Released 35 days after Grok 4.5 · All xAI releases
Grok 4.6 arrived on August 12, 2026 as the successor to Grok 4.5, and xAI held the underlying foundation constant rather than pretraining anew. The improvement came from a longer supplemental training run, regenerated supervised fine-tuning trajectories and reinforcement learning inside agentic environments, and the model now checks and verifies its own work more often before moving on to the next step. The gains concentrate on agentic work, with DeepSWE moving from 54 to 65.9 and APEX-Agents from 47.1 to 57.5 against Grok 4.5. It holds a 500K token context window with vision input, native tool calling and structured output, and carries a knowledge cutoff of February 1, 2026, which makes it a fit for coding agents and long-horizon automation that have to stay coherent across many steps.
Grok 4.6 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 | Enterprise | No | $2.00 | $6.00 |
Grok 4.6 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 4.6 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.
Zero data retention is available via Opper Enterprise contract. 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 4.6 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-4.6",messages: [{ role: "user", content: "Hello" }],});console.log(completion.choices[0].message.content);
Side-by-side on privacy, EU hosting, pricing, and benchmarks.
