AI model comparison

DeepSeek V4.1 Flash 1017 vs Qwen3.8 Flash

Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.

DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name.

Input / 1M
$0.15
Output / 1M
$0.60
Context
1.05M

Qwen3.8 Flash is a multimodal reasoning model from Alibaba.

Input / 1M
$0.15
Output / 1M
$0.47
Context
1M

Comparing image generators? Compare image models

At a glance

Quick verdict

How the two models stack up on the things people ask about most.

Lower price

qwen logo

Qwen3.8 Flash

1.1x cheaper for a typical chat

Higher intelligence score

Tie

Not enough benchmark data

Larger context window

deepseek logo

DeepSeek V4.1 Flash 1017

1.05M vs 1M tokens

Newer release

deepseek logo

DeepSeek V4.1 Flash 1017

Released October 17, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

deepseek logoDeepSeek V4.1 Flash 101739.5
qwen logoQwen3.8 FlashNot available

Coding index

deepseek logoDeepSeek V4.1 Flash 1017Not available
qwen logoQwen3.8 FlashNot available

Agentic index

deepseek logoDeepSeek V4.1 Flash 1017Not available
qwen logoQwen3.8 FlashNot available

Pricing

DeepSeek V4.1 Flash 1017 vs Qwen3.8 Flash API pricing

Per-token API rates. Cheaper option highlighted.

Metricdeepseek logoDeepSeek V4.1 Flash 1017qwen logoQwen3.8 Flash
Input tokensPer 1M tokens$0.15$0.15
Output tokensPer 1M tokens$0.60$0.47
Cached input (read)Per 1M tokens$0.00$0.02
Cache writePer 1M tokensNot availableNot available

What it costs in practice

Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.

Chat message

2K in, 500 out

deepseek logoDeepSeek V4.1 Flash 1017$0.60
qwen logoQwen3.8 Flash$0.54

Coding task

30K in, 4K out

deepseek logoDeepSeek V4.1 Flash 1017$6.90$2.49 cached
qwen logoQwen3.8 Flash$6.38$2.36 cached

Long document summary

150K in, 2K out

deepseek logoDeepSeek V4.1 Flash 1017$23.70$1.65 cached
qwen logoQwen3.8 Flash$23.44$3.34 cached

Specs

Context window and capabilities

How much each model can read, how much it can write, and what it accepts as input.

Metricdeepseek logoDeepSeek V4.1 Flash 1017qwen logoQwen3.8 Flash
Context window1.05M tokens1M tokens
Max output393K tokens131K tokens
Input typesImage, TextImage, Text, Video
Output typesTextText
Reasoning effort levelsMax, High, Low, NoneNot available
Default reasoning effortHighNot available
Release dateOctober 17, 2026August 26, 2026

Features

Supported features

API features available for each model.

Metricdeepseek logoDeepSeek V4.1 Flash 1017qwen logoQwen3.8 Flash
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedSupported
TemperatureSupportedSupported
Stop sequencesSupportedSupported
Deterministic seedSupportedSupported
Verbosity controlNot supportedNot supported

Our take

Qwen3.8 Flash is 1.1x cheaper for a typical chat. DeepSeek V4.1 Flash 1017 has the larger context window (1.05M vs 1M tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is DeepSeek V4.1 Flash 1017 or Qwen3.8 Flash cheaper?

Qwen3.8 Flash is cheaper for a typical chat (2K input tokens and 500 output tokens). Qwen3.8 Flash costs $0.15 per 1M input tokens and $0.47 per 1M output tokens, while DeepSeek V4.1 Flash 1017 costs $0.15 per 1M input tokens and $0.60 per 1M output tokens.

Which has a bigger context window, DeepSeek V4.1 Flash 1017 or Qwen3.8 Flash?

DeepSeek V4.1 Flash 1017 supports up to 1.05M tokens of context, compared with 1M for Qwen3.8 Flash.

Can I use DeepSeek V4.1 Flash 1017 and Qwen3.8 Flash at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see DeepSeek V4.1 Flash 1017 and Qwen3.8 Flash answer side by side and keep the better response.

deepseek logoqwen logo

Why choose? Ask both.

Send one prompt to DeepSeek V4.1 Flash 1017 and Qwen3.8 Flash at the same time. Compare the answers side by side and keep the best one.