Calculate the cost of using grok-3-mini-fast-beta from xAI for your AI applications
Pricing data last updated:
Mode: Chat
Max: 131,072 tokens
Max: 131,072 tokens
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grok-3-mini-fast-beta is a chat model from xAI, one of 38 chat models they offer. It is priced at $0.60 per 1M input tokens and $4.00 per 1M output tokens, ranking 1174 out of 2161 chat models by cost and cheaper than 45% of models in this category. grok-3-mini-fast-beta supports function calling, reasoning, web search, prompt caching — one of only 7 chat models with this combination. It accepts up to 131K input tokens.
Note: Use the interactive calculator above to estimate costs for your specific usage patterns.
Use the maximum token limits shown above to understand the model's capacity. This model can handle up to 131,072 input tokens. The maximum output length is 131,072 tokens.
At $0.60 per 1M input tokens and $4.00 per 1M output tokens, grok-3-mini-fast-beta ranks 1174 out of 2161 chat models by input cost. It is more expensive compared to the median of $0.55 for chat models, and is cheaper than 45% of models in this category.
grok-3-mini-fast-beta is one of 38 xAI chat models, one of only 7 chat models combining function calling, prompt caching, reasoning, web search.
| Model | Provider | Input / 1M tokens | Output / 1M tokens | vs grok-3-mini-fast-beta |
|---|---|---|---|---|
| gpt-5.4-mini | Azure | $0.75 | $4.50 | +25% |
| gpt-5.4-mini-2026-03-17 | Azure | $0.75 | $4.50 | +25% |
| gemini-3-flash-preview | Vertex AI | $0.50 | $3.00 | -17% |
Similar chat models from other providers
Yes. grok-3-mini-fast-beta costs $0.60 per 1M input tokens compared to gpt-5.4-mini's $0.75 per 1M input tokens, making it 25% more affordable. Both are chat models and share support for vision, function calling, reasoning, web search, prompt caching, structured output.
grok-3-mini-fast-beta input pricing is $0.60 per 1M tokens, which is 9% above the median of $0.55 for chat models. It ranks 1174 out of 2161 chat models by input cost, making it cheaper than 45% of models in this category. For output, it costs $4.00 per 1M tokens compared to the median of $1.44.
Among xAI's 38 chat models, grok-3-mini-fast-beta ranks 15 by input cost. Its combination of function calling, prompt caching, reasoning, web search is shared by only 6 other chat models.
The most comparable chat models to grok-3-mini-fast-beta are: gpt-5.4-mini from Azure ($0.75/1M input tokens); gpt-5.4-mini-2026-03-17 from Azure ($0.75/1M input tokens); gemini-3-flash-preview from Vertex AI ($0.50/1M input tokens); gemini-3-flash-preview from Google Gemini ($0.50/1M input tokens). These alternatives were selected based on similar capabilities, pricing, and provider diversity. You can compare any of these models in detail using the Bifrost Model Library.
grok-3-mini-fast-beta is priced based on input and output tokens. Use the interactive calculator at the top of this page to estimate costs for your specific workload. Enter your expected input and output tokens volume and the calculator will show the total cost breakdown. For reference, processing 1M input tokens costs $0.60 and generating 1M output tokens costs $4.00.
