HomeMusk Promises Monthly Grok 4.5 Releases, Touting Performance Rivaling Claude Opus
On June 28, 2026, Elon Musk announced on X that his latest large language model, Grok 4.5, has entered internal beta testing at SpaceX and Tesla, with broader deployment planned for the future.
Powered by a 1.5-trillion-parameter V9 base model, Grok 4.5 was fine-tuned using data from the popular AI coding tool Cursor. Musk claims early benchmarks show it rivals or surpasses Anthropic’s flagship Claude Opus, while reinforcement learning and test suites continue to be refined.
Musk revealed an aggressive release schedule: SpaceX will launch a new foundational model “trained completely from scratch” every month for the remainder of 2026, rather than releasing incremental updates. This rapid cadence significantly outpaces industry norms and could intensify competition with OpenAI and Google.
Strategically, this aligns with SpaceX’s $6 billion acquisition of Anysphere, the developer of Cursor, announced on June 16, with completion expected by Q3 2026. Testing Grok 4.5 in real-world industrial applications provides high-value feedback for optimization and underscores xAI’s commitment to expanding its enterprise AI footprint, particularly in coding assistance.
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On June 28, 2026, Elon Musk announced on X that his latest large language model, Grok 4.5, has entered internal beta testing at SpaceX and Tesla, with broader deployment planned for the future.
Powered by a 1.5-trillion-parameter V9 base model, Grok 4.5 was fine-tuned using data from the popular AI coding tool Cursor. Musk claims early benchmarks show it rivals or surpasses Anthropic’s flagship Claude Opus, while reinforcement learning and test suites continue to be refined.
Musk revealed an aggressive release schedule: SpaceX will launch a new foundational model “trained completely from scratch” every month for the remainder of 2026, rather than releasing incremental updates. This rapid cadence significantly outpaces industry norms and could intensify competition with OpenAI and Google.
Strategically, this aligns with SpaceX’s $6 billion acquisition of Anysphere, the developer of Cursor, announced on June 16, with completion expected by Q3 2026. Testing Grok 4.5 in real-world industrial applications provides high-value feedback for optimization and underscores xAI’s commitment to expanding its enterprise AI footprint, particularly in coding assistance.
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Swedish AI Startup Lovable Eyes $13.2 Billion Valuation After Major Funding Round
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