How much does Chat Latest cost?

Chat Latest starts at $5/1M input tokens, $0.5/1M cached input tokens, and $30/1M output tokens.

What is the context window for Chat Latest?

Chat Latest supports a context window of 400k tokens in Sim. In an agent, this determines how much conversation history, tool outputs, and retrieved documents the model can hold in a single call.

What capabilities does Chat Latest support?

Chat Latest supports the following capabilities in Sim: Tool choice, Structured outputs, Max output 128k.

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OpenAI model

Chat Latest

Name: Chat Latest
Brand: OpenAI
SKU: chat-latest

Chat Latest is a OpenAI model tracked in Sim. It supports a 400k token context window. Pricing starts at $5/1M input tokens and $30/1M output tokens. Key capabilities include Tool choice, Structured outputs, Max output 128k.

Build with this model All OpenAI models

Input price$5/1M

Cached input$0.5/1M

Output price$30/1M

Context window400k

Max output128k tokens

ProviderOpenAI

UpdatedSep 14, 2026

TemperatureNot configurable

Reasoning effortNot supported

VerbosityNot supported

Thinking levelsNot supported

Structured outputsSupported

Tool choiceSupported

Computer useNot supported

Deep researchNot supported

Memory supportSupported

Max output tokens128k

Frequently asked questions

Chat Latest is a OpenAI model available in Sim. Chat Latest is a OpenAI model tracked in Sim. It supports a 400k token context window. Pricing starts at $5/1M input tokens and $30/1M output tokens. Key capabilities include Tool choice, Structured outputs, Max output 128k.