xAI · Text
Grok 4.3
xAI's frontier Grok model with strong reasoning, coding, and agentic tool use, plus vision and real-time knowledge from X.
Grok 4.3 is a cloud text model built by xAI. It is multimodal: alongside a text prompt it accepts images, then replies with generated text. Its context window handles up to 256K input tokens and up to 66K output tokens. Generation can be tuned with system instructions, temperature, and top-p sampling. It runs through Runware using your own API key, from $3.00 per million input tokens.
Modality
Text
Available on
Runware
Model ID
xai/grok-4.3
Specs
- Pricing
- $3.00 / 1M in · $15.00 / 1M out
- Inputs
- Text, Images
- Context window
- 256K in · 66K out
- Controls
- System prompt, Temperature, Top-p
About the creator
xAI
xAI builds the Grok family — frontier reasoning LLMs plus Grok Imagine video and voice models, integrated with real-time knowledge from X.
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