xAI
Grok 4.5
Grok 4.5 — xAI flagship chat model on OpenRouter with 500K context, multimodal inputs, prompt-cache reads, tools, and reasoning.
grok-4.5Pricing
~98%- Input
- $0.041111 / 1,000,000 tokens
- Output
- $0.123333 / 1,000,000 tokens
- Cache read
- $0.006167 / 1,000,000 tokens
- Cache write
- $0.041111 / 1,000,000 tokens
Discount history
Model details
- Input
- text, image, file
- Output
- text
- Context window
- 500,000 tokens
- Maximum output
- 128,000 tokens
- Availability
- $6.8KUncapped capacity
- Updated
- 11/8/2026, 3:58:06 AM UTC
Capacity is reserved when your request is accepted.
Capabilities
ChatStreamingTool callingVisionReasoningWeb search
Supported parameters
include_reasoninglogprobsmax_tokensreasoningresponse_formatseedstructured_outputstemperaturetool_choicetoolstop_logprobstop_p