Grok 4.20

xAI · Released Mar 10, 2026

Input price / MTok

Output price / MTok

Context window

Summary

Grok 4.20 is a proprietary language model from xAI, released on Mar 10, 2026.

At $2 input and $6 output per million tokens, it ranks #26 of 40 for input price, placing it mid-range on input cost.

Its context window of 2M tokens ranks #3 of 41 for context depth in this dataset.

It targets reasoning, agents, long-context workloads.

4-agent collaborative architecture (Grok/coordinator, Harper/research, Benjamin/math & code, Lucas/synthesis); integrates real-time X data. Architecture confirmed in xAI official docs.

No independently verified benchmark scores are available for this model. Scores are only shown when independently confirmed with a source URL.

Technical specs

xAI