# Prompts for Grok: be direct, ask for checks

> Templates that ask Grok for concrete outputs and quick validation steps.

Source: Promptea — https://www.promptea.me/en/models/grok · Language: English · Last updated: 2026-11-09

## Quick tips

- Keep the ask direct: task + constraints + format.
- Request a short sanity-check section (assumptions, risks).
- Prefer concrete deliverables (bullets, diff, checklist).

## Current models Promptea supports

Capabilities come from the provider’s official documentation; each entry shows the date it was last verified.

### Grok 4.7 (default)

The most capable Grok (Sep 2026) and xAI's recommendation for code and chat (500k context). Direct tone; define tone and informality for best results.

- Context window: 500K tokens · max output: —
- Input: text, image · output: text
- Latency: balanced · structured output: yes · tool use: yes · native search: yes
- Strengths: reasoning, coding, writing, search
- How to prompt it: Reasoning can't be turned off: reasoning_effort runs low to xhigh (default high) — lower it for latency-sensitive agents. Put stable content first and the question last, enable web/X search for current events, and specify tone — it is direct by default.
- Verified: 2026-09-24 — [source](https://docs.x.ai/developers/grok-4-7)

### Grok 4.3

Grok with a 1M-token context at a lower price. Useful for long material; separate source text from instructions.

- Context window: 1M tokens · max output: —
- Input: text, image, pdf · output: text
- Latency: fast · structured output: yes · tool use: yes · native search: yes
- Strengths: reasoning, writing, long context
- How to prompt it: reasoning_effort supports 'none' (default low): use it for fast replies and raise it when reasoning is needed. For long documents, separate source material from instructions with XML tags or headings, and keep a stable prefix to exploit caching.
- Verified: 2026-09-24 — [source](https://docs.x.ai/developers/models/grok-4.3)

### Grok Build 0.1

Agentic-coding-specialized Grok (powers the Grok Build CLI; also serves the grok-code-fast-1 alias). Ask for correctness criteria and edge cases.

- Context window: 256K tokens · max output: —
- Input: text, image · output: text
- Latency: fast · structured output: yes · tool use: yes · native search: no
- Strengths: coding, reasoning
- How to prompt it: Point it at the specific files and sections relevant to the task instead of dumping the whole repo — irrelevant context degrades it. Structure goals, constraints, and context with headings or XML tags, state explicit correctness criteria, and iterate in small diffs.
- Verified: 2026-09-24 — [source](https://docs.x.ai/developers/models/grok-build-0.1)

## Templates

### Fast critique (assumptions)

```text
Critique this plan.
Return:
- 5 assumptions
- 5 risks
- 3 alternatives
Plan:
"""[paste]"""
```

[Open in Promptea](https://www.promptea.me/en/analyzer?prompt=Critique+this+plan.%0AReturn%3A%0A-+5+assumptions%0A-+5+risks%0A-+3+alternatives%0APlan%3A%0A%22%22%22%5Bpaste%5D%22%22%22&purpose=text&target=grok)

### Code bug triage

```text
Bug report:
Expected:
Actual:
Logs:
Code snippet:

Return:
- most likely cause
- 3 checks to confirm
- fix suggestion
```

[Open in Promptea](https://www.promptea.me/en/analyzer?prompt=Bug+report%3A%0AExpected%3A%0AActual%3A%0ALogs%3A%0ACode+snippet%3A%0A%0AReturn%3A%0A-+most+likely+cause%0A-+3+checks+to+confirm%0A-+fix+suggestion&purpose=code&target=grok)

## Frequently asked questions

### Why ask for sanity checks?

It forces the model to surface assumptions instead of confidently inventing missing context.