---
name: Grok 4.20 (Reasoning)
slug: grok-4-20
type: LLM
providers:
  - venice
  - azure
  - vercel
  - merge-gateway
  - xai
  - nano-gpt
  - openrouter
description: 'Grok model for agentic tool use, reasoning, coding, and live assistance'
tags:
  - reasoning
  - grok
  - llm
  - tool-use
is_open_source: false
context_window: 2000000
max_output: 2000000
pricing:
  - image: 0
    input: 2
    output: 6
    provider: azure
  - image: 0
    input: 1.25
    output: 2.5
    provider: merge-gateway
  - image: 0
    input: 2
    output: 6
    provider: nano-gpt
  - image: 0
    input: 1.25
    output: 2.5
    provider: openrouter
  - image: 0
    input: 1.42
    output: 2.83
    provider: venice
  - image: 0
    input: 1.25
    output: 2.5
    provider: vercel
  - image: 0
    input: 1.25
    output: 2.5
    provider: xai
release_date: '2026-04-08'
openrouter_id: x-ai/grok-4.20
capabilities:
  audio: false
  vision: true
  tool_use: true
  citations: false
  reasoning: true
---
Grok 4.20 (Reasoning) is a LLM model.
Grok model for agentic tool use, reasoning, coding, and live assistance