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Grok 4 Fast Reasoning

grok-4-fast-reasoning

Grok 4 Fast is xAI's latest multimodal model with SOTA cost-efficiency and a 2M token context window. It comes in two flavors: non-reasoning and reasoning.

Available at 7 Providers

Provider Source Input Price ($/1M) Output Price ($/1M) Description Free
vercel vercel Input: $0.20 Output: $0.50 Grok 4 Fast is xAI's latest multimodal model with SOTA cost-efficiency and a 2M token context window. It comes in two flavors: non-reasoning and reasoning.
poe poe Input: $0.20 Output: $0.50 Grok 4 Fast Reasoning delivers exceptional performance for tasks requiring logical thinking and problem-solving. With a 2M token context window and state-of-the-art cost-efficiency, it handles complex reasoning tasks with accuracy and speed, making advanced AI capabilities accessible to more users.
azure models-dev Input: $0.20 Output: $0.50 Provider: Azure, Context: 2000000, Output Limit: 30000
helicone models-dev Input: $0.20 Output: $0.50 Provider: Helicone, Context: 2000000, Output Limit: 2000000
azurecognitiveservices models-dev Input: $0.20 Output: $0.50 Provider: Azure Cognitive Services, Context: 2000000, Output Limit: 30000
azureai litellm Input: $0.43 Output: $1.73 Source: azure_ai, Context: 131072
xai litellm Input: $0.20 Output: $0.50 Source: xai, Context: 2000000