Vol. I · No. 99MON, JUL 27, 2026
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China’s DeepSeek previews new AI model a year after jolting US rivals

Chinese AI company DeepSeek released a preview of its hotly anticipated next-generation AI model V4 on Friday, saying that the open-source model can compete with leading closed-source systems from US rivals including Anthropic, Google, and OpenAI. DeepSeek says V4 marks a major improvement over prior models, especially in coding, a capability that has become central to AI agents and helped drive the success of tools like ChatGPT Codex and Claude Code. The release is also a milestone for China's chip industry, with DeepSeek explicitly highlighting compatibility with domestic Huawei technology....

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Claude + Codex = Excellence

I have a 20x Claude account and have been using Opus 4.7 exclusively for all code. I noticed even after asking multiple times to do code review, Opus would still not get there 100%. Here is what I did: 1. Installed Codex cli and ran it in a Tmux session 2. Claude created PR for Codex to review 3. Claude pinged Codex via shell so I can see the Codex thinking and approve any file permission. Claude set a wake up window. 4. Codex reviewed and updated comments in PR. 5. Claude woke up and validated the comments before editing code. Surprisingly Claude missed a lot of things...

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Opus 4.7 is weird

Reddit user reports subjective quality regression in Claude Opus 4.7 compared to 4.5, citing reduced intuition and increased need for explicit guidance.

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Without prompting, Claude signed off with 'Narf.'

Any idea why? I've searched the sub and didn't find an answer. Results online are, personality, long token count, and a reference to a DOD contract. This is a fairly new chat. Narf is a reference to Pinky and The Brain.

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/model claude-opus-4-6

I've been using 4.7 since it was released, gave it my best effort, for complex tasks it is still a hair better than 4.6 but for any sort of planning that involves discussion, 4.6 is so much easier to work with and communicate with. i feel like they reduced the thinking budget and the model responded by just putting those tokens into the response, every response is a book that goes over things multiple times; significantly more false assumptions. I find myself having to go back to a previous message, then explaining something to avoid a false assumption in basically every planning/direct...

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Tested Claude AI LLM Models' Effort Levels - Low To Max: How Claude Opus 4.7 differs

I benchmarked and compared Claude Opus 4.5 vs Opus 4.6 vs Opus 4.7 vs Sonnet 4.6 testing effort levels from low, medium, high, xhigh, max as curious about token usage/costs and performance within Claude Code https://ai.georgeliu.com/p/tested-claude-ai-llm-models-effort Hope folks find this useful. The test was done with Claude Code v2.1.117 which is apparently the fixed versions from Anthropic's post-mortem announcement.

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Claude is connecting directly to your personal apps like Spotify, Uber Eats, and TurboTax

Claude users can access more apps with Anthropic's AI now thanks to new connectors for everything from hiking to grocery shopping. Anthropic already supported connecting numerous work-related apps to Claude, like Microsoft apps, but this expansion focuses on personal apps like Audible, Spotify, Uber, AllTrails, TripAdvisor, Instacart, TurboTax, and others. Some of these apps, such as Spotify, already have similar connectors in OpenAI's ChatGPT. Once an app is connected, Claude will suggest relevant connected apps directly in your conversations, like using AllTrails for hike recommendations. A...

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Moderator questions

Reddit thread asking ClaudeAI subreddit moderator bot about moderation work and concerns about model obsolescence.

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Open AI got to AGI first!

Reddit user speculates OpenAI reached AGI and will outpace Anthropic; compares Codex and Claude Code features.

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Common GPT 5.5 pricing misconception.

GPT 5.5 offers better token efficiency than GPT 5.4 despite higher per-token pricing; comparison to Claude Opus 4.7 shows GPT 5.5 5-10x cheaper on ARC-AGI-2.

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Anthropic’s Mythos breach was humiliating

Anthropic's tightly controlled rollout of Claude Mythos has taken an awkward turn. After spending weeks insisting the AI model is so capable at cybersecurity that it is too dangerous to release publicly, it appears the model fell into the wrong hands anyway. According to Bloomberg, a "small group of unauthorized users" has had access to Mythos - whose existence was first revealed in a leak - since the day Anthropic announced plans to offer it to a select group of companies for testing. Anthropic says it is investigating. That's a rough look for a company that has built its brand on taking AI ...

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New type of limits - any ideas?

Claude introduces segmented rate limits: Claude Design separate quota, daily routine runs cap (0/15), and faster reset cycles; suggests potential billing/product changes.

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