Grok-3

xAI's advanced model with strong reasoning capabilities.

grok-3
STABLEModel DeactivatedGet StartedView uptime
131,072 context
Released February 17, 2025
Starting at $3.00/M input tokens
Starting at $15.00/M output tokens
Streaming
Tools
JSON Output
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All Providers for Grok-3

LLM Gateway routes requests to the best providers that are able to handle your prompt size and parameters.

xAI
Context: 131.1k
Deactivated since May 15, 2026
Input
$3
/M tokens
Cache Read
$0.75
/M tokens
Output
$15
/M tokens
Get Started

Frequently asked questions

What is Grok-3?

xAI's advanced model with strong reasoning capabilities. You can access it through LLM Gateway's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.

How much does Grok-3 cost?

Pricing for Grok-3 on LLM Gateway starts at $3.00 per million input tokens and $15.00 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.

What is the context length of Grok-3?

Grok-3 supports a context window of up to 131,072 tokens on its largest provider deployment.

Which providers serve Grok-3?

Grok-3 is served by xAI through LLM Gateway. Requests are automatically routed to the best available provider, with fallback when a provider has issues.

Does Grok-3 support tool calling and structured outputs?

Yes. Grok-3 supports both tool (function) calling and structured JSON outputs through LLM Gateway.

When was Grok-3 released?

Grok-3 was released on February 17, 2025.