SpaceXAI releases Grok 4.5, challenging Anthropic's Opus-class models

SpaceXAI has released Grok 4.5, an 'Opus-class' model that directly challenges Anthropic's top offerings. The new model features enhanced agentic tools for web search, X/Twitter integration, and code execution, alongside claims of improved token efficiency and lower latency compared to its predecessor. While internal benchmarks suggest performance rivaling Claude Opus 4.5, independent evaluations are still pending. This release intensifies the AI model competition, with SpaceXAI emphasizing practical agentic capabilities as a key differentiator. AI

IMPACT Sets new SOTA on agentic capabilities, pressuring competitors to integrate similar tools.

RANK_REASON Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=1 ai=1.0]

Read on dev.to — LLM tag →

• Anthropic
• Claude Fable 5
• Claude Opus 4.5
• GPT-5.6 Sol
• Grok 4
• Grok 4.5
• OpenAI
• Opus-class
• SpaceXAI
• Tesla

• model release
• product

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