grok-4.20-beta-0309-reasoning

by Grok

Grok 4.20 Beta is our latest flagship model, offering industry-leading speed and agent tool-invocation capabilities. It combines the lowest hallucination rate on the market with strict prompt adherence, enabling it to consistently deliver precise and factual responses.

API Pricing

Input$2 / 1M tokens
Output$6 / 1M tokens
Cache read$0.2 / 1M tokens

Specifications

Context window2,000,000 tokens
Modalitiestext, image
Featuresthinking, tools, function_calling, structured_outputs, long_context

More from Grok

Use grok-4.20-beta-0309-reasoning via the AIHubMix unified API — one interface for every major LLM.