Capabilities · Actor
Claude Fable 5 / Claude Mythos 5 (Anthropic)
Anthropic's frontier models subject to a US government export control directive suspending all access as of June 12, 2026.
Forecast horizon
First known export control action targeting specific named AI models; may set precedent for future controls.
Connections
Connections · 3
How this node ties into the rest of the map, and the evidence behind each link.
from · publishes 4/10
Anthropic Anthropic developed and deployed Fable 5 and Mythos 5 as frontier models.
+4 growth to · applies to 3/10
CogManip: Multi-Turn LLM Manipulation Benchmark CogManip evaluates frontier models including GPT-5.4 and DeepSeek-V3.2; Claude-class models are in scope for such manipulation benchmarks.
+3 growth from · constrains 3/10
Trump AI Executive Order (June 2026) US government export control directive suspended all access to Fable 5 and Mythos 5.
+3 growthSignal sources
Signal sources
Dated facts from primary sources in this direction.
Task horizon doubling Mar 2025
The length of software tasks AI agents can do autonomously at 50% reliability has doubled about every 7 months — and since 2024 closer to every ~3 months.
METR → Benchmarks saturating Apr 2025
In one year scores rose by 18.8, 48.9 and 67.3 points on MMMU, GPQA and SWE-bench; real-world software solve rate jumped from 4.4% to 71.7%.
Stanford HAI — AI Index 2025 → Autonomous coding 2025–2026
On SWE-bench Verified (500 real GitHub issues), autonomous coding agents reached ~80–86% by late 2025, up from under 50% in early 2025.
Epoch AI →