grok-3-fast-beta

Common Name: Grok 3 Fast Beta

X-AI
Released on Feb 17 12:00 AMSupportedTool Invocation
CompareTry in Chat

Beta version of Grok 3 Fast for faster responses.

Specifications

Context
131.1K
Maximum Output
128K
Inputtext
Outputtext

Performance (7-day Average)

Collecting…
Collecting…
Collecting…

Pricing

Input$5.50/MTokens
Cached Input$1.38/MTokens
Output$27.50/MTokens

Availability Trend (24h)

Performance Metrics (24h)

Similar Models

$3.30/$16.50/M
ctx256Kmax128Kavailtps
InOutCap

xAI's most intelligent model with native tool use and real-time search integration. Claimed to outperform PhD-level on academic questions.

$3.30/$16.50/M
ctx256Kmax128Kavailtps
InOutCap

July 9, 2025 snapshot of Grok 4, xAI's most intelligent model.

$3.30/$16.50/M
ctx256Kmax128Kavailtps

xAI's most intelligent model with native tool use and real-time search. Frontier-level performance on reasoning benchmarks.

$3.30/$16.50/M
ctx131Kmax128Kavailtps

xAI's advanced reasoning model with 1M token context, trained with 10x more compute than previous models on the Colossus supercluster.