When was Grok 4.20 Non-Reasoning released?

xAI released Grok 4.20 Non-Reasoning on 10 Mar 2026. It is available through the Opper gateway.

Does Grok 4.20 Non-Reasoning support zero data retention?

Yes. Grok 4.20 Non-Reasoning is available with zero data retention on xAI through the Opper gateway. Other routes carry zero data retention with abuse monitoring; see each route's window in the data-handling section.

Where is Grok 4.20 Non-Reasoning hosted?

Grok 4.20 Non-Reasoning runs on US hosting routes through the Opper gateway.

Is Grok 4.20 Non-Reasoning trained on prompts and outputs?

No. Every hosting route for Grok 4.20 Non-Reasoning is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for Grok 4.20 Non-Reasoning?

Yes. A GDPR Data Processing Agreement is available on at least one route serving Grok 4.20 Non-Reasoning. Contact hello@opper.ai to receive it.

Grok 4.20 Non-Reasoning

by xAI

Released 111 days after Grok 4.1 Fast Reasoning · All xAI releases

Grok 4.20 0309 Non-Reasoning is the speed-optimized variant of xAI's March 2026 Grok 4.20 generation, built on a native multi-agent architecture in which several specialized agents work in parallel on a shared backbone and synthesize an answer. This variant skips explicit chain-of-thought, returning direct responses for latency-sensitive applications. It accepts text and image input and supports native tool use and structured outputs across a 1 million token context window, with real-time integration of X data. The multi-agent design aims to reduce factual errors compared to single-pass approaches, while the non-reasoning mode keeps time-to-first-token low for interactive systems. Grok 4.20 was released in March 2026 as xAI's first multi-agent generation. The non-reasoning variant is the performance-oriented path for this architecture when you prioritize response speed over visible reasoning steps.

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Key info

Input

Output

Features

Context window

Max output

—

Input price

$1.25 /1M$0.20 cache read

Output price

$2.50 /1M

Released

10 Mar 2026

US residency available
Zero data retention on pay-as-you-go
No training by default
GDPR DPA available

Available routes

Grok 4.20 Non-Reasoning runs on 2 different routes through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below. Some routes also sell priority processing: the same model at another price, picked per request with service_tier. How service tiers work.

Provider	Region	Zero data retention	Training	Input	Output	Cache read
xAI	US		No	$1.25	$2.50	$0.20
xAI	US		No	$1.25	$2.50	$0.20

Live routes and prices as JSON: api.opper.ai/v3/models?q=xai%2Fgrok-4.20-0309-non-reasoning

Uptime and availability

Grok 4.20 Non-Reasoning runs on a single route through the Opper gateway today, so its availability is that provider's availability.

98.41%route uptime, last 30 days

Single route, no failover target within this model.

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.

Data handling per route

Each route hosting Grok 4.20 Non-Reasoning has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

xAI — United States🇺🇸

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. US; SCCs; DPA available.

Zero data retention: Yes. Nothing is logged, held for abuse monitoring or used for training.
Training: No training on customer data.
Logging: None
Abuse monitoring: On by default, keeps nothing
Caching: Content cached for replay
GDPR DPA: DPA available
Transfer mechanism: SCCs

xAI — United States🇺🇸

Zero data retention with abuse monitoring: prompts and outputs are kept for up to 30 days for abuse monitoring only, and are not used for training. No training on customer data. US; SCCs; DPA available.

Zero data retention: With abuse monitoring, 30-day window.
Training: No training on customer data.
Logging: Abuse monitoring (30-day retention)
Abuse monitoring: On by default, keeps nothing
Caching: Content cached for replay
GDPR DPA: DPA available
Transfer mechanism: SCCs

Benchmarks

Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#297 of 687 LLMs

TierEfficient

Intelligence Index14.6

Reasoning & knowledge

GPQA Diamond

79%

Humanity's Last Exam

25%

Long-context reasoning

25%

Agentic & tool use

Terminal-Bench Hard

22%

τ²-Bench Telecom

70%

Math & instruction following

IFBench

48%

See full leaderboard →Benchmarks via Artificial Analysis · View on AA

Get started

Call Grok 4.20 Non-Reasoning through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.

Grok 4.20 Non-Reasoning is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

1import OpenAI from "openai";
2
3const client = new OpenAI({
4  apiKey: process.env.OPPER_API_KEY,
5  baseURL: "https://api.opper.ai/v3/compat",
6});
7
8const completion = await client.chat.completions.create({
9  model: "xai/grok-4.20-0309-non-reasoning",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);