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Introducing Grok 4.5
Today, we're launching Grok 4.5, SpaceXAI's smartest model built to excel at coding, agentic tasks, and knowledge work. It's our strongest model ever and was trained alongside Cursor.
Grok 4.5
xAI's Grok 4.5 flagship for chat, coding, and agentic tool use, with lower hallucination risk.
Specs
Model
- Family
- Grok
- Variant
- 4.5
- Weights
- Proprietary
Limits
- Context
- 500,000 tokens
- Max output
- 500,000 tokens
Modalities
- Input
- Text Image PDF
- Output
- Text
Pricing
- Input
- $2 / 1M
- Output
- $6 / 1M
- Cache read
- $0.3 / 1M
Capabilities
- Reasoning
- Yes
- Reasoning control
- Effort levels
- Tool calling
- Yes
- Attachments
- Yes
Dates
- Released
- 8 Jul 2026
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