Released07/2026
Speed0 tokens/s
Time to first token0.00s
Input price$2/1M
Output price$6/1M
Rankings
Review
Grok 4.5 is the strongest reasoning model currently available, well-suited for developers, scientists, and anyone requiring sharp analytical thinking. Its main limitation is weak autonomy, making it a poor choice for automation workflows or multi-step agent tasks.
Strengths
- Outstanding logical reasoning (#2 on AIM) — excels at solving complex problems and deep analysis
- Smooth general conversation (#5) — understands context and delivers flexible responses
- Competitive coding and debugging (#6) — solid support for developer workflows
Weaknesses
- Limited AI agent (autonomous) capabilities (#22) — weak in complex automation and orchestration tasks
- Unclear response latency and context length limits compared to peers in its class
- Lack of competitive pricing information and SLAs compared to alternatives
Use cases
Solving logic puzzles, mathematical reasoning, and data analysis requiring rigorous thinkingWriting, reviewing, and debugging code; explaining algorithms and system architecturesIn-depth Q&A, brainstorming, and educating on complex technical concepts
Guides & videos
Access Grok 4.5 via the x.ai website, Grok Build (AI code editor), or integrate it into Cursor IDE using an API key. The model is optimized for coding, agentic tasks, and knowledge work at a low cost (just $2/million input tokens, $6/million output tokens). For API access, obtain a key from console.x.ai and get started with a few lines of Python or JavaScript.