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Grok 4

ZenMuxFrontier

Grok 4 by ZenMux costs $3.00 per 1M input tokens and $15.00 per 1M output tokens, with a 256K-token context window.

Pricing

Input (per 1M tokens)
$3.00
Output (per 1M tokens)
$15.00
Cached input (per 1M)
$0.75

Specifications

Provider
ZenMux
Context window
256K tokens
Parameters
3T
Released
Jul 2025
Open weights
No
Frontier model
Yes

Compare Grok 4 with…

Grok 4 vs Grok Code Fast 1$1.50/1MGrok 4 vs Grok 4.1 Fast Non Reasoning$0.50/1MGrok 4 vs Grok 4 Fast$0.50/1MGrok 4 vs Grok 4.1 Fast$0.50/1MGrok 4 vs GLM 5.2 (Free)$0.00/1MGrok 4 vs Claude Opus 4.1$75.00/1M

FAQ

How much does Grok 4 cost?

Grok 4 is priced at $3.00 per 1M input tokens and $15.00 per 1M output tokens. Output tokens cost more than input.

What is Grok 4's context window?

Grok 4 supports a context window of 256K tokens — the maximum prompt plus response length it can handle in a single request.

Is Grok 4 open weight?

No — Grok 4 is a closed/proprietary model accessed via API.

Data as of 2026-06-28. Source: models.dev (open). Pricing is per 1M tokens (USD); confirm with the provider before production use.