GPT-5.5 Pro is a OpenAI model tracked in Zoen. It supports a 1.05M token context window. Pricing starts at $30/1M input tokens and $180/1M output tokens. Key capabilities include Tool choice, Structured outputs, Reasoning medium, high, xhigh.
GPT-5.5 is a OpenAI model tracked in Zoen. It supports a 1.05M token context window. Pricing starts at $5/1M input tokens and $30/1M output tokens. Key capabilities include Tool choice, Structured outputs, Reasoning none, low, medium, high, xhigh.
GPT-5.6 Sol is a OpenAI model tracked in Zoen. It supports a 1.05M token context window. Pricing starts at $5/1M input tokens and $30/1M output tokens. Key capabilities include Tool choice, Structured outputs, Reasoning none, low, medium, high, xhigh, max.
When each model was first publicly available.
gpt-4.1
gpt-4.1-mini
gpt-4.1-nano
gpt-5.6-sol
gpt-5.6-terra
gpt-5.6-luna
gpt-5.5-pro
gpt-5.5
gpt-5.4-pro
gpt-5.4
gpt-5.4-mini
gpt-5.4-nano
gpt-5.2-pro
gpt-5.2
gpt-5.1
gpt-5-pro
gpt-5
gpt-5-mini
gpt-5-nano
gpt-5-chat-latest
o4-mini
o3-pro
o3
o3-mini
o1
gpt-4o
Anthropic's Claude models
Google's Gemini models
DeepSeek's chat models
xAI's Grok models
Zoen currently tracks 26 OpenAI models including GPT-4.1, GPT-4.1 Mini, GPT-4.1 Nano, GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Luna, and more.
GPT-4.1 is the default OpenAI model in Zoen.
GPT-5 Nano currently has the lowest listed input price at $0.05/1M tokens.
GPT-5.6 Sol currently has the largest listed context window at 1.05M tokens.
All OpenAI models in Zoen support tool use and function calling, allowing agents to invoke external APIs, query databases, and run custom actions.