xAI / Grok API Pricing and Model Catalog: Use-Case Guide
xAI offers Grok models with vision, tools, and reasoning capabilities. Here's how to use their API cost-effectively.
Pricing data sourced from our catalog. Check data sources for provenance and freshness.
What is xAI?
xAI is an AI company founded by Elon Musk, offering:
- Grok models: Vision, tools, and reasoning capabilities
- Real-time data: Access to X (Twitter) data for training
- Humor: Models designed to be witty and humorous
- Growing ecosystem: Expanding model catalog and capabilities
xAI model catalog
Chat models
| Model | Input | Output | Context |
|---|---|---|---|
| grok-4-fast-reasoning | $0.2000 | $0.5000 | 2000K |
| grok-4-fast-non-reasoning | $0.2000 | $0.5000 | 2000K |
| grok-4-1-fast | $0.2000 | $0.5000 | 2000K |
| grok-4-1-fast-reasoning | $0.2000 | $0.5000 | 2000K |
| grok-4-1-fast-reasoning-latest | $0.2000 | $0.5000 | 2000K |
Cost estimation example
Let's estimate costs for a typical xAI chat workload:
xAI strengths
- Vision capabilities: Grok models support image input
- Tool use: Function calling and tool integration
- Reasoning: Strong reasoning capabilities
- Real-time data: Access to X (Twitter) data
- Humor: Models designed to be witty
When to use xAI
- Social media analysis: When you need real-time social data
- Vision tasks: When you need image understanding
- Tool integration: When you need function calling
- Humorous content: When you need witty responses
Cost optimization tips
- Use smaller models: For less complex tasks
- Batch processing: Process multiple requests together
- Caching: Cache responses for repeated queries
- Right-size your model: Match model size to task complexity
- Monitor usage: Track token usage to optimize costs
Compare xAI models
Ready to compare xAI models side by side? Use our tools:
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Rate limits, latency, evaluation overhead, and vendor risk beyond per-token pricing.
Local LLM vs cloud API cost comparison
When self-hosting saves money and when it doesn't.
Frequently asked questions
What is xAI's cheapest model?
xAI's Grok 3 Mini models are typically the most cost-effective for chat workloads.
How does xAI compare to OpenAI?
xAI offers unique advantages in real-time data access and vision capabilities, while OpenAI has a more mature ecosystem and broader model selection.
Does xAI offer batch pricing?
xAI focuses on real-time inference and does not currently offer batch pricing.