---
id: "x-ai/grok-4.5"
also: ["x-ai/grok-4.5-20260708", "requesty/xai/grok-4.5", "vercel/spacexai/grok-4.5", "vercel/xai/grok-4.5"]
card_usd_per_m: "2.0 in, 6.0 out, at xai"
cheapest_list_usd_per_m: "2.0 in, 6.0 out, at xai on openrouter"
cheapest_effective_usd_per_m: "0.8113 in, 6.0073 out, at xai/zdr on openrouter"
context: 500000
max_output: 450000
input: ["text", "image", "file"]
output: ["text"]
released: "2026-07-08"
reasoning: ["high", "medium", "low"]
api: ["/api/v1/chat/completions", "/api/v1/completions", "/api/v1/messages", "/api/v1/responses"]
params: ["include_reasoning", "logprobs", "max_tokens", "reasoning", "reasoning_effort", "response_format", "seed", "stop", "structured_outputs", "temperature", "tool_choice", "tools", "top_logprobs", "top_p"]
endpoints: 7
gateways: "openrouter (4), vercel (2), requesty (1)"
no_training: 7
trains: 0
retains_prompts: 2
coding: 72.4000
agentic: 41.2000
---
# SpaceXAI: Grok 4.5

Grok 4.5 is xAI's frontier multimodal model for advanced coding, knowledge work, STEM reasoning, and agentic workflows. It supports text and image inputs with text output, tool calling, structured outputs, web search, and extended reasoning. Pricing is tiered: requests exceeding 200k total tokens are billed at a higher rate.