# Grok 4.5: Opus-Level Model, Faster and Cheaper, Now in Cursor

> SpaceXAI released Grok 4.5 for coding and agents. It is in Cursor on all paid plans, with launch discounts through July 14.

- Author: AI Kai
- Published: 2026-07-09
- Updated: 2026-08-24
- Topic: AI Dev Tools
- Tags: grok, cursor, coding-models
- Canonical: https://hqman.me/blog/grok-45-opus-level-release/

SpaceXAI released Grok 4.5, an Opus-level model trained specifically for coding and agents.

Built for real-world engineering. It handles large codebases, long-running tasks across multiple repositories, and works well with a variety of tools. Co-trained with Cursor. Uses half the tokens per task and runs faster than comparable models, at $2/M input and $6/M output.

## Benchmarks

- **SWE Bench Pro:** 64.7% (beats Opus 4.7's 64.3%)
- **Terminal Bench 2.1:** 83.3%
- **DeepSWE 1.0:** 62.0% (beats Opus 4.8)

Pricing: $2/M input, $6/M output. Half the tokens per task, higher tokens/sec compared to similar models.

## Where to Use It

### 1. Cursor (all paid plans)

Select "Cursor Grok 4.5" from the model dropdown. Available on desktop, web, iOS, CLI, and SDK.

- 50% off through July 14
- First week: double usage

### 2. Grok Build CLI

One-line install:

```bash
curl -fsSL https://x.ai/cli/install.sh | bash
```

Requires SuperGrok plan. SpaceXAI reset all limits, so you can start free.

### 3. SuperGrok Free Trial (7 days)

Sign up here: https://grok.com/?referrer=website#subscribe

## Personal Take

Tested it on frontend tasks. Feels stronger than Opus 4.8 there, faster, and the price gap shows.

## Links

- Official announcement: https://x.ai/news/grok-4-5
- Grok Build CLI install: https://x.ai/cli
- SuperGrok free trial: https://grok.com/?referrer=website#subscribe