Is GPT-5.6 Terra or Grok 4.7 cheaper?

Grok 4.7 is cheaper for a typical request of 1,000 input and 500 output tokens: $0.005 versus $0.008 for GPT-5.6 Terra, about 38% less.

What are the per-token prices of GPT-5.6 Terra and Grok 4.7?

GPT-5.6 Terra costs $2.00 input and $12.00 output per million tokens. Grok 4.7 costs $2.00 input and $6.00 output per million tokens.

Which has the larger context window, GPT-5.6 Terra or Grok 4.7?

GPT-5.6 Terra has the larger context window: 1.05M tokens versus 500K for Grok 4.7.

OpenAI vs xAI

GPT-5.6 Terra vs Grok 4.7: pricing comparison

Grok 4.7 costs 38% less than GPT-5.6 Terra for a typical 1,000-input, 500-output request. Here is how the two compare on price, context and discounts.

Prices last updated: September 25, 2026

	GPT-5.6 Terra	Grok 4.7
Provider	OpenAI	xAI
Input per 1M tokens	$2.00	$2.00
Output per 1M tokens	$12.00	$6.00
Context window	1.05M	500K
Batch discount	50% off	Not offered
Typical request (1,000 in / 500 out)	$0.008	$0.005
Monthly at 1,000 requests/day	$240.00	$150.00

GPT-5.6 Terra: Inputs above 272K tokens are billed at a higher long-context rate ($4 / $18).

Grok 4.7: Price shown is for inputs below 200K tokens.

Compare with your own numbers

Input tokens

Output tokens

Requests / day

GPT-5.6 Terra per request: $0.008
Per month: $240.00

Grok 4.7 per request: $0.005
Per month: $150.00

Cost by task

Cost per 1,000 requests at standard prices.
Task	Tokens (in / out)	GPT-5.6 Terra	Grok 4.7
Short chat reply	500 / 300	$4.60	$2.80
RAG answer	6,000 / 600	$19.20	$15.60
Summarize a long document	12,000 / 1,000	$36.00	$30.00
Output-heavy generation	1,000 / 4,000	$50.00	$26.00

Output tokens usually dominate the bill — see input vs output token cost.

Frequently asked questions

Is GPT-5.6 Terra or Grok 4.7 cheaper?: Grok 4.7 is cheaper for a typical request of 1,000 input and 500 output tokens: $0.005 versus $0.008 for GPT-5.6 Terra, about 38% less.
What are the per-token prices of GPT-5.6 Terra and Grok 4.7?: GPT-5.6 Terra costs $2.00 input and $12.00 output per million tokens. Grok 4.7 costs $2.00 input and $6.00 output per million tokens.
Which has the larger context window, GPT-5.6 Terra or Grok 4.7?: GPT-5.6 Terra has the larger context window: 1.05M tokens versus 500K for Grok 4.7.

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