Is Grok Code Fast 1 available on FastMetal?

Not at the moment. Grok 4.5, from the same lab, is available on the FastMetal API today.

What is the context window of Grok Code Fast 1?

256,000 tokens, shared between the prompt and the response.

How does Grok Code Fast 1 rank?

#125 on the public arena's Overall board (ELO 1,165). Ranks move as the leaderboard is updated.

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x-ai/grok-code-fast-1

Not Available

Grok Code Fast 1

Grok Code Fast 1 is a speedy and economical reasoning model that excels at agentic coding. With reasoning traces visible in the response, developers can steer Grok Code for high-quality work flows.

8/26/2025

256,000 tokens

#125 Code (Overall)

Specifications

Modalities

Input

text

Output

text

Supported Parameters

include_reasoning

logprobs

max_tokens

reasoning

response_format

seed

stop

structured_outputs

temperature

tool_choice

tools

top_logprobs

top_p

Max Output Tokens

10,000

Frequently asked questions

Is Grok Code Fast 1 available on FastMetal?: Not at the moment. Grok 4.5, from the same lab, is available on the FastMetal API today.
What is the context window of Grok Code Fast 1?: 256,000 tokens, shared between the prompt and the response.
How does Grok Code Fast 1 rank?: #125 on the public arena's Overall board (ELO 1,165). Ranks move as the leaderboard is updated.

Leaderboard

Code

OverallELO: 1,165

#125

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