AI digest: 2026-10-04

Highlights

Starting content for the library: 22 topic pages and 15 source notes covering the basics, current model lineups, agents, tooling, and practices.

• New GPT-6 lineup: OpenAI now offers three tiers (Astra, Sol, Luna); GPT-6.1 Sol was reported on 2026-09-29.
• Gemini 4 Argon (2026-09-30) is Google's most capable model, available at first only to security partners.
• MCP 2026-07-28 is the largest spec revision since launch: stateless core, MCP Apps, Tasks.

New sources

Models

• Claude models overview: current Claude lineup, IDs, context windows, prices.
• Introducing GPT-6 Sol and Luna: OpenAI's mid and low GPT-6 tiers.
• Gemini 4 Argon: Google's most capable model, limited release.
• Three new Gemini models, July 2026: 3.6 Flash, 3.5 Flash-Lite, 3.5 Flash Cyber.

Agents and tooling

• Building effective agents: workflow and agent patterns.
• The 2026-07-28 MCP specification: stateless MCP.
• Agent Skills overview: SKILL.md and progressive disclosure.
• Prompt caching docs: prefix caching rules.
• OWASP Top 10 for LLM Applications: security risk checklist.

Research

• Attention Is All You Need: the transformer.
• RAG paper: retrieval-augmented generation.
• ReAct: reasoning plus acting loop.
• Chain-of-thought prompting: step-by-step reasoning.
• InstructGPT: RLHF post-training.
• LoRA: parameter-efficient fine-tuning.

Topic pages updated

• All 22 pages in topics created.

Later update: open-weight primary sources

No news was published after the morning baseline. The daily run instead filled a gap: the open-weight models page had no primary sources.

Models

• DeepSeek-V4-Pro model card: 1.6T/49B MoE, 1M context, MIT licence.
• Qwen3.5-397B-A17B model card: hybrid Gated DeltaNet MoE, Apache 2.0.
• Gemma 4 model card: five sizes from E2B to 31B, now Apache 2.0.
• Introducing Mistral 3: Mistral Large 3, ~675B/41B MoE, Apache 2.0.
• The Llama 4 herd: Scout and Maverick MoE models, 10M context on Scout.

Topic pages updated

• models/open-weight: comparison table from primary sources; date conflicts noted.
• fundamentals/transformers: efficient and hybrid attention in production models.

Later update: framework release notes

No news was published since the previous run. The daily run filled a gap instead: the framework landscape page had no primary release-note sources.

Frameworks and libraries

• Microsoft Agent Framework version 1.0: GA on 2026-04-03 for .NET and Python, replacing Semantic Kernel and AutoGen.
• OpenAI Agents SDK v0.23.0: hardening of sandboxes, sessions, MCP, and realtime agents.
• Google ADK (Python) v2.11.0: cancellation, tool approval in workflows, MCP SDK 2.x.
• Pydantic AI v2.54.0: clai2 agent, sandboxed workspaces, plugins.

Topic pages updated

• frameworks/landscape: table of latest versions; current state from release notes.
• tooling/mcp: first framework adopting MCP SDK 2.x.