GPT 5.2 Chat by NanoGPT — Specs, Pricing & Capabilities | whichllm

Model ID openai/gpt-5.2-chat

Provider NanoGPT

Family gpt

Status -

Knowledge Cutoff -

Release Date 2026-01-01

Input Modalities text, image

Output Modalities text

Context Window 400000

Input Limit 400000

Output Limit 16384

Tool Calling No

Reasoning Yes

Structured Output No

Temperature Control -

Open Weights No

Input Cost / 1M tokens $1.75

Output Cost / 1M tokens $14.00

Reasoning Cost / 1M tokens -

Cache Read Cost / 1M tokens -

Cache Write Cost / 1M tokens -