Ultramarine 1 Flash

Ultramarine 1 Flash

Paper Instruments
+
+

Related Products

  • Anaconda
    625 Ratings
    Visit Website
  • Gemini Enterprise Agent Platform
    1,161 Ratings
    Visit Website
  • FinOpsly
    3 Ratings
    Visit Website
  • Cloudflare
    2,048 Ratings
    Visit Website
  • StackAI
    55 Ratings
    Visit Website
  • Google AI Studio
    41 Ratings
    Visit Website
  • LTX
    182 Ratings
    Visit Website
  • Passwork
    129 Ratings
    Visit Website
  • ONLYOFFICE Docs
    715 Ratings
    Visit Website
  • Compute with Hivenet
    4 Ratings
    Visit Website

About

OpenCheese AI is a hosted AI gateway and API for developers who want to connect applications and coding tools to multiple AI models through a unified service. It provides OpenAI-compatible endpoints and an Anthropic Messages-compatible interface, with model selection, API-key management, usage and balance tracking, and access to models from providers including OpenAI, Anthropic, Google, and DeepSeek. Developers can configure supported coding clients and applications to send requests through OpenCheese rather than managing separate provider credentials for each connection. The service offers both credit-based usage and time-limited plans with included balances; available models, rates, and free-model options depend on the selected model and plan. It is intended for developers evaluating or building text, coding, and image-generation workflows with hosted AI models.

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

Software 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

$9.99/month
Credit Usage has no subscription fee ($0/month); requests use purchased account credits, and the plan lists three free models. Squeaky Curd (Pro) is $9.99/month for a 30-day access period and includes a $15 balance. Aged Gouda (Power) is $47.99/month with a $76 balance; Whole Wheel (Ultra) is $99.99/month with a $200 balance. Plans do not automatically renew. Model access and rates vary.
Free Version Supported
Free Trial Not 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:

Review this Software

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 Not 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

OpenCheese AI
Founded: 2026
Saint Kitts and Nevis
opencheese.dev/

Company Information

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

Alternatives

Alternatives

Categories

AI Gateways Supported

Categories

AI Models Supported

Integrations

Claude Code Supported
Claude Agent SDK Not Supported
Claude Desktop Supported
Codex CLI Supported
IntelliJ IDEA Supported
LobeHub Supported
OpenAI Not Supported
OpenAI Agents SDK Not Supported
OpenCode Supported
Visual Studio Code Supported
Zed Supported

Integrations

Claude Code Supported
Claude Agent SDK Supported
Claude Desktop Not Supported
Codex CLI Not Supported
IntelliJ IDEA Not Supported
LobeHub Not Supported
OpenAI Supported
OpenAI Agents SDK Supported
OpenCode Not Supported
Visual Studio Code Not Supported
Zed Not Supported
Claim OpenCheese AI and update features and information
Claim OpenCheese AI and update features and information
Claim Ultramarine 1 Flash and update features and information
Claim Ultramarine 1 Flash and update features and information