Overview & Capability
xAI's flagship frontier foundation model trained on the Colossus 100k H100 cluster. Features Think Mode for step-by-step mathematical reasoning, competitive coding, and real-time knowledge synthesis.
Key Highlights
- Deep reasoning mode for complex code & math
- Real-time live search grounding across the web and X
- High context window with low latency
Robbie's Independent Take
Verified: 2026-10-11
Best evaluated within a bounded workspace using version control. Configure strict tool approvals and MCP permission gates before granting terminal or file execution access. Monitor token spend carefully when running multi-turn autonomous refactoring loops.
Alternatives & Replaces
- ChatGPT Plus ($20/mo)
- Claude Pro ($20/mo)