SpaceXAI and Cursor Drop Grok 4.5 to Undercut Top AI Rivals | eWeek

SpaceXAI and Cursor Drop Grok 4.5 to Undercut Top AI Rivals

Grok AI on smartphone with Elon Musk in the background.

Grok 4.5 targets enterprise AI users with lower-cost coding and workflow tools. Image: Algi Febri Sugita/ZUMA Press Wire/Shutterstock

Jul 9, 2026
3 minute read
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Grok 4.5 is entering the enterprise AI race with a familiar pitch: faster performance at a lower price. 

It's the first release since SpaceXAI went public and the first model born from the SpaceX-Cursor partnership. Rather than positioning it as a general chatbot, the companies are marketing Grok 4.5 as a tool for coding, agentic tasks, and broader "knowledge work" spanning legal, financial, and office tasks, such as building Excel models or drafting Word documents.

Playing the price and efficiency card

SpaceXAI is positioning Grok 4.5 as an "Opus-class model, but faster, more token-efficient and lower cost," according to a post by Elon Musk on X. The company claims the model operates at 80 tokens per second (TPS) and boasts twice the token efficiency of comparable models, enabling it to complete tasks in under half the steps.

The pricing structure is designed to aggressively undercut premium enterprise rivals:

ModelInput Cost (per M tokens)Output Cost (per M tokens)
Grok 4.5 (Base)$2.00$6.00
Anthropic Opus 4.7$5.00$25.00
OpenAI GPT 5.6 Luna$1.00$6.00

While internal benchmarks indicate Grok 4.5 outperforms Anthropic's Opus 4.8 on several key metrics, a report from Axios notes that the model does not beat the latest, largest flagship models from OpenAI or Anthropic. Grok 4.5 is available immediately via the SpaceXAI console, Grok Build, and all Cursor subscription plans, though it remains unavailable in the EU.

The compute crunch and market tradeoffs

The launch of Grok 4.5 introduces a fascinating business paradox for SpaceXAI.

The model was trained using the same compute capacity that SpaceXAI currently leases to its chief rivals, Google and Anthropic. As Musk’s firm scales up its internal training requirements for future iterations, it faces an immediate strategic tradeoff: consume its massive server architecture internally to chase raw performance, or preserve those hardware leases as a lucrative, steady revenue stream.

Additionally, entering the specialized corporate sectors of Wall Street and corporate law firms demands impeccable precision. While a token-efficient pricing model appeals to CFOs tracking AI infrastructure bills, Grok 4.5's current inability to outperform the absolute top-tier models from Anthropic and OpenAI means buyers must decide whether a lower price tag justifies trailing slightly behind the cutting edge of raw reasoning power.

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Balancing enterprise automation and risk

For corporate tech buyers, Grok 4.5 offers a compelling option to significantly reduce operational costs for high-volume automated pipelines, such as software development, basic financial modeling, and legal document review.

However, its expanded capabilities arrive amid heightened regulatory scrutiny. The release coincides with a chaotic week in AI, during which the Trump administration briefly slowed OpenAI's GPT 5.6 rollout over national security concerns. 

Because Grok 4.5 ships with advanced cybersecurity capabilities, Cursor has had to implement strict content moderation frameworks designed to detect and block bad actors while preserving legitimate security patch engineering. Organizations adopting Grok 4.5 must carefully monitor these built-in guardrails to ensure their automated pipelines do not accidentally trigger compliance flags or security blocks during normal operation.

Related News: Want to understand the bigger picture? Explore how Elon Musk is connecting AI across SpaceXAI, Tesla, Neuralink, and SpaceX. 

Aminu Abdullahi

Aminu Abdullahi is a B2C and B2B technology and finance writer with more than six years of experience covering enterprise IT, cybersecurity, cloud computing, artificial intelligence, fintech, business software, and emerging technologies. His work has appeared in publications including TechRepublic, eWEEK, Channel Insider, Geekflare, Enterprise Networking Planet, eSecurity Planet, CIO Insight, and Webopedia. With a technical background in computer science, he specializes in translating complex technology topics into clear, accessible content for business leaders and decision-makers.

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