Grok 4.3

Fast, reliable model with strong tool calling and instruction following capabilities.

At a glance

• Modalities: text, image → text
• Context window: 1,000,000 tokens
• Model name: grok-4.3
• Aliases: grok-4.3-latest, grok-latest

Capabilities

• Function calling: Yes
• Structured outputs: Yes
• Reasoning: Yes

Pricing

Type	< 200k prompt tokens (per 1M tokens)	≥ 200k prompt tokens (per 1M tokens)
Input	$1.25	$2.50
Cached input	$0.20	$0.40
Output	$2.50	$5.00

Requests whose prompt reaches 200k tokens are billed at the higher rate for all tokens in the request.

Batch API requests are billed at a 20% discount to standard rates.

Rate limits

Limit	Value
Requests per second	37
Tokens per minute	10,000,000

Regions

Available in: us-east-1, eu-west-1, us-west-2