Author's Description
Grok 3 Mini is a lightweight, smaller thinking model. Unlike traditional models that generate answers immediately, Grok 3 Mini thinks before responding. It’s ideal for reasoning-heavy tasks that don’t demand extensive domain knowledge, and shines in math-specific and quantitative use cases, such as solving challenging puzzles or math problems. Transparent "thinking" traces accessible. Defaults to low reasoning, can boost with setting `reasoning: { effort: "high" }` Note: That there are two xAI endpoints for this model. By default when using this model we will always route you to the base endpoint. If you want the fast endpoint you can add `provider: { sort: throughput}`, to sort by throughput instead.
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
xAI: Grok 3 Mini Beta demonstrates moderate speed performance, ranking in the 29th percentile across benchmarks, and offers moderate pricing, placing it in the 33rd percentile. A standout feature is its exceptional reliability, achieving a 100% success rate across all 7 benchmarks, indicating minimal technical failures. The model excels in several key areas. It achieves perfect accuracy in General Knowledge, Reasoning, and Ethics benchmarks, often being the most accurate model at its price point and speed. Its "thinking before responding" approach, coupled with accessible "thinking" traces, likely contributes to its strong performance in reasoning-heavy tasks. Grok 3 Mini also shows impressive accuracy in Coding (94.0%, 92nd percentile) and effectively mitigates hallucinations (98.0% accuracy). While its Instruction Following accuracy is strong (71.7%, 84th percentile), it's not perfect. The model's primary strength lies in its precision and problem-solving capabilities, particularly in quantitative and logical challenges, making it ideal for tasks requiring deep thought rather than extensive domain knowledge.
Model Pricing
Current Pricing
Feature | Price (per 1M tokens) |
---|---|
Prompt | $0.3 |
Completion | $0.5 |
Input Cache Read | $0.075 |
Price History
Available Endpoints
Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
---|---|---|---|---|
xAI
|
xAI | x-ai/grok-3-mini | 131K | $0.3 / 1M tokens | $0.5 / 1M tokens |
xAI
|
xAI | x-ai/grok-3-mini | 131K | $0.6 / 1M tokens | $4 / 1M tokens |
Benchmark Results
Benchmark | Category | Reasoning | Strategy | Free | Executions | Accuracy | Cost | Duration |
---|
Other Models by x-ai
|
Released | Params | Context |
|
Speed | Ability | Cost |
---|---|---|---|---|---|---|---|
xAI: Grok 4 Fast | Sep 18, 2025 | — | 2M |
Text input
Image input
Text output
|
★ | ★★★★★ | $$$$ |
xAI: Grok Code Fast 1 | Aug 26, 2025 | — | 256K |
Text input
Text output
|
★★ | ★★★★★ | $$$$$ |
xAI: Grok 4 | Jul 09, 2025 | — | 256K |
Text input
Image input
Text output
|
★ | ★★★★★ | $$$$$ |
xAI: Grok 3 Mini | Jun 10, 2025 | ~2.7T | 131K |
Text input
Text output
|
★★ | ★★★★★ | $$$$$ |
xAI: Grok 3 | Jun 10, 2025 | ~2.7T | 131K |
Text input
Text output
|
★★★ | ★★★★ | $$$$$ |
xAI: Grok 3 Beta | Apr 09, 2025 | ~2.7T | 131K |
Text input
Text output
|
★★★ | ★★★★ | $$$$$ |
xAI: Grok 2 Vision 1212 Unavailable | Dec 14, 2024 | — | 32K |
Text input
Image input
Text output
|
★★★★ | ★★★★ | $$$$$ |
xAI: Grok 2 1212 Unavailable | Dec 14, 2024 | — | 131K |
Text input
Text output
|
★★★★ | ★★★★ | $$$$$ |
xAI: Grok Vision Beta Unavailable | Nov 18, 2024 | — | 8K |
Text input
Image input
Text output
|
★★★★★ | ★★★ | $$$$$ |
xAI: Grok Beta Unavailable | Oct 19, 2024 | — | 131K |
Text input
Text output
|
★★★★★ | ★★★★★ | $$$$$ |