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DeepSeek V4.1 Flash

API pricing per million tokens

deepseek-v4-1-flash Open weightsChecked 5h ago
Input
$0.15
per 1M, list
Output
$0.6
per 1M tokens
Cached input
$0.003
batch $0.112 / $0.336
Context
1M
131K max output

Price history

$0.3Sep 23, 2026Output $0.6Input $0.15

List price since Sep 23, 2026, from daily reads of the OpenRouter catalog.

SeenModelChange
Sep 24, 2026DeepSeek V4.1 FlashInput $0.15 to $0.3, Output $0.6 to $1.2, Cached input $0.003 to $0.006+100%
Sep 24, 2026DeepSeek V4.1 FlashInput $0.15 to $0.3, Output $0.6 to $1.2, Cached input $0.015 to $0.03 on qwen+100%
Sep 24, 2026DeepSeek V4.1 FlashInput $0.285 to $0.225, Output $1.14 to $0.9, Cached input $0.0057 to $0.0045 on gmicloud/fp8-21%
Sep 24, 2026DeepSeek V4.1 FlashInput $0.15 to $0.199, Output $0.6 to $0.794, Cached input $0.003 to $0.004 on streamlake/fp8+32%
Sep 24, 2026DeepSeek V4.1 FlashInput $0.169 to $0.099 on wafer-41%

Through a gateway

Your own numbers

100M input and 20M output tokens a month: $27.00 direct.

Related models

About DeepSeek V4.1 Flash

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.

Takes text, image in and returns text. First listed Sep 23, 2026. Blended price $0.262 per 1M tokens at 3 input to 1 output. Overall score 3 on leadersboard.fru.dev (rank 33).

Across fru.devCompany profile

Questions

How much does DeepSeek V4.1 Flash cost?

$0.15 per million input tokens and $0.6 per million output tokens, with cached input at $0.003, or $0.112 and $0.336 through the Batch API.

What is the context window of DeepSeek V4.1 Flash?

1M tokens, with up to 131K tokens of output.

Where is DeepSeek V4.1 Flash cheapest?

Of 25 routes tracked, Relace is cheapest at $0.05 input and $0.25 output per million tokens.

Has DeepSeek V4.1 Flash's price changed?

Yes. The output price went from $0.6 to $1.2, first seen Sep 24, 2026.

List prices from providers' pages on the date shown; your contract may differ. Logos via logo.dev; trademarks belong to their owners.

Weekly: LLM API list prices that changed, Thursday mornings.