DeepSeek · text, image → text

DeepSeek-V4.1-Flash model official release. This is the smallest model in DeepSeek’s new model-architecture series, featuring native multimodal visual understanding capabilities. The new architecture is designed to deliver a higher capability ceiling, faster inference speeds, greater throughput, and scalability to larger-parameter models.

Input$0.1408 /M
Output$0.5632 /M
Cache read$0.0028 /M
30% off·Oct 19 – Oct 25 GMT+0
DeepSeek logo
DeepSeek V4.1 Flash 1017
DeepSeek · text, image → text

The official latest version of DeepSeek V4.1 Flash has been upgraded to DeepSeek-V4.1-Flash-1017. API usage and pricing remain unchanged—you can still access the latest model using deepseek-flash.

Input$0.155$0.1085 /M
Output$0.62$0.434 /M
Cache read$0.0031$0.0022 /M

Pricing & Specifications

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

DeepSeek V4.1 Flash
DeepSeek V4.1 Flash 1017
Input /M
$0.1408
$0.155$0.1085−30%
Output /M
$0.5632
$0.62$0.434−30%
Cache read /M
$0.0028
$0.0031$0.0022−30%
Context length
1,000,000
1,000,000
Max output
384,000
393,216
Time to First Token
0.4 s
1.7 s
Throughput
84.0 tok/s
125.5 tok/s
Modalities
textimage
textimage
Supported Parameters
toolsfunction callingstructured outputsthinking
API Formats
chat_completions · claude_api
Released
September 8, 2026
October 17, 2026

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-v4.1-flashdeepseek-v4.1-flash-1017

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-v4.1-flashdeepseek-v4.1-flash-1017

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.

DeepSeek V4.1 Flash 1017
$19$13.02 /mo
DeepSeek V4.1 Flash
$16.90 /mo

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

FAQ

Which is cheaper: DeepSeek V4.1 Flash, DeepSeek V4.1 Flash 1017?

DeepSeek V4.1 Flash 1017: $0.434/M output tokens; DeepSeek V4.1 Flash: $0.5632/M. Use the cost calculator above to estimate your own workload.

Which responds faster?

DeepSeek V4.1 Flash: 0.4s 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?

DeepSeek V4.1 Flash accepts 1,000,000 and DeepSeek V4.1 Flash 1017 accepts 1,000,000 input tokens. Maximum output per request is 384,000 tokens on DeepSeek V4.1 Flash and 393,216 tokens on DeepSeek V4.1 Flash 1017.

Which one generates tokens faster?

DeepSeek V4.1 Flash 1017 at 125.5 tok/s and DeepSeek V4.1 Flash at 84.0 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

DeepSeek V4.1 Flash accepts text and image input and supports tool calling, function calling, structured outputs and thinking; DeepSeek V4.1 Flash 1017 accepts text and image input.

Can I call DeepSeek V4.1 Flash and DeepSeek V4.1 Flash 1017 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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