MultiO

MultiO

Five S LLC
Ultramarine 1 Flash

Ultramarine 1 Flash

Paper Instruments
5.0 out of 5 stars
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About

MultiO is a web-based AI workspace that brings models from providers including OpenAI, Anthropic, Google, xAI and Meta into one subscription. Auto routing sends each message to a cost-efficient model suited to the request; users can also choose or pin a model, or compare responses from up to three models side by side. Each message includes a receipt showing its exact token charge at published rates. The workspace includes deep research with citations, image and video generation, live voice, projects, and documents with Word, Excel and PDF export. Its coding assistant works with GitHub repositories and can open pull requests. Developers can also use MultiO's API. A no-card free trial includes 3,000,000 tokens, and the Pro plan costs $20 per month.

About

Ultramarine 1 Flash is a hosted large language model offered through an API for developers and organizations building AI-assisted professional workflows. It is designed for knowledge-work tasks across areas such as finance, law, consulting, and operations, including research, analysis, and preparation of document-based deliverables. Applications can send prompts and receive streamed or standard responses, use reasoning controls and custom tool calls, and request structured output. The API accepts image inputs and supports OpenAI-compatible chat-completion and Responses formats, as well as Anthropic Messages-compatible requests. Developers can connect through the OpenAI or Anthropic SDKs, Claude Agent SDK, or Claude Code, and can use the model with Paper Instruments' Word, PowerPoint, and Excel libraries. Usage is billed by tokens against a prepaid balance.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers

Audience

Developers and organizations building AI-enabled knowledge-work tools in finance, law, consulting, and operations.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$20/month
Pro costs $20 per month. The free trial includes 3,000,000 tokens and does not require a payment card.
Free Version Not Supported
Free Trial Supported

Pricing

$0.15/1M input tokens
Usage is prepaid and billed per token: input costs $0.15 per 1M tokens, cached input costs $0.03 per 1M tokens, and output, including reasoning, costs $0.50 per 1M tokens.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5

Pros & Cons from Real Users

Pros

  • It's so good at professional work that does not have one obvious “correct” answer. It is especially strong for things like research, financial analysis, diligence, writing, business operations, and turning messy information into a polished deliverable. The cost-performance ratio is probably the most impressive part. Paper Instruments reports an average cost of just $0.13 per task on its internal knowledge-work benchmark, while scoring 59.3 compared with 57.8 for Claude Fable 5 and 55.1 for GPT-5.6 Sol.

Cons

  • The main downside is that coding is not really its biggest strength. Its Terminal-Bench and DeepSWE scores are competitive, but models like GPT-5.6 Sol, Gemini 3.8 Flash, and DeepSeek V4.1 Flash still score higher on those coding-focused benchmarks.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Five S LLC
multio.ai

Company Information

Paper Instruments
Founded: 2025
United States
www.paperinstruments.com/ultramarine

Alternatives

Alternatives

Geekflare Chat

Geekflare Chat

Geekflare
5.0 out of 5 stars
GPT-6.1 Terra

GPT-6.1 Terra

OpenAI
5.0 out of 5 stars
GPT-6.1 Sol

GPT-6.1 Sol

OpenAI
5.0 out of 5 stars
MiniMax M3.1 Flash

MiniMax M3.1 Flash

MiniMax
5.0 out of 5 stars
Claude Haiku 5.5

Claude Haiku 5.5

Anthropic
5.0 out of 5 stars

Categories

Categories

AI Models Supported

Integrations

Claude Agent SDK Not Supported
Claude Code Not Supported
GitHub Supported
Model Context Protocol (MCP) Supported
OpenAI Not Supported
OpenAI Agents SDK Not Supported

Integrations

Claude Agent SDK Supported
Claude Code Supported
GitHub Not Supported
Model Context Protocol (MCP) Not Supported
OpenAI Supported
OpenAI Agents SDK Supported
Claim MultiO and update features and information
Claim MultiO and update features and information
Claim Ultramarine 1 Flash and update features and information
Claim Ultramarine 1 Flash and update features and information