Grok 4.5
By xAI
Released: 2026-07-08
xAI's frontier model, opened to the public on 9 July 2026. Artificial Analysis scores it 54 on the Intelligence Index (fourth overall) and 76 on the Coding Agent Index, tying GPT-5.6 Sol on SWE-Atlas-QnA at a far lower $0.31 cost per task, with pricing of $2/$6 per million tokens.
Visit Grok 4.5AI-Powered
Leverages advanced AI technology to deliver cutting-edge capabilities and results.
Fast & Efficient
Optimized performance ensures quick results without compromising on quality.
Purpose-Built
Specifically designed for llms tasks and workflows.
xAI Model Timeline
Specifications
AI Evaluation
The value pick at the frontier: near-flagship coding performance at a fraction of the cost per task, though launch materials omitted a model card.
Pros
- Coding Agent Index 76 at $0.31 per task
- Aggressive $2/$6 pricing
- Public access from 9 July 2026
Cons
- No model card published at launch
- Independent testing found a raised hallucination rate versus its predecessor
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