Grok 4.20 reasoning model with vision and tool support.
LLM Gateway routes requests to the best providers that are able to handle your prompt size and parameters.
Grok 4.20 reasoning model with vision and tool support. You can access it through LLM Gateway's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.
Pricing for Grok 4.20 Reasoning on LLM Gateway starts at $1.25 per million input tokens and $2.50 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.
Grok 4.20 Reasoning supports a context window of up to 2,000,000 tokens on its largest provider deployment.
Grok 4.20 Reasoning is served by Vertex AI (OpenAI-compatible) through LLM Gateway. Requests are automatically routed to the best available provider, with fallback when a provider has issues.
Yes. Grok 4.20 Reasoning supports both tool (function) calling and structured JSON outputs through LLM Gateway.
Grok 4.20 Reasoning was released on March 9, 2026.
Grok STT 1.0
$0.00 in / $0.00 out per 1M
Grok 4.5
500,000 context$2.00 in / $6.00 out per 1M
Grok Imagine Video 1.5
2,000 context$0.00 in / $0.00 out per 1M
Grok Imagine Video 1.5 Preview
2,000 context$0.00 in / $0.00 out per 1M
Grok Build 0.1
256,000 context$1.00 in / $2.00 out per 1M
Grok 4.3
1,000,000 context$1.25 in / $2.50 out per 1M