GPT Image 2.5 Dev vs gemini-2.5-flash-lite

OpenAI GPT Image 2.5 DevGoogle gemini-2.5-flash-lite
VendorOpenAIGoogle
Context window—1,048,576
Max output—65,536
ReasoningNoYes
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image, audio, video, file
Outputimagetext
Released2026-09-082025-06-17