To win the AI race, attract top talent by trumpeting that your mission is safe superintelligence and then quietly forget about the safe part.
BIG TECH
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OpenAI Model Early Access: Honest Review and Performance Analysis
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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!
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OpenAI doubles GPT-5 rate limits for ChatGPT Plus users
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GPT-5 rollout updates: *We are going to double GPT-5 rate limits for ChatGPT Plus users as we finish rollout. *We will let Plus users choose to continue to use 4o. We will watch usage as we think about how long to offer legacy models for. *GPT-5 will seem smarter starting
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OCR Conjecture: Evidence OpenAI Scanned Books for Training
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the OCR conjecture: some examples include artifacts such as OCRV ROOT, which indicate the training data may have been reading between the lines: OpenAI is scanning books (for some reason the model loves mentioning how many deaf people live in Malaysia)
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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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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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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 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.
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GPT-5 Key Characteristics and Pricing Analysis
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Sent out the latest edition of my newsletter, aka everything I've written on my blog in the past 7 days copied-and-pasted into an email https://
simonw.substack.com/p/gpt-5-key-ch
aracteristics-pricing
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