Grok 4.5 vs gpt-3.5-turbo

xAI Grok 4.5OpenAI gpt-3.5-turbo
VendorxAIOpenAI
Context window500,00016,385
Max output2,000,0004,096
ReasoningYesNo
Tool callingYesNo
File inputYesNo
Inputtext, imagetext
Outputtexttext
Released2026-07-082023-03-01