Question 1

What is Grok 4.5?

Accepted Answer

Grok 4.5 is a proprietary multimodal AI model by xAI, released in July 2026.  Context window: 500K tokens.

Question 2

How much does Grok 4.5 cost?

Accepted Answer

Grok 4.5 costs $2.00 per million input tokens and $6.00 per million output tokens. For a typical conversation (~2,000 tokens), that's approximately $0.010 per message.

Question 3

What benchmarks has Grok 4.5 been tested on?

Accepted Answer

Grok 4.5 has not been benchmarked yet. Scores are added as benchmarks are published.

Question 4

Is Grok 4.5 open source?

Accepted Answer

No, Grok 4.5 is a proprietary model by xAI.

Question 5

How does Grok 4.5 compare to GPT-4o Audio?

Accepted Answer

Grok 4.5 has an average score of 0.0 while GPT-4o Audio scores 0.0. GPT-4o Audio slightly outperforms Grok 4.5 overall. Grok 4.5 costs $2.00/1M input vs GPT-4o Audio at $2.50/1M input. See full comparison →

Grok 4.5

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