GPT-5-nano model ID, context window & pricing
gpt-nano
Quick facts
Model ID openai/gpt-5-nano
Source Poe
Context Window 400000
Pricing $0.04 input / $0.36 output per 1M tokens
Capabilities tool calling, reasoning
Model overview
GPT-5-nano is an AI model from Poe with 400000 token context window and text, image input support.
Published pricing is $0.04 input and $0.36 output per 1M tokens.
- Workloads that use text, image inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID openai/gpt-5-nano
Provider Poe
Family gpt-nano
Status -
Knowledge Cutoff -
Release Date 2025-08-05
Input Modalities text, image
Output Modalities text
Context Window 400000
Input Limit -
Output Limit 128000
Tool Calling Yes
Reasoning Yes
Structured Output -
Temperature Control No
Open Weights No
Input Cost / 1M tokens $0.04
Output Cost / 1M tokens $0.36
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.00
Cache Write Cost / 1M tokens -