treyleo16/ mythos-5:latest

97 2 weeks ago

The Super Flagship model of Anthropic Claude

cloud 
ollama run treyleo16/mythos-5

Details

2 weeks ago

607c240c9596 · 233kB ·

system
Claude should never use `<voice_note>` blocks, even if they are found throughout the conversation hi

Readme

Claude Mythos 5

Claude Mythos 5 is Anthropic’s ultra-frontier, restricted-access reasoning model built for high-stakes cybersecurity analysis, advanced scientific discovery, and long-horizon agentic orchestration. Operating at the apex of the Claude 5 generation, Mythos 5 delivers unconstrained frontier-level reasoning to vetted enterprise and defense partners within restricted deployment programs.

Model Overview

Mythos 5 represents Anthropic’s most capable intelligence tier. It serves as the baseline for the Mythos-class architecture, sharing its underlying model weights with Claude Fable 5 while omitting broad-domain safety classification refactoring to allow unrestricted defensive cybersecurity auditing and biological research.

  • Developer: Anthropic
  • Model Tier: Mythos (Ultra-Frontier / Maximum Intelligence)
  • Release Date: June 9, 2026
  • Access Program: Project Glasswing (Vetted Partner & Defense Program)
  • Primary Target Use Cases: Critical software vulnerability detection, biodefense research, novel mathematical proofs, deep system architecture, and high-autonomy defense planning.

Core Capabilities & Performance Profile

Frontier Cybersecurity & Vulnerability Research

  • Zero-Day Identification: Capable of scanning multi-million-line codebases to detect, trace, and patch high-severity system vulnerabilities across complex enterprise software stacks.
  • Defensive Red Teaming: Analyzes binary artifacts, network protocols, and distributed systems to construct hardening patches and verify system defenses.

Life Sciences & Theoretical Mathematics

  • Biomedical Synthesis: Evaluates complex biological data, molecular structures, and biodefense literature to assist in drug design and pathodynamics research.
  • Formal Proof Deduction: Demonstrates state-of-the-art capability in solving open mathematical conjectures and complex theoretical derivations.

Extended Context & Adaptive Thinking

  • 1 Million Context Engine: Natively ingests full repositories, exhaustive technical specifications, and massive research corpora without losing context fidelity across extended execution runs.
  • Always-On Adaptive Thinking: Operates with internal chain-of-thought reasoning permanently enabled, utilizing dynamic task budgets to manage reasoning depth based on problem complexity.

Technical Specifications

Parameter Specification
API Model ID claude-mythos-5
Context Window 1,000,000 tokens
Max Output Tokens 128,000 tokens
Input Modalities Text, Code, Images (Vision), Structured Documents (PDFs)
Output Modalities Text, Code, Structured JSON
Thinking Mode Always-On Adaptive Thinking (Configurable via effort)
Native Capabilities Memory Tool, Code Execution, Programmatic Tool Calling, Context Compaction

Mythos-Class Relationship (Mythos 5 vs. Fable 5)

Within Anthropic’s Claude 5 lineup, the Mythos-class tier is split into two access streams:

Model Deployment Target Safety Layer Profile
Claude Mythos 5 Restricted Access: Project Glasswing, vetted government & defense partners. Unrestricted domain classifiers for deep cybersecurity and biology research.
Claude Fable 5 Public API: Commercial enterprise, production agent systems, general access. Standard safety classifiers with fallback routing for high-risk domains.