by DeepSeek

DeepSeek: DeepSeek V4.1 Flash 1017.

multimodal open weights datacenter 763B params 1M ctx
Cheapest input
$0.15/M
on OpenRouter
Cheapest output
$0.6/M
on DeepInfra
Hosted equiv.
~$0.22/hr
@ 100 tok/s on DeepInfra
Description

About DeepSeek: DeepSeek V4.1 Flash 1017.

A minor update to DeepSeek-V4.1-Flash, the same multimodal model that reads images and text and writes text, with weights under the MIT licence and a one million token context. DeepSeek says the update improves reasoning, coding, agent tasks and visual understanding, and also shortens task execution time and output length. It keeps the base model's architecture and download format, so existing serving setups for V4.1-Flash apply.

Context window

How much it can remember.

1M tokens ≈ 786,432 English words
4K 32K 128K 1M
Capabilities

What it can do.

· Vision input
· Audio input
· Video input
· Function calling
· Tool use
· JSON mode
✓ Streaming
· Fine-tuning