Grok 4 Fast Reasoning from xAI (Grok). Price tier: budget. Input: $0.20/1M tokens. Output: $0.50/1M tokens. Context window: 4000K tokens. 2 variants available.
Grok 4 Fast Reasoning (xAI (Grok)): Input $0.2000/1M, Output $0.5000/1M. (Flagship variant)
Grok 4 Fast Reasoning (Azure OpenAI): Input $0.2000/1M, Output $0.5000/1M.
