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SpaceXAI Releases Grok 4.5, Undercutting OpenAI and Anthropic

WireByte Staff · July 8, 2026

SpaceXAI has released Grok 4.5, a powerful language model capable of coding and agentic work, priced at $2 per million input tokens and $6 per million output tokens. This move aims to undercut OpenAI and Anthropic's models, with SpaceXAI claiming its model is faster, more token-efficient, and lower-cost. The release marks a pivot towards paying business customers, with the company rebuilding its team and targeting Wall Street clients.

Key points

  • SpaceXAI has released Grok 4.5, a language model trained alongside AI coding startup Cursor, which it acquired for $60bn.
  • Grok 4.5 is priced at $2 per million input tokens and $6 per million output tokens, undercutting OpenAI and Anthropic's models.
  • The model is designed for coding, agentic work, and tasks such as software engineering, legal, and financial work, with added cybersecurity features.
  • SpaceXAI claims Grok 4.5 is faster, more token-efficient, and lower-cost than Anthropic's Opus 4.8 and OpenAI's GPT-5.6 Luna.
  • The release marks a pivot towards paying business customers, with SpaceXAI rebuilding its team and targeting Wall Street clients.

SpaceXAI Releases Grok 4.5, Undercutting OpenAI and Anthropic

SpaceXAI has released Grok 4.5, a powerful language model capable of coding and agentic work. The model is priced at $2 per million input tokens and $6 per million output tokens, undercutting OpenAI and Anthropic's models.

The release marks a pivot towards paying business customers, with SpaceXAI rebuilding its team and targeting Wall Street clients. Grok 4.5 is designed for tasks such as software engineering, legal, and financial work, with added cybersecurity features.

SpaceXAI claims Grok 4.5 is faster, more token-efficient, and lower-cost than Anthropic's Opus 4.8 and OpenAI's GPT-5.6 Luna. The model is the result of training alongside AI coding startup Cursor, which SpaceXAI acquired for $60bn.

The release of Grok 4.5 is a significant move in the AI industry, with SpaceXAI aiming to undercut its competitors and establish itself as a major player in the market.

Sources

WireByte Staff — Editorial Team

The WireByte editorial team synthesises technology news from multiple primary sources, verifies the facts, and links every source. Articles are produced with AI assistance and reviewed under our editorial policy.