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DeepSeek · AI API · Model API

DeepSeek — V4.1 Flash API

DeepSeek's official deepseek-flash API now serves DeepSeek-V4.1-Flash-1017 with a 1M-token context window. Off-peak rates remain USD $0.15 per 1M uncached input tokens, $0.003 per 1M cached input tokens and $0.60 per 1M output tokens; weekday peak rates are double.

DEAL SCORE86Current-offer attractiveness
INPUT / 1M$0.15Native listed metric
OUTPUT / 1M$0.60Native listed metric
Pricing

Pricing details

Secondary price terms only; primary pricing stays in the deal summary.

CACHED / 1M$0.00When available
Fit & constraints

Fit & constraints

Use-case fit and limitations from the existing resource record.

KEY RISK

Peak/off-peak billing means effective cost depends on request timing; legacy aliases are transitional. Provider assertions about benchmark superiority are not used as a Compute Score.

AVAILABILITY

Available

Resource facts

Technical profile

Non-price resource facts only; pricing, history, and evidence stay in their own sections.

CONTEXT1M
AI MODELDeepSeek-V4.1-Flash-1017
Trust layer

Verified evidence

Decision visuals remain traceable to the existing source and verification record.

Verified
EvidenceOfficial

Independent ranking · native prices · evidence-linked · commercial relationships isolated from scoring and publication.