How much does DeepSeek: DeepSeek V4.1 Flash cost per 1M tokens?

DeepSeek: DeepSeek V4.1 Flash costs $0.300 per 1M input tokens and $1.20 per 1M output tokens on the standard tier. Cached input is $0.006 per 1M.

What is DeepSeek: DeepSeek V4.1 Flash's context window?

DeepSeek: DeepSeek V4.1 Flash accepts up to 1,048,576 tokens in a single request, and can return up to 393,216 output tokens.

Is there a cheaper OpenRouter model than DeepSeek: DeepSeek V4.1 Flash?

Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.300 for DeepSeek: DeepSeek V4.1 Flash, with a 8,192 token context window.

Where does this DeepSeek: DeepSeek V4.1 Flash price come from?

From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

DeepSeek: DeepSeek V4.1 Flash pricing

DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. DeepSeek: DeepSeek V4.1 Flash from OpenRouter costs $0.300 per 1M input tokens and $1.20 per 1M output tokens. Cached input is $0.006 per 1M. Context window 1,048,576 tokens.

API id deepseek/deepseek-v4.1-flash · OpenRouter · source · updated 2026-09-25 · general-purpose

$0.300

Input / 1M tokens

$1.20

Output / 1M tokens

$0.006

Cached input / 1M

Context window

DeepSeek: DeepSeek V4.1 Flash specifications

Provider: OpenRouter
API id: deepseek/deepseek-v4.1-flash
Model type: general-purpose
Context window: 1M tokens
Max output: 393K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-09-25

DeepSeek V4.1 Flash across providers

The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.

Provider	Input /1M	Cached /1M	Output /1M	1M in + 1M out	vs vendor
DeepSeekVendorCheapest	$0.300	$0.006	$1.20	$1.50	—
OpenRouterHostviewing	$0.300	$0.006	$1.20	$1.50	—
Together AIHost	$0.300	$0.006	$1.20	$1.50	—

What DeepSeek: DeepSeek V4.1 Flash costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0009
Document summary	50,000	2,000	$0.02
1M tokens in, 200K out	1,000,000	200,000	$0.54

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

DeepSeek: DeepSeek V4.1 Flash price history

Recorded	Input /1M	Output /1M
2026-09-25	$0.300	$1.20
2026-09-24	$0.140	$0.420
2026-09-23	$0.059	$0.600
2026-09-21	$0.300	$1.20
2026-09-19	$0.150	$0.600
2026-09-11	$0.300	$1.20

Common questions

How much does DeepSeek: DeepSeek V4.1 Flash cost per 1M tokens?: DeepSeek: DeepSeek V4.1 Flash costs $0.300 per 1M input tokens and $1.20 per 1M output tokens on the standard tier. Cached input is $0.006 per 1M.
What is DeepSeek: DeepSeek V4.1 Flash's context window?: DeepSeek: DeepSeek V4.1 Flash accepts up to 1,048,576 tokens in a single request, and can return up to 393,216 output tokens.
Is there a cheaper OpenRouter model than DeepSeek: DeepSeek V4.1 Flash?: Yes. MythoMax 13B is $0.080 per 1M input tokens versus $0.300 for DeepSeek: DeepSeek V4.1 Flash, with a 8,192 token context window.
Where does this DeepSeek: DeepSeek V4.1 Flash price come from?: From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

Compare DeepSeek: DeepSeek V4.1 Flash with another model →

Other OpenRouter models

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