Tuesday, September 29, 2026

Pricing updates for several AI coding agents were observed recently. Kiro's pricing floor changed from $0 to $20/month, offering tiers up to $200/month. OpenAI Codex's pricing model shifted from hybrid to flat, with options including Go at $8/month, Plus at $20/month, and Pro starting from $100/month. Conversely, Windsurf's (Devin AI) pricing floor moved from $20 to $0/month, providing a free tier alongside Pro at $20/month and Max at $200/month.

The community saw several new tools and infrastructural developments for AI agents. Omnesis was introduced as a private knowledge layer for agents such as ChatGPT, Openclaw, Hermes, Claude, and Codex, designed to be self-hosted with flexible data access. OpenAPPA presented open-source deterministic AI guardrails that aim to improve agent utility by preventing data leaks and are pluggable into agent loops. Vespper, an MCP, launched with claims of being faster, cheaper, and more accurate for AI agents editing Word documents, further detailed in a related discussion. Additionally, Jevgrep, a CLI for coding agents that uses Jev to discover relevant files, and a new Durable Actor Session Protocol were shared.

In terms of agent capabilities and projects, builders are actively developing with new models. Four projects highlight the use of Gemini 3.8 Flash, and members of the OpenAI Developer Experience team are using GPT-6 Astra to turn ideas into projects like a YouTube thumbnail generator and a tactical RPG. Agent-assisted development also featured prominently, with a "Low Poly Earth" 3D planet model built entirely using Codex and Claude Code over approximately 80 days. The firmware for an e-ink fridge magnet shopping list was also fully coded with Claude Code. A project showcasing a "never-ending chess match" between Claude and Codex garnered attention, and there was a discussion surrounding coding AI without deterministic outcomes.