DeepSeek V4.1 Flash 1017
by Alibaba Token Plan (China) · family deepseek-flash · listed Oct 2026RTVW
October 17 update of DeepSeek V4.1 Flash with improved reasoning, coding, agentic tasks, and visual understanding
Current rates USD per 1M tokens
Inputfree
Outputfree
Cache readfree
Cache writefree
Against the market
On the record
- Model id
deepseek-v4.1-flash-1017- Context window
- 1M tokens
- Max output
- 384K tokens
- Input modalities
- text, image
- Output modalities
- text
- Reasoning
- yes
- Tool calls
- yes
- Open weights
- yes
- Knowledge cutoff
- May 2025
- Released
- 2026-10-17
- Last updated
- 2026-10-17
Back of the envelope
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