Grok 4.20
by xAItext+image+file->text4 endpoints
Overview
Grok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...
Capabilities
Text generation
Image understanding
Tool use / Function calling
Structured output
Extended reasoning
Prompt caching
Long context
File input
Top-P sampling
Deterministic seed
Log probabilities
Modalities
Input
TextImageFile
Output
Text
Technical Specifications
Context Window
2M tokens
Knowledge Cutoff
2025-09-01
Tokenizer
Grok
Uptime (24h)
9998.8%
Supported Parameters
include_reasoninglogprobsmax_tokensreasoningresponse_formatseedstructured_outputstemperaturetool_choicetoolstop_logprobstop_p