All Models

Grok 4.20

grok Reasoning Tool Calling Attachments Structured Output

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...

Providers 2
Released Mar 12, 2026
Input Modalities text, image, pdf
Output Modalities text
Tarsk Use coding

Benchmarks

49.3
Intelligence Index
40.5
Coding Index

Available Providers (2)

Provider Model ID Input Cost Output Cost Context Max Output Docs
OpenRouter x-ai/grok-4.20 $1.25/MTok $2.50/MTok 2M 2M
Venice AI grok-4-20 $1.42/MTok $2.83/MTok 2M 128K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output