DeepSeek V4.1 Flash

Available

The current Flash API name, presently serving DeepSeek-V4.1-Flash.

Access details: DeepSeek API

Undated identifier · Identity and lifecycle apply to this exact identifier and serving surface.

deepseek-flash

Source check: Sep 13, 2026

Sources & notes →

Capabilities & limits

Context window: 1M
Maximum output: 384K
Image input: Supported
Tool calling: Supported
Structured output: Supported

Documented interfaces and limits. These are not measures of model quality.

Pricing

USD / 1M tokens

See the full rate card for captured prices and billing conditions.

USD per million standard text tokens. Detailed cache, batch and other pricing conditions appear in the rate card.

Full rate card 6 rates

Amounts in USD. Check the unit and conditions on each rate.

Cache-hit input, off-peak

$0.003 per 1M tokens

Off-peak: all times outside 01:00-04:00 and 06:00-10:00 UTC, Monday-Friday

Cache-hit input, peak

$0.006 per 1M tokens

Peak: 01:00-04:00 and 06:00-10:00 UTC, Monday-Friday

Cache-miss input, off-peak

$0.15 per 1M tokens

Off-peak: all times outside 01:00-04:00 and 06:00-10:00 UTC, Monday-Friday

Cache-miss input, peak

$0.30 per 1M tokens

Peak: 01:00-04:00 and 06:00-10:00 UTC, Monday-Friday

Output, off-peak

$0.60 per 1M tokens

Off-peak: all times outside 01:00-04:00 and 06:00-10:00 UTC, Monday-Friday

Output, peak

$1.20 per 1M tokens

Peak: 01:00-04:00 and 06:00-10:00 UTC, Monday-Friday

Current Flash peak/off-peak schedule.

Price history

Observed Sep 13, 2026

Input Not verified per million tokens

Not verified. These sources establish the identifier, not this missing fact.

Observed Sep 13, 2026

Output Not verified per million tokens

Not verified. These sources establish the identifier, not this missing fact.

Technical details

Technical details have not been verified for this identifier.

6 details not verified

Parameters
Active parameters
Architecture
Training / knowledge cutoff
Input modalities
Output modalities

From DeepSeek

Official announcement link: not verified yet.

How they describe it

Provider quote not captured yet.

What they say is different

Provider quote not captured yet.

Verbatim provider claims · not an independent assessment

Release & lifecycle

Availability applies to this exact identifier on DeepSeek API.

First API availability: Not verified
available: Observed Sep 13, 2026