xAI (Grok)

xAI founded by Elon Musk, offering Grok — a real-time AI with web search built in. Grok 4.1 Fast delivers exceptional performance at a fraction of the cost of other flagship models.

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Plans & Pricing

Free (Grok.com)

✓Grok 4.1 Fast via grok.com
✓Real-time web search
✓Image generation (Grok Imagine)
✓Video generation (Grok Video)

API Free Credits

$0 (up to $175)

✓New users get free API credits
✓All Grok models
✓Voice API available
✓Rate limits apply

API Pay-Per-Use

From $0.20/1M tokens

✓Grok 4.1 Fast: $0.20/1M in / $0.50/1M out
✓Grok 4.20: $2.00/1M in / $6.00/1M out
✓Batch API: 50% discount
✓Voice API: $0.05/min

Free Tier

Grok.com: Free access with fair use rate limits. API: limited free credits for new users, then pay-as-you-go.

Models (7)

Compare →

Model	Context	In /1M	Out /1M	Capabilities
Grok 4.20 2M context window. Batch API: 50% off. ChatFunctions	2M	$2.00	$6.00	ChatFunctionsVision+2
Grok 4.1 Fast Best value flagship. 10x cheaper than Grok 4.20 with excellent performance. ChatFunctions	2M	$0.20	$0.50	ChatFunctionsVision+1
Grok 4.20 Multi-Agent Optimized for multi-agent workflows. ChatFunctions	2M	$2.00	$6.00	ChatFunctionsVision+3
Grok Imagine Pro Per-image pricing. 30 RPM. Image Gen	—	$0.07	Free	Image Gen
Grok Imagine Per-image pricing. 300 RPM. Image Gen	—	$0.02	Free	Image Gen
Grok Imagine Video Per-second video generation. $0.050/sec. Video Gen	—	$0.05	Free	Video Gen
Grok Voice Agent Per-minute voice. $0.05/min ($3/hr). Concurrent: 100 sessions. VoiceFunctions	—	$0.05	Free	VoiceFunctions