I was not paid by OpenAI. I was just given access to the model in advance to try it out and share my honest thoughts. Read my full review (find it in my feed). you’ll see that I’m not 100% happy with the model. But it is really great at some things!
LLMS
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GPT-5 Launch: Cost, Speed, Context Impact for Leaders
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GPT-5 launched yesterday. I had early access and here’s what stood out to me, and how I’d be thinking about it as a business leader right now. Three words: Cost. Speed. Context. Cost → Cheaper than o3, way cheaper if you use Nano/Mini. I do not recommend slashing budgets.
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Sam Altman Announces GPT-4o Return for Plus Subscribers
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Sam Altman just announced a change in policy, GPT-4o will be coming back, at least for Plus ($20/month) users
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GPT-5 updates and rate limit changes
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TLDR; GPT-5 will get smarter, auto model switcher was broken, rate limits will be increased after the rollout. A good GPT bot
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Evaluating GPT-5 predictions accuracy and model performance
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Now that GPT-5 is out, how do you think I did? Were my predictions for the model correct?
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GPT-5 Now Available in LangSmith Playground with Cost Tracking
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🔥GPT-5 is now in LangSmith Playground w/ built-in cost tracking.
— LangChain (@LangChain) 8 août 2025
Available models:
• gpt-5
• gpt-5-mini (now default)
• gpt-5-nano
Start building with the latest models → https://t.co/fRKTx58e2V pic.twitter.com/jdFtoJvOpRGPT-5 is now in LangSmith Playground w/ built-in cost tracking.
Available models:
• gpt-5
• gpt-5-mini (now default)
• gpt-5-nano Start building with the latest models → http://
smith.langchain.com/playground -
Google Ships Genie 3, Gemini 2.5 Pro, AlphaEarth Updates
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One word: relentless. just in the past two weeks, we’ve shipped: Genie 3 – the most advanced world simulator ever Gemini 2.5 Pro Deep Think available to Ultra subs Gemini Pro free for uni students & $1B for US ed AlphaEarth – a geospatial model of the entire planet
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OpenAI API Compatibility Breaking Affects Research Projects
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The APIs remain but the locus of use for OpenAI has been the ChatGPT interface. I have a whole prompt library for previous models, now I don’t know which ones work. People had research projects, school assignments & training programs built around them. So weird to break them all.
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OpenAI retires GPT models without warning breaking user workflows
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Suddenly retiring every other model without warning was a weird move by OpenAI. … and they did it without explaining how switching models worked or even details of various GPT-5 models …and they did it when everyone has built workflows around older models, breaking them all.