Grok 4.5
LivexAIgrok-4-5Grok 4.5 by xAI: 500K context, 131K max output, with Vision, File input, Function calling, Structured output, Streaming, Reasoning, Code execution, Web search. On Hostlinku: Performance starts at $0.93/1M input.
Input
/ 1M token
Output
/ 1M token
Cache read
per 1M token
$0.1395
$0.30Cache write (5m)
per 1M token
$1.16
$2.50Cache write (1h)
per 1M token
$1.86
Web search
per 1K calls
$0.93
Context window
500.0K
500,000 tokens
Max output
131.1K
131,072 tokens
7-day uptime
99.90%
0 requests · 0 failed
Measured throughput
—
Real traffic, last 7 days · output side
Capabilities
What this model can do through the Hostlinku gateway.
Vision
Reads images, screenshots, and diagrams alongside text. Send image inputs directly in the messages payload.
Function calling
The model calls tools you define and folds their results into the reply. Required for agentic workflows and multi-step automation.
Reasoning
Spends extra thinking tokens on hard problems before answering. Best for math, code, and multi-step logic.
Prompt caching
Response schema
Guarantees JSON output that matches a schema you provide. No brittle post-parsing on your side.
Streaming
Streams tokens as they are generated for real-time UX. Supported on every Hostlinku protocol.
Web search
Runs server-side web searches and folds the results into the answer. Billed per 1K calls.
Audio
Video
File input
Accepts documents such as PDFs and spreadsheets as context. Great for Q&A over long attachments.
Realtime
Session
Media
Multipart form
Binary response
Reliability & performance
Hostlinku measures this model from real request traffic: uptime and latency, not self-reported.
99.90%
0 requests in 7 days, 0 failed · automatic failover to backup channels
Latency and uptime are measured from real request traffic over the last 7 days; throughput from user output.
Protocols & code samples
Swap the base URL and everything else stays the same. Native protocols pass through; adapted protocols are translated by the Hostlinku gateway.
curl https://api.hostlinku.com/v1/messages \ -H "x-api-key: $HOSTLINKU_API_KEY" \ -H "anthropic-version: 2023-06-01" \ -H "content-type: application/json" \ -d '{ "model": "grok-4-5", "max_tokens": 1024, "messages": [ { "role": "user", "content": "Explain edge failover in one paragraph." } ] }'Full price list
Every billed dimension, with the vendor list price (struck through when higher) next to the $ price per Service Mode.
| Item | Unit | Original ($) | Performance$ |
|---|---|---|---|
| Input (prompt) | per 1M tokens | $2 | $0.93 |
| Output (completion) | per 1M tokens | $6 | $2.79 |
| Cache read | per 1M tokens | $0.30 | $0.1395 |
| Cache write (5m) | per 1M tokens | $2.50 | $1.16 |
Vendor list price is struck through when at least one Service Mode is cheaper. Dimensions without strikethrough (e.g. web search) are not discounted upstream. This model is not yet available in Economy.
More from xAI
Other models from the same vendor, with prices and context for comparison.
FAQ
Common questions about Grok 4.5: pricing, capabilities, and how they are measured.
xAI
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