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DeepSeek

DeepSeek V4.1 Flash

Announced Sep 10, 2026

Native visual understanding

01

What could it do?

DeepSeek released a new Flash architecture with image understanding.

02

What changed?

Replaced earlier Flash API versions.

WHY IT MATTERED

Added visual tasks.

03

Where it fell short

Aliases may point to newer models.

Sources checked Oct 7, 2026

Release facts were checked against the sources below. Performance claims belong to the developers; we have not independently tested these models.

Developer announcement or release log

Benchmark results

EPOCH AI CAPABILITY ESTIMATE
154.9index points
Tested variant: DeepSeek V4.1 FlashSource interval: 148.5 to 157.3Variant date in source: Sep 9, 2026

A benchmark estimate, not a percentage or capability multiplier. Reasoning settings are not specified in this source table. Historical estimates can change in later snapshots.

Epoch AI methodology ↗Download the source snapshotChecked Oct 7, 2026 · CC BY 4.0
PUBLISHED BENCHMARK RESULT
39.0index points
Tested: DeepSeek V4.1 Flash (max)Intelligence Index v4.3.2

Selected highest effort variant where available in the current table. Starred partial results are excluded. Claude fallback configurations can use other models when safeguards intervene.

Source: Artificial Analysis Intelligence Index ↗Download selected resultsChecked Oct 8, 2026
PUBLISHED BENCHMARK RESULT
1475rating points
Tested: deepseek-v4.1-flash-maxText Arena Overall · October 8, 2026Reported interval: 1468 to 148210,872 votes

One explicitly named variant per release. Scores come from the same Overall snapshot; preliminary entries and reported intervals are preserved. These are current ratings of earlier variants, not their launch day ratings.

Source: Text Arena ↗Download selected resultsChecked Oct 8, 2026
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