Unbiased: Pareto 26.10 Preview
unbiased/pareto-26.10-preview
Try Pareto 26.10 Preview for free in your browser, and add it to your app for free with Puter.js AI API.
Try it free Add to your app// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms", {
model: "unbiased/pareto-26.10-preview"
}).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: "unbiased/pareto-26.10-preview"
}).then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
Model Card
Pareto 26.10 Preview is a composite AI model from Unbiased AI, built by Circuit & Chisel, a remote-first team in the US and Canada. It runs several models on the same request and returns one answer, and it is aimed at research, coding, and agentic workflows.
On Unbiased's preliminary, vendor-run benchmarks it scores 69.9% on DeepSWE v1.1 at $0.24 per task, 50.8% on Terminal-Bench 4.0, 49.9% on Humanity's Last Exam (text only), and 92.4% on GPQA-Diamond. On DeepSWE it is level with Fable 5 (70.0%, $13.50 per task). On Terminal-Bench, GPT 6 Astra (58) and Claude Fable 5.1 (56) score higher.
It accepts text and image input, supports tool calling, and has a 1,048,576-token context window with up to 131,072 output tokens. It suits engineering teams, platform teams, and agent builders who want a low cost per task.
Context Window 1M
tokens
Max Output 131K
tokens
Input Cost $0.8
per million tokens
Output Cost $3.2
per million tokens
Tool Use Yes
Release Date Oct 1, 2026
Try Pareto 26.10 Preview for free
Try Pareto 26.10 Preview instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.
More AI Models From Unbiased
Frequently Asked Questions
You can access Pareto 26.10 Preview by Unbiased 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.
Pareto 26.10 Preview is free to try with a Puter account. Every account includes a free AI allowance, and you can chat with it in the playground on this page. You can upgrade your account anytime for a larger allowance.
Pareto 26.10 Preview is free to integrate using the Puter.js AI API. With the User-Pays Model, you can add AI to your app for $0, since users cover their own AI usage through their Puter account.
| Price per 1M tokens | |
|---|---|
| Input | $0.8 |
| Output | $3.2 |
Pareto 26.10 Preview was created by Unbiased and released on Oct 1, 2026.
Pareto 26.10 Preview supports a context window of 1M tokens. For reference, that is roughly equivalent to 2,097 pages of text.
Pareto 26.10 Preview can generate up to 131K tokens in a single response.
Yes, Pareto 26.10 Preview supports tool use (function calling), allowing it to interact with external tools, APIs, and data sources as part of its response flow.
Yes — the Pareto 26.10 Preview 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.
Add Pareto 26.10 Preview to your app for free
Developers can integrate Pareto 26.10 Preview for free using the Puter.js AI API.
With the User-Pays Model, each user covers their own AI usage instead of the developer.