Grok 3 Mini is a smaller thinking model that verbalizes its reasoning before responding, making its internal thought process inspectable. It exposes reasoning tokens so you can follow how it arrived at an answer, which helps with debugging and trust in agentic workflows. It is suited to logic-based tasks, math, and structured problem solving where deep domain knowledge is not required. The model supports adjustable reasoning effort with low and high settings, structured outputs, and tool calling, making it a fit for applications that balance cost and reasoning quality on lighter workloads. With a 131k token context window and a May 2025 release, Grok 3 Mini offers a fast, compact alternative to larger reasoning models while keeping the transparent thinking that characterizes xAI's reasoning approach.
Grok 3 Mini runs on 1 route through the Opper gateway. Compare residency, ZDR, and training posture at a glance — full data-handling detail per route below.
| Provider | Region | Zero data retention | Training | Input | Output |
|---|---|---|---|---|---|
| US | Not by default | No | $0.30 | $0.50 |
Grok 3 Mini runs on a single route through the Opper gateway today, so its availability is that provider's availability.
Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.
Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.
Each route hosting Grok 3 Mini has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.
Zero data retention is not on by default — abuse monitoring, 30-day retention. No training on customer data. US; SCCs; DPA available.
Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.
Call Grok 3 Mini through the Opper gateway with one API key. Let your coding agent set it up, or call it directly — Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.
Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.
import OpenAI from "openai";const client = new OpenAI({apiKey: process.env.OPPER_API_KEY,baseURL: "https://api.opper.ai/v3/compat",});const completion = await client.chat.completions.create({model: "xai/grok-3-mini",messages: [{ role: "user", content: "Hello" }],});console.log(completion.choices[0].message.content);
Side-by-side on privacy, EU hosting, pricing, and benchmarks.
