the chart
DeepSeek

DeepSeek V4.1 Flash 1017

deepseek/deepseek-v4.1-flash-1017

Holders first until 2026-10-24

about 0.08¢ a message

A typical message: about 500 tokens you send and 500 it writes.

$0.33 per 1M tokens you send$1.32 per 1M tokens it writesreads 1M tokens at once

Published capabilitiesreads imagestool callingjson schema
Chat with DeepSeek V4.1 Flash 1017Call it from codeLock this price

About

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. V4.1 Flash is a sparse mixture-of-experts model...

In DeepSeek's words.

Try it here

Whatever it says appears here.

Published facts

What the upstream's catalog says about this world, with its price as billed here.

Context window
1,048,576 tokens
Longest answer
393,216 tokens
Input, per 1M tokens
$0.33upstream $0.30
Output, per 1M tokens
$1.32upstream $1.20
Cached input, per 1M
$0.0066upstream $0.006
Margin
+10%
Reads
text and images
First listed
2026-10-17

Price and latency history as JSON: GET /api/planet/history?id=deepseek/deepseek-v4.1-flash-1017.

Measured here

Price

it writes $1.32 you send $0.33max $1.32
2026-10-17: you send $0.165, it writes $0.662026-10-19: you send $0.33, it writes $1.32
2026-10-17now
The price per 1M tokens as billed here: each rate the upstream published, as this deployment observed it, with today's markup applied where the operator set one. First seen 2026-10-17, 1 change since. Nothing before the first observation is shown, because nothing before it was seen.
Price observations, USD per 1M tokens
ObservedYou sendIt writesCache readCache write
2026-10-17$0.165$0.66$0.0033unpublished
2026-10-19$0.33$1.32$0.0066unpublished

Call it

One OpenAI compatible endpoint, this model's id, and an am_live_ key from the dashboard. Or try it in chat first, no key needed.

curl https://useantimatter.com/v1/chat/completions \
  -H "Authorization: Bearer $ANTIMATTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "deepseek/deepseek-v4.1-flash-1017", "messages": [{"role": "user", "content": "Hello"}]}'

Everything else is in the docs.

Embed this

A badge with this world's live price per million tokens, as billed here, for a README or a site. It links back to this page.

DeepSeek V4.1 Flash 1017 price on Antimatter
<a href="https://useantimatter.com/planet/deepseek/deepseek-v4.1-flash-1017"><img src="https://useantimatter.com/api/badge/price?id=deepseek%2Fdeepseek-v4.1-flash-1017" alt="DeepSeek V4.1 Flash 1017 price on Antimatter" height="28"></a>

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