Kilo GatewayxAI: Grok 4.20 model ID, context window & pricing
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Quick facts
Model ID x-ai/grok-4.20
Source Kilo Gateway
Context Window 2000000
Pricing $2.00 input / $6.00 output per 1M tokens
Capabilities tool calling, reasoning, temperature control
Model overview
xAI: Grok 4.20 is an AI model from Kilo Gateway with 2000000 token context window and image, pdf, text input support.
Published pricing is $2.00 input and $6.00 output per 1M tokens.
- Workloads that use image, pdf, text inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID x-ai/grok-4.20
Provider Kilo Gateway
Family -
Status -
Knowledge Cutoff -
Release Date 2026-03-31
Input Modalities image, pdf, text
Output Modalities text
Context Window 2000000
Input Limit -
Output Limit 2000000
Tool Calling Yes
Reasoning Yes
Structured Output -
Temperature Control Yes
Open Weights No
Input Cost / 1M tokens $2.00
Output Cost / 1M tokens $6.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.20
Cache Write Cost / 1M tokens -