xAI: Grok 3 Mini Beta

Text input Text output
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
Cost
$$$$$
Context
131K
Parameters
2.7T (Rumoured)
Released
Apr 09, 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 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
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