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Initial research 2026-09-21DeepSeekReleased 2026-09-10
DeepSeek-V4.1-Flash
Inspect the documented capabilities, access conditions and sources for your task.
Initial research: 2026-09-21. Check current terms before choosing.
Updated
The facts
- Version
- 4.1 Flash
- Price
- Price not verified. Open the tool record for the available pricing sources.
- API
✓Supported - Open weights
✓Supported - Commercial use
- yes
- Long context
?Not verified Context size not verified on a fetched page
Source for Long context (opens in a new tab)- Tool use
?Not verified Not verified
Source for Tool use (opens in a new tab)- Vision input
✓Supported Described as a native-multimodal model; 552B-parameter MoE with reduced memory requirements
Source for Vision input (opens in a new tab)- Extended thinking
?Not verified Not verified
Source for Extended thinking (opens in a new tab)
Sources
Beyond feature support
Quality evidence.
How well a model performs depends on the task, version, and settings.
We have not published a reviewed quality evaluation for these versions yet. Feature support and price do not establish output quality.
Try the same small task with each option. Check accuracy, consistency, and how much editing you need to get a usable result.