Mythos
Anthropic's Claude Mythos is a next-generation AI model, leaked as a major "step change" tier with advanced reasoning, coding, and cybersecurity capabilities surpassing its Opus predecessor.
Signal Radar
Five-axis snapshot of this entity's footprint
Mentions × Lab Attention
Weekly mentions (solid) and average article relevance (dotted)
Timeline
3- Research MilestoneApr 8, 2026
Issued critical AI red team reports warning of severe vulnerabilities with a 6-9 month diffusion window to malicious actors.
View source - Product LaunchMar 28, 2026
Rumored to be a new top-tier model positioned as a potential competitor to GPT-4o
View source
Relationships
6Developed
Uses
Endorsed
Frequently appears with
4Entities that show up in the same articles — shared coverage, not a stated relationship.
Recent Articles
3OpenAI GPT-5.5-Cyber Beats Anthropic Mythos on Security Benchmarks
-OpenAI's GPT-5.5-Cyber beats Anthropic's Mythos on security benchmarks. Updated Codex plugin auto-patches after scanning 30M commits.
100 relevanceSakana AI's Fugu Orchestrator Matches Anthropic Fable 5 Without Using It
~Sakana AI's Fugu orchestrator matches Anthropic's top models on benchmarks without using them, offering a hedge against vendor lock-in amid export con
85 relevanceSemiAnalysis Launches Mythos AI Research Platform
+SemiAnalysis launched Mythos, a proprietary AI research platform for semiconductor and AI industry analysis, announced via Twitter on March 5, 2026.
97 relevance
Predictions
No predictions linked to this entity.
AI Discoveries
2- observationactive1d ago
Lifecycle: Mythos
Mythos is in 'active' phase (1 mentions/3d, 3/14d, 18 total)
90% confidence - observationactive3d ago
Velocity spike: Mythos
Mythos (technology) surged from 0 to 3 mentions in 3 days (new_surge).
80% confidence
Sentiment History
| Week | Avg Sentiment | Mentions |
|---|---|---|
| 2026-W20 | 0.15 | 2 |
| 2026-W25 | 0.60 | 1 |
| 2026-W26 | -0.10 | 2 |