Antimatter
DeepSeek

DeepSeek V4.1 Flash 1017 (batch)

deepseek/deepseek-v4.1-flash-1017:batch

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.

$0.0396 in · $0.3498 out per 1M tokens1M contextOct 17, 2026

about 0.02¢ a message

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

Chat with DeepSeek V4.1 Flash 1017 (batch)
Call it from codeLock this price

Also:DeepSeek V4.1 Flash

Spec sheet

Published facts from the catalog, billed prices and what we measured here. Anything not measured says so.

Price, billed here

Input, per 1M tokens
$0.0396provider $0.036
Output, per 1M tokens
$0.3498provider $0.318
Cached input, per 1M
$0.0033provider $0.003
Margin
+10%

Context and formats

Context window
1,048,576 tokens
Longest answer
943,718 tokens
Reads
text and images
Makes
text
First listed
2026-10-17

Measured here, last 7 days

First token, median
not measured
Answered without error
not measured

Tools and JSON

Tool calling
declaredthe provider's claim, not yet measured here
JSON output
declaredthe provider's claim, not yet measured here

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

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

The answer appears here.

Measured here

Call it

Use one OpenAI compatible endpoint, this model's id and an am_live_ key from the dashboard. You can also try it in chat first with no key.

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:batch", "messages": [{"role": "user", "content": "Hello"}]}'

Everything else is in the docs.

Embed this

A badge showing this model'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 (batch) price on Antimatter
<a href="https://useantimatter.com/planet/deepseek/deepseek-v4.1-flash-1017%3Abatch"><img src="https://useantimatter.com/api/badge/price?id=deepseek%2Fdeepseek-v4.1-flash-1017%3Abatch" alt="DeepSeek V4.1 Flash 1017 (batch) price on Antimatter" height="28"></a>

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