Pareto (Union Alpha)

Ask Pareto (Union Alpha) a question, generate code, or analyze reference images, PDFs, and text files. Get one independent response with usage-based token pricing.

Reference files (optional)
Max: 50 MB

Pareto (Union Alpha) by Unbiased, via OpenRouter. Each run starts fresh with only your current prompt and attachments. Usage is charged by input and output tokens. Model details and provider policies

Price: ~$5.00 / 1M input tokens, ~$15.00 / 1M output tokens · Results deleted after: 1 day
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Bring a question, a rough idea, or a paragraph to improve. Get a response from Pareto (Union Alpha).

Features

Your prompt, its response

Ask for code, an explanation, a plan, or help with your reference files. The model can use images, PDFs, and text files.

Pareto, formerly Union Alpha

The model introduced as Union Alpha is now available as Pareto by Unbiased through OpenRouter. Use it for coding, research, and general-purpose tasks.

How to use it

Write one prompt

Describe the result you want and optionally attach images, PDFs, or text files as references.

Generate and inspect

Get a text response in the format you request. Each run starts fresh, with no conversation memory.

Before you try it

No. Each run sends only your current prompt and reference files. Previous results may appear in your Dazo request history, but are not sent as conversation context.

Your prompt and attachments are sent through OpenRouter to Unbiased, the provider of Pareto. Review their current data policies before submitting personal or confidential information.

No. The free Union Alpha testing period has ended. Pareto uses token-based pricing at twice the provider cost: currently $5 per million input tokens and $15 per million output tokens. The normal minimum charge applies.

Upload JPEG, PNG, WebP, or GIF images, PDFs, and text files such as TXT, Markdown, CSV, JSON, HTML, CSS, JavaScript, and XML. PDFs are converted to text through OpenRouter’s free document parser; use image uploads when visual details matter. Audio, video, and Office documents are not supported here.

The model has a 262,144-token context window shared by input and output, with up to 131,072 output tokens. Available credits may reduce the output allowance. References also count toward the context window.

One prompt. One fresh response. Use Pareto for your next question or coding task.