Models / DeepSeek

DeepSeek V4.1 Flash

DeepSeek V4.1 · Released 2026-09-10

DeepSeek's 10 Sep 2026 Flash refresh: 552B MoE, 8B active on prefill and 16B on decode, native vision, 1M context, 384K max output. API id deepseek-flash. Official off-peak list is $0.15 / $0.60 per 1M tokens (cache-miss input / output); peak doubles. Retired V4-Flash aliases route here.

Current DeepSeek Flash API model for cheap multimodal and agent work. Prefer official pricing and architecture notes over vendor eval tables; AA rows land when the snapshot lists the slug.

Composite
Context1M
Input / 1M$0.15
Output / 1M$0.60
Knowledge cutoffunpublished
Statussolid
Not enough families covered yet.Add more benchmark rows for DeepSeek V4.1 Flash to see the family profile.
Editor's note
Recorded from DeepSeek's 10 Sep 2026 launch post, API pricing table, and Hugging Face model card (552B MoE, CED 8B/16B active, 1M context, MIT weights). Vendor Terminal-Bench / DeepSWE / AutomationBench figures stay off the ledger. No independent AA Intelligence Index or Vals Index row as of 12 Sep 2026.
Benchmark placements

Where DeepSeek V4.1 Flash places on each public benchmark source that publishes a row. Rank counts every model with a latest row in the same test — not a universal quality score.

No benchmark rows yet for DeepSeek V4.1 Flash.

Family context

The three highest-scoring models with pages in each capability family. Where DeepSeek V4.1 Flash shows up, it's highlighted.

Family coverage

A high composite that hides a weak family is a trap. These bars surface the families where this model hasn't been publicly tested, and where it leads.

No family coverage yet.
Price vs. performance
0255075100$0.10$0.30$1$3$10$30input USD / 1M tokens · log scale →← intelligence

Hover any dot for name, score, and input price. Keyboard: tab through the top twelve, or use the ranking below.

AnthropicOpenAIMistralAlibabaDeepSeekGoogleMoonshotMetaxAIMiniMaxZhipuXiaomiOtherMeituanCohereNVIDIA

Full benchmark ledger

Every catalog benchmark for DeepSeek V4.1 Flash. Scores link to the original source; gaps mean no public row exists yet.

0 sourced rows

0 of 37 catalog benchmarks have a sourced row for DeepSeek V4.1 Flash.

Changelog
  1. DeepSeek-V4.1-Flash GA. API id deepseek-flash. Off-peak list $0.15 / $0.60 per 1M tokens. V4-Flash aliases retire onto this model.
Sources