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Model Timeline

Timeline of Grok 4.20

Every recorded change for this model by xAI, newest first. Back to the entity page →

3 events

Year

All years 2026

Category · events in the last 365 days

All categories Benchmarks4,947 Models2,231 Companies1,599 Research1,104 Releases1,019 Providers & pricing640 Datasets146 Frameworks136 Hardware43 Repositories10 Pricing2

Filtered to one entity. Show the whole atlas

Events per month · 2 months shown

Sept 20262 Mar 20261

Sept 2026 2

11 Sept 2026
Context window changed

ModelGrok 4.20xAI

Grok 4.20: context length changed from 2000000 to 1000000

Context window2M tokens→1M tokensxai

docs.x.ai

11 Sept 2026

Property changedModelGrok 4.20xAI

Grok 4.20: modalities input changed from ["image", "text"] to ["text", "image"]

Input modalitiesimage, text→text, imagexai

docs.x.ai

Mar 2026 1

31 Mar 2026
New modelModelGrok 4.20xAI
New model: Grok 4.20 (xAI)
openrouter
openrouter.ai

Showing up to 400 events. Narrow by year or category, or use the changes feed for cursor-paged history. Times are UTC.