grok-4-20-reasoning · Grok
Grok 4.2 is xAI’s latest large language model, built for strong reasoning, multimodal understanding, and enterprise use. It improves instruction following, honesty, and calibration over earlier Grok versions, while supporting both single‑agent and multi‑agent workflows. Designed as a general‑purpose, truth‑seeking assistant, Grok 4.2 is well suited for research, analysis, coding, and complex professional tasks when deployed with appropriate guardrails.
Grok 4.2 is xAI’s latest large language model, built for strong reasoning, multimodal understanding, and enterprise use. It improves instruction following, honesty, and calibration over earlier Grok versions, while supporting both single‑agent and multi‑agent workflows. Designed as a general‑purpose, truth‑seeking assistant, Grok 4.2 is well suited for research, analysis, coding, and complex professional tasks when deployed with appropriate guardrails.
Grok 4 20 (reasoning) has a 1,000,000 token context window.
On AIHubMix, Grok 4 20 (reasoning) costs $2 per million input tokens and $6 per million output tokens. Cached input reads are billed at $0.2 per million tokens.
Grok 4 20 (reasoning) accepts text and image input.
Grok 4 20 (reasoning) supports thinking, tool calling, function calling and structured outputs. Per-protocol parameter support is listed in the capability table on this page.
Grok 4 20 (reasoning) is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to grok-4-20-reasoning — no other code changes needed.
Grok 4 20 (reasoning) is developed by Grok. AIHubMix aggregates it alongside models from other providers behind one API and one bill.
Grok 4 20 (reasoning) was released on March 9, 2026 by Grok.
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Use Grok 4 20 (reasoning) via the AIHubMix unified API — one interface for every major LLM.