Ultramarine 1 Flash

Ultramarine 1 Flash

Paper Instruments
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About

CheapTokens is a pay-as-you-go API service for developers building AI agents, coding workflows, and applications with open-weight language models. Its model catalog focuses on families such as DeepSeek, GLM, and MiniMax. The service provides OpenAI-compatible and Anthropic-compatible API endpoints. Developers connect supported tools using a CheapTokens API key, a base URL, and a model ID. Usage is billed from a prepaid USD balance, with separate input and output token rates and no monthly subscription. Prices are listed per million tokens. The website provides API documentation, request examples, and integration guides for supported coding assistants and agent tools.

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, AI engineers, startups, and teams building AI agents, coding assistants, automation workflows, and LLM-powered applications.

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

Screenshots and Videos

Pricing

5$
Free Version Not 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:

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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

CheapTokens
Founded: 2026
Ireland
cheaptokens.dev/en/

Company Information

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

Alternatives

Alternatives

Run BiOS

Run BiOS

UltraSafe AI Inc.
MiniMax

MiniMax

MiniMax AI

Categories

LLM API Supported

Categories

AI Models Supported

Integrations

Claude Code Supported
Aider Supported
Claude Agent SDK Not Supported
Cline Supported
Cursor Supported
OpenAI Not Supported
OpenAI Agents SDK Not Supported
OpenClaw Supported

Integrations

Claude Code Supported
Aider Not Supported
Claude Agent SDK Supported
Cline Not Supported
Cursor Not Supported
OpenAI Supported
OpenAI Agents SDK Supported
OpenClaw Not Supported
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Claim CheapTokens and update features and information
Claim Ultramarine 1 Flash and update features and information
Claim Ultramarine 1 Flash and update features and information