Grok 4.5
Grok 4.5 is a SpaceXAI reasoning model built for coding, agentic tasks, and knowledge work, accepting text and image input with selectable low, medium, and high reasoning levels. Your use is subject to SpaceXAI's Terms & Privacy Policies.
ReasoningTool UseImplicit CachingFile InputVision (Image)Web Search
import { streamText } from 'ai'
const result = streamText({ model: 'spacexai/grok-4.5', prompt: 'Why is the sky blue?'})Copy link to headingMore models by SpaceXAI
| Model |
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| 500K | $2/M+1 more | $6/M+1 more | Read: $0.50/M+1 more Write: — | $5/K + input costs | +1 |  | 08/12/2026 | |||||||
| 1M | $1.25/M+1 more | $2.50/M+1 more | Read: $0.20/M+1 more Write: — | $5/K + input costs | +3 |  | 04/30/2026 | |||||||
| 2M | $1.25/M+1 more | $2.50/M+1 more | Read: $0.20/M+1 more Write: — | $5/K + input costs | +2 | | 03/10/2026 | |||||||
| 2M | $1.25/M+1 more | $2.50/M+1 more | Read: $0.20/M+1 more Write: — | $5/K + input costs | +3 | | 03/10/2026 | |||||||
| 1M | $0.20/M | $0.50/M | Read:$0.05/M Write:— | — | +1 | | 11/19/2025 | |||||||
| 1M | $0.20/M | $0.50/M | Read:$0.05/M Write:— | — | +2 | | 11/19/2025 |