gpt-3.5-turbo-16k vs DeepSeek V4.1 Flash

OpenAI gpt-3.5-turbo-16kDeepSeek DeepSeek V4.1 Flash
VendorOpenAIDeepSeek
Context window16,3851,040,000
Max output4,096384,000
ReasoningNoYes
Tool callingYesYes
File inputNoYes
Inputtexttext
Outputtexttext
Released—2026-09-10