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DeepSeek V4.1 Flash (Together)

DeepSeek V4.1 Flash (Together) is an open-weight model from DeepSeek, released September 10, 2026.

Release Date: Sep 10, 2026

Developer DeepSeek  🇨🇳
Context Window 1M
Max Output Tokens 262k
Token Costs (in/out) $0.30/1.20
Weights Open
Input Modalities

Accuracy

66.39 %

Avg. Cost (In/Out)

$ 0.30 / $ 1.20

Latency

13 min 54 s

Vals Index
BenchmarksAccuracyRankings
Vals Inference Provider Index

66.39%

±3.27
8/11
Proprietary BenchmarksAcademic BenchmarksIndustry Partners
Vals
Default Provider : DeepSeek
Temperature: 1
Top P: 1
Top K: Default
Max Output Tokens: 262,144
Reasoning Effort: max