The artificial intelligence market is entering a new phase of intense competition. Elon Musk has officially announced the launch of public access to the Grok 4.5 model from SpaceXAI tomorrow, July 9, 2026. According to him, this is an Opus-class AI model that not only surpasses its counterparts in data processing speed but also offers significantly lower usage costs.
Technical Specifications and Timing
Grok 4.5 is built on the V9 architecture with a colossal 1.5 trillion parameters from xAI. The model's training utilized Cursor data on programming, making it particularly strong in coding tasks. Internal testing at SpaceX and Tesla began on June 28, and according to Musk, the results exceeded expectations — the model is already comparable to Opus and, in some aspects, even surpasses it.
Notably, the launch of Grok 4.5 is almost synchronized with the expansion of access to OpenAI's GPT-5.6 models. OpenAI has announced the release of GPT-5.6 Sol, Terra, and Luna to the public as early as Thursday. Thus, users worldwide will have the opportunity to simultaneously test the flagship products of the two industry giants.
History of Rivalry
This coincidence of launches is not accidental but another twist in a long-standing rivalry. Musk, who was a co-founder of OpenAI in 2015, left the board of directors in 2018. In 2024, he filed a lawsuit against OpenAI and Sam Altman, accusing them of deviating from the original non-profit principles. Although the court dismissed the lawsuit due to missed filing deadlines, the tension between the parties has not dissipated.
Now that both platforms are becoming accessible to a broad audience, developers and businesses will be able to evaluate the capabilities of the flagship models in real-world conditions. This is not just a technological competition — it is a battle for the market that will shape the future of AI infrastructure for years to come.
My Expert Assessment: The synchronized launch of Grok 4.5 and GPT-5.6 is an ideal scenario for the market. Direct competition will force both companies to accelerate innovation and lower prices, which ultimately benefits end users. However, I would recommend that investors and developers not rush to conclusions: the first weeks will show which model truly handles real-world tasks, not just benchmarks.