Overview
Grok 4.6 is a reasoning model from xAI designed for coding, knowledge work and STEM tasks. xAI describes it as delivering frontier performance in those areas. It supports tool calling, structured output and vision, takes text and image input, and returns text.
It has a 500,000-token context window. It accepts text and image input and returns text. It was released on August 12, 2026. Its knowledge cutoff is February 1, 2026.
Capabilities
Grok 4.6 combines reasoning with tool calling and structured output. It can work through a multi-step problem, call functions you define, and return data in a format your application expects.
Vision support lets it read images such as screenshots, charts and scanned pages that arrive with a text prompt. The answer comes back as text.
Pricing
Grok 4.6 is priced from $2.00 per 1M input tokens and $6.00 per 1M output tokens. Cached input reads cost $0.50 per 1M tokens. The prices shown are for the starting tier; requests with very long prompts are billed at higher rates.
Grok 4.6 is available through RealRelay's OpenAI-compatible API.
Use cases
Use Grok 4.6 for software engineering questions, code review and debugging sessions, where reasoning and tool calling let it inspect a problem and propose a structured fix.
It also suits knowledge work and STEM tasks such as summarising long documents, checking calculations, or answering questions about a chart that you attach as an image.
What is Grok 4.6?
Grok 4.6 is a reasoning model from xAI designed for coding, knowledge work and STEM tasks. xAI describes it as delivering frontier performance in those areas. It supports tool calling, structured output and vision, takes text and image input, and returns text.
How much does Grok 4.6 cost?
Grok 4.6 is priced from $2.00 per 1M input tokens and $6.00 per 1M output tokens. Cached input reads cost $0.50 per 1M tokens. The prices shown are for the starting tier; requests with very long prompts are billed at higher rates.
What is the context window of Grok 4.6?
Grok 4.6 has a 500,000-token context window.
What inputs and outputs does Grok 4.6 support?
Grok 4.6 accepts text and image input and returns text.
What can Grok 4.6 do beyond plain text?
Grok 4.6 supports reasoning, tool calling, structured output and vision, so it can read images and respond with text.
When was Grok 4.6 released?
Grok 4.6 was released on August 12, 2026.
How do I call Grok 4.6 through the API?
Call Grok 4.6 through RealRelay's OpenAI-compatible API by setting the model field to xai/grok-4.6.