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OpenAI model

GPT-5 Chat Latest

GPT-5 Chat Latest is a OpenAI model tracked in Sim. It supports a 128k token context window. Pricing starts at $1.25/1M input tokens and $10/1M output tokens. Key capabilities include Temperature 0-2, Tool choice, Structured outputs.

Build with this modelAll OpenAI models
Input price$1.25/1M
Cached input$0.125/1M
Output price$10/1M
Context window128k
Max output16k tokens
ProviderOpenAI
UpdatedApr 1, 2026
Temperature0 to 2
Reasoning effortNot supported
VerbosityNot supported
Thinking levelsNot supported
Structured outputsSupported
Tool choiceSupported
Computer useNot supported
Deep researchNot supported
Memory supportSupported
Max output tokens16k
OpenAI

GPT-5.4 Pro

GPT-5.4 Pro is a OpenAI model tracked in Sim. 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.

OpenAI

GPT-5.4

GPT-5.4 is a OpenAI model tracked in Sim. It supports a 1.05M token context window. Pricing starts at $2.5/1M input tokens and $15/1M output tokens. Key capabilities include Tool choice, Structured outputs, Reasoning none, low, medium, high, xhigh.

OpenAI

GPT-5.4 Mini

GPT-5.4 Mini is a OpenAI model tracked in Sim. It supports a 400k token context window. Pricing starts at $0.75/1M input tokens and $4.5/1M output tokens. Key capabilities include Tool choice, Structured outputs, Reasoning none, low, medium, high, xhigh.

Frequently asked questions

GPT-5 Chat Latest is a OpenAI model available in Sim. GPT-5 Chat Latest is a OpenAI model tracked in Sim. It supports a 128k token context window. Pricing starts at $1.25/1M input tokens and $10/1M output tokens. Key capabilities include Temperature 0-2, Tool choice, Structured outputs.