DeepSeek V4.1 Flash is here: faster coding, native vision, and iolys compatibility
Use DeepSeek V4.1 Flash with iolys in Visual Studio: stronger coding capabilities, native vision, a 1M-token context window, and lower API costs than V4 Pro.
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iolys 2026 September Update 3: DeepSeek V4.1 Flash, drag and drop, and clearer permissions
Use DeepSeek V4.1 Flash, drop files into your chat, and see your permission mode more clearly with iolys 2026 September Update 3.
iolys 2026 September Update 1: custom agents and provider improvements
Reuse your own agents, get faster Codex responses, and search the web in chat with iolys 2026 September Update 1 for Visual Studio.
DeepSeek V4 Pro 0813 and V4 Flash Vision Exp are available in iolys
DeepSeek V4 Pro 0813 and Flash Vision Exp are now natively available in iolys for .NET developers, with a 1M-token context window and vision.
DeepSeek V4 Flash 0731 offers an exceptionally attractive price-to-speed ratio
DeepSeek V4 Flash 0731 combines speed, a 1M-token context window, and very low pricing. .NET developers can use it natively in iolys.