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DeepSeek

DeepSeek V4.1 Flash

DeepSeek's low-cost flagship chat model with vision. Shown at the peak-hours rate (01:00-04:00 and 06:00-10:00 UTC, Mon-Fri); off-peak is half price ($0.15 / $0.60).

USD per 1M output tokens

$1.20

input
$0.30
output
$1.20
Verified Oct 4, 2026

#6 cheapest of 25 in Large language models

Official pricing ↗

Capabilities, explained

What this API can do, and what each capability means for your project.

Input price

$0.3

Cost of the text, images and files you send to the model.

Context window

1,000K tokens

How much text the model can read at once. 200K tokens ≈ a 500-page book.

Max output

384K tokens

Longest single response the model can write.

Input types

text, image

What kinds of input the model understands besides text.

Tool use / function calling

Yes

The model can request calls to your functions/APIs with structured arguments, the basis of agents.

Guaranteed JSON output

Yes

The API can force the response to match a JSON schema you provide.

Extended reasoning

Yes

The model can 'think' step by step before answering, improving hard math/coding at extra cost and latency.

Open weights

Yes

The model weights are downloadable, so you can self-host it or switch hosting providers without changing models.

Typical latency

—

How long until the first useful output arrives. Lower is better for interactive apps; batch jobs rarely care.

Price history

Only one price recorded so far. The chart appears once the price changes.