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AI News Digest
Week 4, Sep 2026
2026-09-21 — 2026-09-27
models
Claude Opus 5.5: Anthropic releases the newest version of its flagship model
GPT-6 Sol and Luna: Prices cut by 50% with Luna at $0.10/Mio input tokens
MiMo v2.6: Open model reaches the pareto front in multi-agent game evaluations
GPT-6 Astra: OpenAI model breaks an Enigma message that has resisted solution since 2005
Ember-1: Fireworks tackles analysis paralysis to optimize thinking model efficiency
top-rated papers
OmniEdu: Open K-12 foundation models achieve 76.69% F1 on K12-Bench
Realtime-Venus: Full-duplex models exceed Gemini 3.1 Live and GPT-4o on all continuation metrics
RRSI: Agent self-improvement framework boosts benchmark scores using 30% fewer policy tokens
tools
Ollaya: An open-source project for running Jev-style decision models
resources
Transformers Explained Visually: An interactive web tool for understanding attention mechanisms
community
Attention is all you have: How prolonged focus shapes human thoughts and behavior
Jev in 25 Lines of Python: A parody project recreating the decision model