xAI

Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual accuracy. Reasoning can be configured between none/low/medium/high (default low) effort levels.

Input:

Output:

Input:

$1.25$0.875/1M

Output:

$2.5$1.75/1M

Context length:

1M

Max output:

1M

Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.

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Output:

Input:

$2$1.4/1M

Output:

$6$4.2/1M

Context length:

500K

Max output:

500K

Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.

Input:

Output:

Input:

$2$1.4/1M

Output:

$6$4.2/1M

Context length:

500K

Max output:

500K

Grok Build 0.1 is SpaceXAI’s fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding agents, tool use, and multi-step development tasks. The model powers SpaceXAI’s Grok Build CLI and features a 256K context window with no text output limit, making it well suited for long-horizon coding and automation workflows. Currently in early access.

Input:

Output:

Input:

$1$0.8/1M

Output:

$2$1.6/1M

Context length:

256K

Max output:

256K