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Description

Claude Mythos 5.1 represents Anthropic's latest advancement in the Mythos-class of models, tailored for sophisticated applications in cybersecurity, biology, scientific investigation, programming, and extensive knowledge-oriented tasks. While it shares the same foundational architecture as Claude Fable 5.1, it is differentiated by unique safety measures: Fable 5.1 is widely accessible, whereas Mythos 5.1 is limited to select trusted access programs designed with specific safeguards for cybersecurity and life sciences research. This model establishes a new benchmark in performance for autonomous coding and showcases unparalleled cyber capabilities among all Anthropic models released thus far. In the realm of scientific research, Mythos 5.1 can effectively handle specialized tools and intricate workflows related to molecular design, computational biology, and various technical fields. During testing by Anthropic, it successfully engineered high-affinity protein binders for multiple targets, achieving its highest recorded hit rate to date. Additionally, it demonstrated proficiency in optimizing seven different open-source deep learning models focused on protein and genomics. By pushing the boundaries of what is possible, Mythos 5.1 is positioned to make significant contributions to future research and development endeavors.

Description

Ultramarine 1 Flash is a powerful hosted large language model that developers and organizations can access via an API, specifically tailored for enhancing AI-driven professional workflows. It caters to various knowledge work sectors including finance, law, consulting, and operations, facilitating tasks such as research, detailed analysis, and the preparation of documentation. Users can submit prompts to the application and receive either streamed or standard responses, while also utilizing reasoning controls, custom tool calls, and the option to request structured outputs. The API is capable of processing image inputs and is compatible with both OpenAI's chat-completion formats and Anthropic Messages, ensuring versatile integration. Developers can interface with the model through several SDKs, including those from OpenAI and Anthropic, as well as the Claude Agent SDK and Claude Code, and can effectively employ it alongside Paper Instruments' suite of tools for Word, PowerPoint, and Excel. Additionally, the billing structure is based on token usage against a prepaid balance, allowing for flexible financial management of resources. This model represents a significant step forward in the automation of high-level professional tasks, pushing the boundaries of what AI can accomplish in workplace settings.

API Access

Has API Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Claude Agent SDK Yes 
Claude Code Yes 
AiAssistWorks Yes 
CSS Yes 
Claude Cowork Yes 
Claude Max Yes 
Cosmos Yes 
Databricks Yes 
Dessix Yes 
Devin Yes 
Emergent Yes 
LaunchLemonade Yes 
Muse Yes 
Node.js Yes 
OpenClaw Yes 
Scalestack Yes 
Shipper.now Yes 
Skymel Yes 
Vercel AI Gateway Yes 
Verdent Yes 

Integrations

Claude Agent SDK Yes 
Claude Code Yes 
AiAssistWorks No 
CSS No 
Claude Cowork No 
Claude Max No 
Cosmos No 
Databricks No 
Dessix No 
Devin No 
Emergent No 
LaunchLemonade No 
Muse No 
Node.js No 
OpenClaw No 
Scalestack No 
Shipper.now No 
Skymel No 
Vercel AI Gateway No 
Verdent No 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

$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 Trial No 
Free Version No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Anthropic

Founded

2021

Country

United States

Website

claude.ai

Vendor Details

Company Name

Paper Instruments

Founded

2025

Country

United States

Website

www.paperinstruments.com/ultramarine

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