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What is Ultramarine 1 Flash?

Ultramarine 1 Flash serves as a robust hosted large language model accessible to both developers and organizations through an API, designed specifically to enhance workflows driven by AI in professional environments. It supports a range of industries such as finance, law, consulting, and operations, aiding in activities like research, comprehensive analysis, and document preparation. Users can interact with the application by submitting prompts and can expect either streamed or standard responses, while also having access to reasoning controls, custom tool calls, and structured output options. The API additionally supports the processing of image inputs and is compatible with OpenAI's chat-completion formats as well as Anthropic Messages, promoting flexible integration across various platforms. Developers can connect with the model using multiple SDKs, including those from OpenAI and Anthropic, as well as the Claude Agent SDK and Claude Code, allowing for seamless collaboration with Paper Instruments' tools for Word, PowerPoint, and Excel. Furthermore, the billing system operates on a token-based model against a prepaid balance, providing users with flexible financial resource management. This model not only advances the automation of sophisticated professional tasks but also challenges the conventional limits of AI capabilities in workplace scenarios. As a result, it encourages organizations to rethink their approach to integrating AI technologies into their daily operations.

What is Gemini 4 Argon?

Gemini 4 Argon is Google's frontier AI model for advanced reasoning and long-horizon workflows across software engineering, enterprise knowledge work, cybersecurity defense, and creative tasks. The model combines coding, multimodal understanding, reasoning, and multi-step execution to address complex professional workloads that may require sustained work across many steps. Google expanded Argon's maximum output from 64,000 tokens to 1 million tokens, allowing it to reason and generate hundreds of thousands of tokens within a single trajectory when required. Google engineers are already using Argon internally for tasks ranging from everyday debugging and algorithm design to large-scale migrations of C and C++ codebases to Rust. On DeepSWE v1.1, which evaluates real-world long-horizon software engineering, Google reports that Gemini 4 Argon achieves a score of 77.9%. The model also scored 51.3% on AutomationBench, a Zapier benchmark measuring end-to-end execution across business functions. Its knowledge-work capabilities include financial research, legal research and drafting, professional chart analysis, document-based workflows, and long-video understanding, with a reported 91.7% score on LVBench. Google has additionally trained Argon for defensive cybersecurity, enabling it to autonomously find, validate, and patch critical software vulnerabilities. Argon tied for first with a reported 68% score on CWE-bench v1 and has been evaluated on vulnerability discovery across complex codebases covering 20 programming languages. Google is using a phased release strategy that begins with trusted cyber defenders through the Fairwind Program while additional safeguards are tested before broader availability. The company plans to expand Gemini 4 Argon to developers, enterprises, and consumers, beginning with paid API customers and Google AI Ultra subscribers.

Media

Media

Integrations Supported

.NET
Agent Search on Gemini Enterprise Agent Platform
Bind AI
C#
Cursor
Devin Desktop
Gemini 3.5 Flash Cyber
Gemini Computer Use
Gemini Enterprise Agent Platform
Google AI Studio
Google Antigravity
HTML
Java
Kotlin
OfoxAI
OpenClaw
PowerShell
Python
Replit
Solidity

API Availability

Has API

API Availability

Has API

Pricing Information

$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.

Pricing Information

$2 per 1M tokens (input)
$2 per million input tokens and $10 per million output tokens, with cached input tokens priced at 95% off input token price.

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Not specified

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Paper Instruments

Date Founded

2025

Company Location

United States

Company Website

www.paperinstruments.com/ultramarine

Company Facts

Organization Name

Google

Date Founded

1998

Company Location

United States

Company Website

gemini.com

Categories and Features

AI Models

Not specified

Large Language Models

Not specified

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

AI Vision Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

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