Nex AGI: Nex-N2.5-Mini
nex-agi/nex-n2.5-mini:free
Access Nex-N2.5-Mini from Nex AGI using Puter.js AI API.
Get Started// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms", {
model: "nex-agi/nex-n2.5-mini:free"
}).then(response => {
document.body.innerHTML = response.message.content;
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.chat("Explain quantum computing in simple terms", {
model: "nex-agi/nex-n2.5-mini:free"
}).then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
# pip install openai
from openai import OpenAI
client = OpenAI(
base_url="https://api.puter.com/puterai/openai/v1/",
api_key="YOUR_PUTER_AUTH_TOKEN",
)
response = client.chat.completions.create(
model="nex-agi/nex-n2.5-mini:free",
messages=[
{"role": "user", "content": "Explain quantum computing in simple terms"}
],
)
print(response.choices[0].message.content)
curl https://api.puter.com/puterai/openai/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_PUTER_AUTH_TOKEN" \
-d '{
"model": "nex-agi/nex-n2.5-mini:free",
"messages": [
{"role": "user", "content": "Explain quantum computing in simple terms"}
]
}'
Model Card
Nex-N2.5-Mini is the smallest model in Nex AGI's Nex-N2.5 family, a multimodal agentic line that also includes Nex-N2.5-Pro and Nex-N2.5-Max. It takes text and image input, supports function calling, and runs in three reasoning modes (non-thinking, adaptive thinking by default, and high thinking).
Nex AGI targets it at computer use, web browsing, and agentic coding, where the model explores a codebase, makes multi-file edits, runs commands, and checks the result through visual feedback before continuing.
On Nex AGI's own benchmark table it scores 73.4 on Terminal-Bench 2.1, 71.2 on OSWorld-Verified, and 43.8 on SWE-Bench Pro. Claude Opus 5 leads on all three in the same table (89.1, 83.4, and 79.2).
This listing offers a 262K context window at no cost, which leaves room for long agent loops over browser and desktop sessions.
Context Window 262K
tokens
Max Output 236K
tokens
Input Cost $0
per million tokens
Output Cost $0
per million tokens
Input text, image
modalities
Tool Use Yes
Release Date Sep 8, 2026
Model Playground
Try Nex-N2.5-Mini instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.
More AI Models From Nex AGI
Frequently Asked Questions
You can access Nex-N2.5-Mini by Nex AGI through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.
Yes, it is free if you're using it through Puter.js. With the User-Pays Model, you can add Nex-N2.5-Mini to your app at no cost — your users pay for their own AI usage directly, making it completely free for you as a developer.
| Price per 1M tokens | |
|---|---|
| Input | $0 |
| Output | $0 |
Nex-N2.5-Mini was created by Nex AGI and released on Sep 8, 2026.
Nex-N2.5-Mini supports a context window of 262K tokens. For reference, that is roughly equivalent to 524 pages of text.
Nex-N2.5-Mini can generate up to 236K tokens in a single response.
Nex-N2.5-Mini accepts the following input types: text, image. It produces: text.
Yes, Nex-N2.5-Mini supports tool use (function calling), allowing it to interact with external tools, APIs, and data sources as part of its response flow.
Yes — the Nex-N2.5-Mini API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Get started with Puter.js
Add Nex-N2.5-Mini to your app without worrying about API keys or setup.
Read the Docs View Tutorials