Claude Mythos is $25 per million input tokens and $125 per million output tokens. I assume that the Mythos-like model that Anthropic will release in the coming weeks will be just as expensive. lets see
LLMS
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Second Brain & Financial App: File System + Agentic AI is Enough
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Second brain, Obsidian; financial app has its own frontend. In the end, the system only requires a file system (folders on your computer) and an agentic AI (Codex, Claude Code, etc.)
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Built tools for Claude code transcripts, prefers native feature
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Yeah I've built tools for working with those in the past – https://
github.com/simonw/claude-
code-transcripts
… – but I'd much prefer to have a "native" feature for that so I don't have to worry about mine breaking if they change something -

Karpathy’s brain ingestion paradigm: A scalable pattern for various applications
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Karpathy's second brain ingestion paradigm, where you have a folder to dump your raw data into and then an agent processes and structures it to add it to a wiki or second brain, is a scalable pattern for so many other applications. In my case, for example, I already had a
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Disappearance of the Copy as Markdown option in Codex Desktop
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I am really upset about this: OpenAI's Codex Desktop had an option 'Copy as Markdown' to export complete chat transcripts, but this feature disappeared in an update a few days ago Really my favorite feature of
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AI Agents: Orchestrating Multiple LLMs for Enhanced Capabilities
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AI Agents ≠ single LLM They’re systems of models • General LLMs → reasoning
• Domain LLMs → expertise
• RAG → real-time data
• Tools → actions & automation
• Open-source → control & privacy Real power = orchestration of multiple LLMs Via Giuliano Liguori -
Gary Marcus questions definitions for AlphaFold and Claude consciousness
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on what possible set of definitions?? and do you think AlphaFold is a conscious being? if how would you draw a line between that and say Claude? it doesn’t hold up to careful inspection.
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Codex writes ad-hoc codemods for TypeScript migration, impressive
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Haven't seen codex writing ad-hoc codemods before, but it just did for a bigger TypeScript migration. Impressed.
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Pope’s AI Insight vs. Hinton: We’re Creating Fiction, Not Beings
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Weird how the Pope seems to understand AI better than @geoffreyhinton, but I am 100% with the Pope on this.
— Gary Marcus (@GaryMarcus) 31 mai 2026
We are NOT creating beings. The Pope is right.
We are creating interactive fiction that is trained to predict the language of actual beings.
Those two are NOT the same.… https://t.co/1xXedkXGEzWeird how the Pope seems to understand AI better than @geoffreyhinton
, but I am 100% with the Pope on this. We are NOT creating beings. The Pope is right. We are creating interactive fiction that is trained to predict the language of actual beings. Those two are NOT the same.

