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xAI Grok 3

HeliconeFrontier

xAI Grok 3 by Helicone costs $3.00 per 1M input tokens and $15.00 per 1M output tokens, with a 131K-token context window.

Pricing

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

Specifications

Provider
Helicone
Context window
131K tokens
Parameters
3T
Released
Jun 2024
Open weights
No
Frontier model
Yes

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FAQ

How much does xAI Grok 3 cost?

xAI Grok 3 is priced at $3.00 per 1M input tokens and $15.00 per 1M output tokens. Output tokens cost more than input.

What is xAI Grok 3's context window?

xAI Grok 3 supports a context window of 131K tokens — the maximum prompt plus response length it can handle in a single request.

Is xAI Grok 3 open weight?

No — xAI Grok 3 is a closed/proprietary model accessed via API.

Data as of 2026-10-16. Source: models.dev (open). Pricing is per 1M tokens (USD); confirm with the provider before production use.