> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apiyi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Grok 4.6 Is Live at Official Pricing, 20% Off on the GrokOfficial Group

> xAI's new flagship, shipped 7 August, is live as grok-4.6. It reuses Grok 4.5's 1.5T-parameter foundation and lifts the Artificial Analysis Intelligence Index from 56 to 61 through post-training alone, level with GPT-5.6 Sol Max. Listed at $2/$6 per 1M tokens matching xAI, with the GrokOfficial group at 0.8x and top-up bonuses bringing input as low as $1.33.

**2026/8/13 00:46 (UTC+8)** · New Model · xAI

🚀 **`grok-4.6` is live at xAI's own price, with 20% off on the `GrokOfficial` group**

xAI (SpaceXAI)'s new flagship, shipped 7 August. This generation **did not change the base model** — it reuses Grok 4.5's 1.5T-parameter V9 foundation, with the entire gain coming from heavier supervised fine-tuning and reinforcement learning, so speed, token efficiency and list price all match Grok 4.5. The Artificial Analysis Intelligence Index (High tier) rises from **56 to 61**, level with GPT-5.6 Sol Max, with top-tier results on GDPval-AA v2, AA-Briefcase and Harvey LAB. xAI reports markedly stronger self-testing and verification on long-running tasks.

Specs and integration: 500K context, text and image input, both `/v1/chat/completions` and `/v1/responses`, integrated exactly like the rest of the Grok 4.x line — just change the `model` name.

Billing runs in two context tiers, identical to xAI's own:

* 0 – 200K tokens: \$2.00 input, \$6.00 output, \$0.50 cached read (per 1M tokens)
* 200K – 512K tokens: \$4.00 input, \$12.00 output, \$1.00 cached read (per 1M tokens)

The `GrokOfficial` direct-relay group runs at a **0.8x** multiplier (20% off the default group), with identical model behavior and call syntax — select it when creating a Token, no code changes. The discount stacks with [top-up bonuses](/en/faq/recharge-promotions) (10%–20%), bringing first-tier input as low as **\$1.33** and output to **\$4.00**.

Existing `grok-4.5` workloads get the same price and speed, so changing the model name is pure upside. Full benchmarks, capability matrix and code samples: [Grok 4.6 launch notes](/en/news/grok-4-6-launch).

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