xAI: grok-4-fast-non-reasoning

reasoningproprietary
Context
2M
Input price
$0.2/1M tokens
Output price
$0.5/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Model IDgrok/grok-4-fast-non-reasoning
Provider Cloudflare AI Gateway
Creator xAI
Familygrok-4
Licenseproprietary
Status—
Typereasoning
Input modalitiestext
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window2M tokens
Max input—
Max output—
Reasoning tokens—
Knowledge cutoff
Release date
Sourceofficial

Pricing

Input
$0.2
Output
$0.5
Cache write
—
Cache read
—
Batch in
—
Batch out
—

Family Comparison: grok-4

ModelContextMax outPricing
OpenRouter: x-ai/grok-4-fast:free———
Azure OpenAI: grok-4-1-fast-non-reasoning——$0.2$0.5
Azure OpenAI: grok-4-1-fast-reasoning——$0.2$0.5
Azure OpenAI: grok-4-fast-non-reasoning——$0.2$0.5
Azure OpenAI: grok-4-fast-reasoning——$0.2$0.5
xAI: grok-4-1-fast-non-reasoning2M—$0.2$0.5
xAI: grok-4-1-fast-reasoning2M—$0.2$0.5
xAI: grok-4-1-fast——$0.2$0.5
xAI: grok-4-fast-non-reasoning2M—$0.2$0.5
xAI: grok-4-fast-reasoning2M—$0.2$0.5
xAI: grok-4-fast——$0.2$0.5
OpenRouter: x-ai/grok-4-fast——$0.2$0.5
Azure OpenAI: grok-4——$3$15
xAI: grok-4-07-09256K—$3$15
xAI: grok-4——$3$15
OpenRouter: x-ai/grok-4-07-09——$3$15
OpenRouter: x-ai/grok-4——$3$15

API

GET/v1/models/cloudflare-ai-gateway/grok/grok-4-fast-non-reasoning

xAI: grok-4-fast-non-reasoning

grok/grok-4-fast-non-reasoning
Changes · 2 entries
grok/grok-4-fast-non-reasoningupdate1cd659eMar 24, 2026, 04:19 AM
modalitiesinput["text"]output["text"]
grok/grok-4-fast-non-reasoningcreate7a4f1f6Mar 22, 2026, 05:43 AM