Grok 4.2 Fast Non Reasoning

Name: Grok 4.2 Fast Non Reasoning
Brand: xai
SKU: xai/grok-4.2-fast-non-reasoning

xai·xai/grok-4.2-fast-non-reasoning·GA·Closed·grok series

Grok model for agentic tool use, reasoning, coding, and live assistance

Specs & pricing

Input / output per 1M tokens

Reference priceZenMux

$2.00 / $6.00

Blended $3.00 · Cache read $0.20

Lowest paidZenMuxGateway

$2.00 / $6.00

Blended $3.00

Context

2,000,000

Output limit

30,000

Knowledge cutoff

—

Released / updated

2026-03-09 / 2026-03-09

Capabilities

Reasoning✓ Tool use✓ Structured output✓ Temperature✓ Attachments

Modalities

TextImage

Available at 1 providers1 with public prices

Priced only

Provider	Tier	Input	Output	Cache read	Cache write	Context	Output limit	Status
ZenMux	Gateway	$2.00 tiered >128K: $4.00	$6.00	$0.20	—	2,000,000	30,000

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Your usage cost

Input tokens / month

Output tokens / month

Cache hit rate

Common scenarios

1ZenMux$484.00

The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input listOutput listMin blended

Grok 4.2 Fast Non Reasoning

Specs & pricing

Available at 1 providers1 with public prices

Your usage cost

Price historyone sample accumulated per data sync

Related models

Grok 4.2 Fast Non Reasoning

Specs & pricing

Available at 1 providers1 with public prices

Your usage cost

Price historyone sample accumulated per data sync

Related models