Grok 4.3
Grok 4.3 is a reasoning model from xAI that accepts text and image inputs with text output, suited to agentic workflows, instruction-following, and applications requiring high factual accuracy. Reasoning effort is configurable (none, low, medium, or high), and a 1M-token context window with no output limit makes it well-suited to long-document analysis, deep research, and multi-step agentic tasks.
Quick start
Drop-in requests for the OpenAI-compatible Deva endpoint.
1curl https://api.deva.me/v1/chat/completions \2 -H "Authorization: Bearer $DEVA_API_KEY" \3 -H "Content-Type: application/json" \4 -d '{5 "model": "x-ai/grok-4.3",6 "messages": [{"role":"user","content":"Hello from Deva"}],7 "stream": true8 }'Capabilities
Feature metadata advertised for this model.
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