grok 4.2 Blog

What is Grok 4.2: Features, Architecture and Comparisons
Mar 19, 2026
grok 4.2

What is Grok 4.2: Features, Architecture and Comparisons

Grok 4.2 is xAI’s public-beta flagship in the Grok 4 family: a multi-agent, tool-enabled generation model with industry-leading throughput, a giant 2,000,000-token agent mode context window, and specialized API variants such as grok-4.20-multi-agent-beta-0309, grok-4.20-beta-0309-reasoning, and grok-4.20-beta-0309-non-reasoning. It’s optimized for fast, agentic workflows (real-time X data / tool calling), is available in Web, iOS/Android and early API channels eg CometAPI, and is aimed at users needing fast, live-data aware assistants rather than the deepest long-form reasoning.
Mar 19, 2026
grok 4.2

How to Use Grok 4.2 API in 2026

Grok 4.2 is xAI’s latest multi-agent reasoning model that combines four cooperating agents and new agentic tool-calling features to deliver much faster, lower-hallucination inference for enterprise workloads. To call it today most developers either (a) use the official xAI REST/gRPC endpoints or (b) call it through an aggregator like CometAPI (single REST endpoint,post https://api.cometapi.com/v1/responsess) which simplifies keys, billing, and multi-model switching.
Grok 4.2: what will it bring and Why It Matters in AI in 2026
Mar 27, 2026
grok 4.2

Grok 4.2: what will it bring and Why It Matters in AI in 2026

Grok 4.2, a sophisticated iteration of Elon Musk’s flagship model. Unlike its predecessors, Grok 4.2 has arrived through a series of "stealth checkpoints"—mysterious model variants appearing on leaderboards under codenames like *Obsidian, Vortex Shade, and Quantum Crow.