DeepSeek · text model

DeepSeek V4.1 Flash 1017

Name: DeepSeek V4.1 Flash 1017
Brand: DeepSeek
Price: 0.3000 USD

Not scored yet on overall. $0.93 per 1,000 support replies at list price.

Price checked 25 Oct 2026 via vendor

key_facts.txt

Released: 17 Oct 2026
Context window: 1M tokens
Longest reply: 393K tokens
Open weights: Yes
Reasoning mode: Yes
Tool use: Yes
Reads: text, image
Writes: text
Knowledge cutoff: 2025-05

scores.txt

Overall–

Writing–

Support–

Coding74

Value–

Provisional, 0 to 100 among the text models we track, from Arena and Epoch AI. How we score.

Prices and where to run it

Provider	Region	Input per 1M	Output per 1M	Cached input	Data retention	Checked
deepseek	global	$0.30	$1.20	$0.006	Not checked	25 Oct 2026, vendor
openrouter	global	$0.02	$1.00	$0.015	Not checked	25 Oct 2026, OpenRouter

Price history and a CSV download arrive with the open price dataset.

Benchmarks behind the scores

Measure	Figure	Run date	Source
Arena WebDev	1665	23 Oct 2026	Arena

call_it.sh

Call it through OpenRouter

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "deepseek/deepseek-v4.1-flash", "messages": [{"role": "user", "content": "Hello"}]}'

next.txt

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