Elon Musk’s xAI just dropped Grok 4.5, and the early results are turning heads. Developers are reportedly building complex projects faster than anyone anticipated, prompting Musk to blast out invitations across social media urging more users to take it for a spin.
The model launched publicly on July 8-9, and it arrives with a clear mission: undercut the competition on price while matching or beating them on performance.
What Grok 4.5 actually brings to the table
Grok 4.5 enters carrying what xAI calls an “Opus-class” designation, a direct shot at Anthropic’s Claude Opus line. The claim: it uses 4.2x fewer output tokens than Anthropic’s Opus 4.8 on specific coding benchmarks.
Pricing is set at $2 per million input tokens and $6 per million output tokens. The model ships with a 500k-token context window. It’s available through Cursor, Grok Build, and the xAI API, with an EU rollout planned for mid-July. Limited free trials are already live.
