Grok 4.6 Flagship, Grok 4.5, Grok 4.3, and Grok Build 0.1 models served from Colossus clusters with up to 1M-token context and cheap output token rates.
7 models tracked · cheapest input: Grok 4.1 Fast at $0.20/M · official pricing page
Grok 4.6 and the Grok Build line are trained with real-time data from X, pairing flagship reasoning with cheap output rates and 1M-token context — a strong pick for current-events and coding-heavy workloads.
Input /M
$2.00
Output /M
$6.00
Context
500K
xAI's flagship model served from Colossus clusters with real-time X platform data grounding, 500K context, and cheap output token rates.
grok-4-5
Input /M
$2.00
Output /M
$6.00
Context
500K
Advanced coding and agentic specialist model with 500k context window and deep multi-step problem solving at $2.00/$6.00.
grok-4-3
Input /M
$1.25
Output /M
$2.50
Context
1M
General reasoning model with 1M context window and low output rate ($1.25/$2.50 per 1M tokens).
grok-build-0-1
Input /M
$1.00
Output /M
$2.00
Context
256K
Coding specialist model optimized for IDE tool usage, automated test suites, and software architecture at $1.00/$2.00.
grok-4-1-fast
Input /M
$0.20
Output /M
$0.50
Context
2M
High-volume budget model with 2M context window at $0.20/$0.50 per 1M tokens for bulk analytics.
grok-2-1212
Input /M
$2.00
Output /M
$10.00
Context
128K
Legacy Grok 2 conversational and reasoning model with real-time X platform data integration and 128K context.
grok-2-vision-1212
Input /M
$2.00
Output /M
$10.00
Context
128K
xAI's multimodal visual reasoning model processing photos, diagrams, and screenshots.
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All xAI prices verified Aug 28, 2026. Prices change frequently — each model page links to the authoritative source.