GPT-6 Astra vs Grok 4.7

GPT-6 and Grok 4.7 at a glance

GPT-6 is an OpenAI model family with 3 variants (Astra, Sol and Luna) available in Quad Chat, with up to 1.05M tokens of context, image input, tool calling and adjustable reasoning. Grok 4.7 is an xAI model available in Quad Chat, with up to 500K tokens of context, image input, tool calling and adjustable reasoning. This page compares specifications and plan availability from the Quad Chat model catalog. It does not publish benchmark scores, because quality depends on your task; the quickest fair test is to send the same prompt to both models in one Quad Chat conversation. Where a family has several variants, the head-to-head below uses the top variant (the one needing the highest plan, then the highest output price): GPT-6 Astra for GPT-6.

GPT-6 Astra vs Grok 4.7

Top variant of each family, side by side. Lab: GPT-6 Astra OpenAI, Grok 4.7 xAI. Plan needed: GPT-6 Astra Pro ($15/month), Grok 4.7 Pro ($15/month). Context window: GPT-6 Astra 1.05M tokens, Grok 4.7 500K tokens. Max output: GPT-6 Astra 128K tokens, Grok 4.7 500K tokens. API input price: GPT-6 Astra $10.00 per 1M, Grok 4.7 $2.00 per 1M. API output price: GPT-6 Astra $50.00 per 1M, Grok 4.7 $6.00 per 1M. Image input: GPT-6 Astra Yes, Grok 4.7 Yes. Tool calling: GPT-6 Astra Yes, Grok 4.7 Yes. Reasoning: GPT-6 Astra Yes, adjustable (low, medium, high, xhigh, max), Grok 4.7 Yes, adjustable (low, medium, high, xhigh). Privacy lane: GPT-6 Astra Private Lane (Zero Data Retention), Grok 4.7 Private Lane (Zero Data Retention).

Cheapest GPT-6 vs cheapest Grok 4.7

The lowest-priced variant of each family, for everyday use. Lab: GPT-6 Luna OpenAI, Grok 4.7 xAI. Plan needed: GPT-6 Luna Free, Grok 4.7 Pro ($15/month). Context window: GPT-6 Luna 1.05M tokens, Grok 4.7 500K tokens. Max output: GPT-6 Luna 128K tokens, Grok 4.7 500K tokens. API input price: GPT-6 Luna $0.10 per 1M, Grok 4.7 $2.00 per 1M. API output price: GPT-6 Luna $0.50 per 1M, Grok 4.7 $6.00 per 1M. Image input: GPT-6 Luna Yes, Grok 4.7 Yes. Tool calling: GPT-6 Luna Yes, Grok 4.7 Yes. Reasoning: GPT-6 Luna Yes, adjustable (low, medium, high, xhigh, max), Grok 4.7 Yes, adjustable (low, medium, high, xhigh). Privacy lane: GPT-6 Luna Private Lane (Zero Data Retention), Grok 4.7 Private Lane (Zero Data Retention).

Choose GPT-6 or Grok 4.7

Each point below comes from a real difference in the catalog data. Choose GPT-6 if: You want a budget variant: GPT-6 Luna is the cheapest in its family at $0.10 in / $0.50 out, below Grok 4.7 at $2.00 in / $6.00 out. You want to start on a lower plan: GPT-6 has a variant on the Free plan (no credit card), while Grok 4.7 starts at Pro ($15/month). You work with long documents or histories: its context window is 1.05M tokens against 500K. You like choosing a size: GPT-6 comes in 3 variants (GPT-6 Astra, GPT-6 Sol and GPT-6 Luna), against 1. Choose Grok 4.7 if: You want the lower API list price at the top tier: Grok 4.7 lists at $2.00 in / $6.00 out against $10.00 in / $50.00 out for GPT-6 Astra, about 8.3× less per output token. You need very long replies in one go: it can write up to 500K tokens, against 128K. You do not have to choose: Quad Chat lets you switch between GPT-6 and Grok 4.7 in the same conversation, or ask both at once and compare the answers.

Every GPT-6 and Grok 4.7 variant

All selectable variants of both families. Click a header to sort. GPT-6: GPT-6 Astra (Pro), GPT-6 Sol (Pro), GPT-6 Luna (Free). Grok 4.7: Grok 4.7 (Pro).

Frequently asked questions

Is GPT-6 or Grok 4.7 cheaper?

At provider list prices, Grok 4.7 is cheaper at the top tier ($2.00 in / $6.00 out against $10.00 in / $50.00 out per million tokens). API prices are the model provider's list prices per million tokens, shown for comparison only. Quad Chat plans have a flat monthly price and draw usage from shared credits, so you are not billed per token.

Which has the larger context window, GPT-6 or Grok 4.7?

GPT-6 reaches 1.05M tokens, against 500K for Grok 4.7, according to the model catalog Quad Chat routes through. Files, pasted text and earlier messages all count toward the window.

Which Quad Chat plan do I need for GPT-6 and Grok 4.7?

GPT-6 starts on the Free plan, and its top variant, GPT-6 Astra, needs the Pro ($15/month) plan. Grok 4.7 needs the Pro ($15/month) plan. Plans are cumulative, and every plan shares one monthly credit balance (100 on Free up to 25,000 on Max).

Do GPT-6 and Grok 4.7 support images, tools and reasoning?

GPT-6 Astra: image input yes, tool calling yes, reasoning yes. Grok 4.7: image input yes, tool calling yes, reasoning yes. Other variants in each family can differ, as the variant table shows.

Can I use GPT-6 and Grok 4.7 in the same chat?

Yes. In Quad Chat you can switch between models mid-conversation without losing your files or context, or send one prompt to both and compare the answers side by side, which is the most reliable way to decide between them for your own work. Side-by-side comparison is included on every plan.

Is GPT-6 or Grok 4.7 more private in Quad Chat?

Both top variants run on the Private Lane, routed to providers under Zero Data Retention terms. Quad Chat does not train models on your conversations either way.