Is Nex-N2.5-Mini available on FastMetal?

Not at the moment. GLM 5.3 Flash, from the same lab, is available on the FastMetal API today.

What is the context window of Nex-N2.5-Mini?

262,144 tokens, shared between the prompt and the response.

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Nex AGI

nex-n2.5-mini-free

Not Available

Nex-N2.5-Mini

Global: Nex AGI Nex-N2.5-Mini - agentic coding model, free to try

262,144 tokens

Specifications

Modalities

Input

text

Output

text

Max Output Tokens

235,929

Reasoning Configuration

Default: Thinking on (effort: high)
Selectable effort levels: high
medium
none
Turning thinking off: Possible (reasoning.enabled: false)

How to control thinking, and what it costs

Data policy

Prompt retention: Unknown — we could not confirm
Training: Unknown — not declared

"Unknown" does not mean "safe". It means we could not confirm it.

Whether a provider trains on prompts is a declared value from our terms with them. Retention is determined from the upstream listing for every host this model can reach. Neither is guessed.

Code Examples

curl https://api.fastmetal.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "nex-n2.5-mini-free",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

How Nex-N2.5-Mini actually answers

Real responses to our standard prompts, recorded on FastMetal.

Count the number of 'r's in 'strawberry'

Count the number of 'r's in 'strawberry'. Explain your reasoning step by step.

The word **“strawberry”** has **3** letter **“r”**s. Step by step: 1. Write out the letters: **s t r a w b e r r y** 2. Find each **r**: - The 3rd letter is **r** - The 8th letter is **r** - The 9th letter is **r** So, there are **3** “r”s in **“strawberry.”**

1.7s response228 output tokens

Debug This Error

I'm getting the following error in my Node.js application: TypeError: Cannot read properties of undefined (reading 'map') at UserList (/app/components/UserList.js:12:25) at renderWithHooks (/app/node_modules/rea…

The error means this line is failing: ```js users.map(...) ``` `users` is `undefined` when `UserList` renders, but `.map()` only works on arrays. That usually happens because: 1. `UserList` is rendered without a `users` prop: ```jsx <UserList /> ``` 2. The parent passes `undefined`: ```jsx const [users, setUsers] = useState(undefined); ``` 3. Async data has not loaded yet, so `users` is still undefined. 4. Your API response is shaped differently than expected. --- ## Quick fix: default to an empty array ```jsx function UserList({ users = [] }) { return ( <ul> {users.map(user => ( <li key={user.id}>{user.name}</li> ))} </ul> ); } ``` Then render it…

5.5s response926 output tokens

Code Review

Please review the following Python function and suggest improvements for readability, performance, and best practices: def get_data(url, retries=3): import requests import time for i in range(retries):…

Here are the main improvements I’d suggest: - Move imports to module level. - Avoid bare `except:`; it catches programming errors, `KeyboardInterrupt`, etc. - Use `raise_for_status()` instead of manually checking `status_code`. - Use specific exception handling for HTTP errors, request errors, JSON errors, etc. - Add retry backoff instead of fixed sleeps. - Validate that the JSON response has the expected shape. - Prefer `item.get("active") is True` over `item["active"] == True`. - Consider logging failures instead of silently returning `[]`. Example improved version that preserves the original behavior of returning `[]` on failure: ```python import logging import time from typing import…

68.1s response9845 output tokens

Compare these answers side by side with other models →

Frequently asked questions

Is Nex-N2.5-Mini available on FastMetal?: Not at the moment. GLM 5.3 Flash, from the same lab, is available on the FastMetal API today.
What is the context window of Nex-N2.5-Mini?: 262,144 tokens, shared between the prompt and the response.

Models you can use on FastMetal