OpenAI: GPT-5.2 Chat vs Google: Gemini 3.1 Flash Lite

Compare these two models side-by-side to help you make the best choice for your needs

OpenAI: GPT-5.2 Chat

Premium

Description

GPT-5.2 Chat (AKA Instant) is the fast, lightweight member of the 5.2 family, optimized for low-latency chat while retaining strong general intelligence. It uses adaptive reasoning to selectively “think” on...

Strengths

•Multimodal understanding with text and image support
•Large context window (128k tokens)

Best For

Image and document understanding

Google: Gemini 3.1 Flash Lite

Description

Gemini 3.1 Flash Lite is Google’s GA high-efficiency multimodal model optimized for low-latency, high-volume workloads. It supports text, image, video, audio, and PDF inputs, and is designed for lightweight agentic...

Strengths

•Multimodal understanding with text and image support
•Large context window (1049k tokens)

Best For

Image and document understanding

Feature	OpenAI: GPT-5.2 Chat	Google: Gemini 3.1 Flash Lite
Provider	OpenRouter	OpenRouter
Context Length	`128,000 tokens`	`1,048,576 tokens`
Input Price	`$1.75/M`	`$0.250/M`
Output Price	`$14.00/M`	`$1.50/M`
Vision Support	Yes	Yes
Higher cost	Yes	No
Capabilities	TextVision	TextVisionFast