OpenAI’s chief scientist, Jakub Pachocki, wrote in a slack message that GPT-5.6 will be a "meaningful improvement" over GPT-5.5. GPT-5.5 is fantastic and my daily companion in Codex. A significant leap forward would be welcome. But the truth is: OpenAI needs its own
LLMS
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Stop prompting coding agents, design loops instead – loop engineering
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Stop prompting your coding agents.
The people building Claude Code and Codex don't prompt anymore — they design loops. New video: what loop engineering actually is, the 5 building blocks, and the 2 traps that burn your token budget. https://
youtu.be/NjXIIH9vcv0 -
Favorable exchange rate between Claude and OpenAI
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Claude $200 = $8,000
OpenAI $200 = $14,000 I like this exchange rate (as long as it lasts) -
Claude Fable 5 vs Opus 4.8: one-shot test results
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BREAKING Claude Fable 5 went public yesterday, the first Mythos model, the tier above Opus 4.8. So I tested it. Same 3 prompts, Fable 5 vs Opus 4.8, one shot each, no follow-ups. Watch what came back:
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Guide on agentic engineering patterns
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I wrote a whole guide! https://simonwillison.net/guides/agentic-engineering-patterns/ …
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Dfintelligence: Fable 5 impressive but expensive and overhyped
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I answered the questions of @lopinion_fr about Fable 5. In summary and in continuity of my tweets: "Yes, on very complex tasks, it is impressive, but it is also very expensive, overhyped and is above all a matter of marketing. The big bad wolf announced by Anthropic is"
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Fable will be considered a dumb model soon
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It’s hard to imagine, but Fable will be considered a “dumb” model in just a few months.
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LLM Gateway integrates observability and application into a single tool
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Obtaining both observability and application once meant assembling: A separate gateway, A guardrails platform, An observability stack… then correlating signals between the three when a problem occurred. LLM Gateway integrates both into
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LangSmith Fleet template: Software Engineer coding agent from Slack, Linear, GitHub
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LangSmith Fleet template spotlight: Software Engineer Ships code from Slack, Linear, and GitHub in a sandbox A coding agent that takes issues from @Linear
, writes and verifies the code, and opens a PR. Triggered directly from Slack. -
OpenAI unveils Lockdown Mode against prompt injection attacks
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OpenAI unveils Lockdown Mode to protect sensitive #Data from prompt injection attacks
by Anthony Ha @TechCrunch Learn more: https://
bit.ly/4e2EVQw #GenerativeAI #ArtificialIntelligence #MI #AI #LLM