Grok 3 Think

Grok 3 Think is a selectable reasoning mode in the Grok 3 family designed for complex problem-solving: it engages longer “deliberation,” corrects itself, and can show a raw reasoning trace via the API for auditability. Under the hood, Grok 3’s reinforcement-learning–enhanced training enables multi-step reasoning across mathematics, coding, and analysis. As it emphasizes depth, Think typically uses more compute/latency than default replies. The underlying Grok-3 spec offers a 131,072-token context window, function calling, and structured outputs; pricing on the API rate card is $3/M input tokens and $15/M output tokens. End-user access is offered in X’s Grok experience (Premium+ / SuperGrok tiers), while developers can use Grok-3 via the xAI API.