A new, more powerful version of Anthropic's Mythos has come out of training. In itself, this is nothing extraordinary. What else could one expect? That Mythos is already the end? Of course not. This is only the beginning. What is exciting here is the
LLMS
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Equivalent SOTA model, open access, not free, no third-party dependency
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In fact, you have a model equivalent to SOTA models on many benchmarks, freely accessible, obviously not free because you have to account for the cost of hardware, but thus possibly without depending on a third-party actor. What is good when a new model comes out is to look at
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Comparing models is not limited to pure performance
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Comparing models is not just a matter of pure performance.
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Popularizing open-weights versus labs’ open source
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No, on the contrary, it's called popularizing. The term open-weights is very restrictive today. Especially when the labs themselves talk about open source.
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Issues with Codex and Code: division, lack of exploration and testing
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This is aside from the other key "software brain" problems of Codex and Code: dividing all work into front-end and back-end design, solving for the general case in a repeatable way, not testing or exploring idea spaces, testing for technical correctness but not other aspects…
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Top AI Papers of the Week: June 14-21 Highlights
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The Top AI Papers of the Week (June 14 – June 21): – PreAct
– SpatialClaw
– Back on Track
– OpenClaw-Skill
– From Trainee to Trainer
– Compositional Skill Routing
– Can LLM Agents Infer World Models? Read on for more: -
Claude-Sonnet-5 replaces Fable 5, busy week with GPT-5.6 and Sonnet 5
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So, we will have Claude-Sonnet-5 instead of Fable 5 soon. Looks like a busy week: probably GPT-5.6 and Sonnet 5. But hey, keep it up!
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Gary Marcus argues math doesn’t disprove LLM novelty
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this claim around creativity is too strong, IMHO. truly novel ideas from LLMs are surely rare but i don’t think that any math proves they are impossible. note that the objective function and the outputs are not the same.
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True reason for banning AI Fable and Mythos revealed after NSA breach
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"We're becoming completely paranoid!", "Friday it was panic, an AI entered almost all classified systems of the NSA in a few hours"
Twist in the case of the ban of Anthropic's AI Fable 5 and Mythos: the real reason behind it is finally revealed. -
Build your own Claude Code with Deep Agents
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Great community article showing how to build a Claude Code-like agent using Deep Agents. Particularly relevant given how powerful GLM-5.2 appears to be! https://pub.towardsai.net/build-your-own-claude-code-using-langchin-a-deepdive-into-langchains-deep-agents-9ef98d98a69a …