xAI: Grok 3 Mini

Text input Text output
Author's Description

A lightweight model that thinks before responding. Fast, smart, and great for logic-based tasks that do not require deep domain knowledge. The raw thinking traces are accessible.

Key Specifications
Cost
$$$$$
Context
131K
Parameters
2.7T (Rumoured)
Released
Jun 10, 2025
Speed
Ability
Reliability
Supported Parameters

This model supports the following parameters:

Tool Choice Reasoning Include Reasoning Response Format Seed Top P Temperature Top Logprobs Tools Structured Outputs Logprobs Stop Max Tokens
Features

This model supports the following features:

Tools Reasoning Response Format Structured Outputs
Performance Summary

xAI: Grok 3 Mini demonstrates moderate speed performance, ranking in the 30th percentile across benchmarks, and offers moderate pricing, placing it in the 34th percentile. A standout feature is its exceptional reliability, achieving a 100% success rate across all benchmarks, indicating consistent and stable operation. The model excels in several critical areas. It achieved perfect accuracy in Hallucinations, General Knowledge, Reasoning, and Ethics benchmarks, often being the most accurate model at its price point and speed. This highlights its strong logical processing and ethical reasoning capabilities. Its Coding performance is also impressive at 95.0% accuracy (95th percentile), showcasing proficiency across various programming languages. Instruction Following and Mathematics benchmarks yielded strong results at 76.8% and 93.0% accuracy respectively, indicating robust problem-solving skills. Email Classification was solid at 98.0%. While generally strong, its speed performance is not its primary competitive advantage. Overall, Grok 3 Mini is a reliable, smart, and cost-effective option, particularly well-suited for logic-based tasks where accuracy and reliability are paramount.

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
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