When was Grok 4.5 released?

xAI released Grok 4.5 on 8 Jul 2026. It is available through the Opper gateway.

Does Grok 4.5 support zero data retention?

Yes. Grok 4.5 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 4.5 hosted?

See the per-route table for Grok 4.5 hosting locations and residency details.

Is Grok 4.5 trained on prompts and outputs?

No. Every hosting route for Grok 4.5 is configured so customer prompts and outputs are not used to train models by default.

Is a GDPR DPA available for Grok 4.5?

Yes. A GDPR Data Processing Agreement is available on at least one route serving Grok 4.5. Contact hello@opper.ai to receive it.

Grok 4.5

by xAI

Released 69 days after Grok 4.3 · All xAI releases

Grok 4.5 is xAI's July 2026 frontier release, aimed more squarely at software engineering and multi-step agentic work than the original Grok 4. Trained on data spanning coding, science, engineering, and mathematics, it offers a 500K token context window and reasoning that can be switched on or off per request, and xAI introduced it as its smartest model yet for coding, agentic tasks, and knowledge work. Its strengths center on sustained coding sessions and tool-driven execution, with function calling, structured outputs, and vision input rounding out the agentic toolkit. It fits code assistants, autonomous engineering workflows, and research agents that alternate between careful reasoning and fast tool calls within one long-running context.

Call Grok 4.5 on Opper with the OpenAI SDK. Sign up without a credit card. Get started

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Key info

Input

Output

Features

Context window

500K

Max output

—

Input price

$2.00 /1M$0.30 cache read

Output price

$6.00 /1M

Released

8 Jul 2026

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

Available routes

Grok 4.5 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	Multi		No	$2.00	$6.00	$0.30
xAI	Multi		No	$2.00	$6.00	$0.30

Live routes and prices as JSON: api.opper.ai/v3/models?q=xai%2Fgrok-4.5

Uptime and availability

Grok 4.5 runs on a single route through the Opper gateway today, so its availability is that provider's availability.

98.35%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 4.5 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

xAI — Multi-region

Zero data retention: nothing is logged, held for abuse monitoring or used for training. No training on customer data. GLOBAL; 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 — Multi-region

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. GLOBAL; 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#75 of 696 LLMs

TierStrong

Intelligence Index38.8

Coding Index72.4

Reasoning & knowledge

GPQA Diamond

93%

Humanity's Last Exam

43%

Long-context reasoning

79%

Coding

SciCode

55%

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

Get started

Call Grok 4.5 through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.

Grok 4.5 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-4.5",
10  messages: [{ role: "user", content: "Hello" }],
11});
12console.log(completion.choices[0].message.content);