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xAI model

Grok Code Fast 1

Grok Code Fast 1 is a xAI model tracked in Sim. It supports a 256k token context window. Pricing starts at $1/1M input tokens and $2/1M output tokens. Key capabilities include Temperature 0-2, Tool choice, Structured outputs.

Build with this modelAll xAI models
Input price$1/1M
Cached input$0.2/1M
Output price$2/1M
Context window256k
Max outputNot published
ProviderxAI
UpdatedJun 11, 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 tokensNot published
xAI

Grok 4.1 Fast Reasoning

Grok 4.1 Fast Reasoning is a xAI model tracked in Sim. It supports a 1M token context window. Pricing starts at $1.25/1M input tokens and $2.5/1M output tokens. Key capabilities include Temperature 0-2, Tool choice, Structured outputs.

xAI

Grok 4.1 Fast Non Reasoning

Grok 4.1 Fast Non Reasoning is a xAI model tracked in Sim. It supports a 1M token context window. Pricing starts at $1.25/1M input tokens and $2.5/1M output tokens. Key capabilities include Temperature 0-2, Tool choice, Structured outputs.

xAI

Grok 4 Fast Reasoning

Grok 4 Fast Reasoning is a xAI model tracked in Sim. It supports a 1M token context window. Pricing starts at $1.25/1M input tokens and $2.5/1M output tokens. Key capabilities include Temperature 0-2, Tool choice, Structured outputs.

Frequently asked questions

Grok Code Fast 1 is a xAI model available in Sim. Grok Code Fast 1 is a xAI model tracked in Sim. It supports a 256k token context window. Pricing starts at $1/1M input tokens and $2/1M output tokens. Key capabilities include Temperature 0-2, Tool choice, Structured outputs.

Grok Code Fast 1 is listed at $1/1M input tokens, $0.2/1M cached input tokens, and $2/1M output tokens.

Grok Code Fast 1 supports a context window of 256k 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.

Grok Code Fast 1 supports the following capabilities in Sim: Temperature 0-2, Tool choice, Structured outputs.