Is GPT-5 cheaper than Grok 4?

Grok 4 is cheaper, at $5.00 per 1M input tokens versus $10.00.

Which has the larger context window, GPT-5 or Grok 4?

Both support 256K tokens of context.

Name: GPT-5
Brand: OpenAI
Price: 10 USD
Availability: InStock

Grok 4 is cheaper on input ($5.00 vs $10.00 per 1M tokens).

Spec	GPT-5	Grok 4
Provider	OpenAI	xAI
Modality	Text + Vision	Text + Vision
Context window	256K	256K
Input / 1M	$10.00	$5.00best
Output / 1M	$30.00	$15.00best
Released	Dec 2025	Dec 2025
Best for	Chat / Assistant, Code generation, Image / Vision	Chat / Assistant, Code generation, Image / Vision

Is GPT-5 cheaper than Grok 4?: Grok 4 is cheaper, at $5.00 per 1M input tokens versus $10.00.
Which has the larger context window, GPT-5 or Grok 4?: Both support 256K tokens of context.