DeepSeek V4.1 Flash
Open weightsDeepSeek · DeepSeek V4.1 Flash model for reasoning and agentic coding
Key facts
- Provider
- DeepSeek
- Context window
- 1M tokens
- Max output
- 384K tokens
- Input price
- $0.15 / M tok
- Output price
- $0.6 / M tok
- Knowledge cutoff
- May 2025
- Released
- Sep 10, 2026
- License
- Open weights
Capabilities
ReasoningTool callingStructured outputFile attachmentsTemperature controlOpen weights
Reasoning options
- toggle
- effort low · high · max
Pricing
USD per million tokens, list API rates.
- Input
- $0.15
- Output
- $0.6
- Cache read
- $0.003
- Cache write
- —
Modalities
- Input
- Text, Image
- Output
- Text