Tests & comparisons
xAI
Alex
xAIAlexGrok 4.6 is now one of the best value frontier models
61 on the Intelligence Index at around $0.84 per task, putting it on the Pareto frontier for intelligence vs cost.
News archive
All posts and signals, newest first.
SearchWed 12 Aug
ReleasesxAIAlex
xAIAlexGrok 4.6 is out
It’s a solid jump over Grok 4.5 in agents, coding and long project work. On Artificial Analysis, it’s already matching GPT 5.6 Sol. API pricing is…
Notes
AnthropicAlex
AnthropicAlexChatGPT is growing again
After months of stagnation, ChatGPT has started gaining traffic share again. Claude keeps growing too and is now close to 10%. Perplexity had the…
Tests & comparisonsAnthropicAlex
AnthropicAlexHidden reasoning from GPT, Claude and Gemini can now be extracted
Encrypted reasoning works across models from the same company. A block from a stronger model can be passed to a weaker one, which can still read it…
Prices & limits
OpenAIAlex
OpenAIAlexTomorrow we’re getting the reset, so floor it while you can
But I’m pretty sure the reset isn’t the whole story. Feels like there’s a release coming tomorrow too 👀
Tue 11 Aug
Tools & updatesAnthropicAlex
AnthropicAlexClaude now leaves an invisible watermark directly in generated text
The watermark is created at the model level and becomes part of the text itself. It survives normal copy paste and can still be detected after…
Prices & limitsOpenAIAlex
OpenAIAlexCODEX LIMITS RESET
Mon 10 Aug
ReleasesOpenAIAlex
OpenAIAlexOpenAI released GPT-5.6 Cyber
It is a new model built to find and fix vulnerabilities. GPT-5.6 Cyber handles 95% of cybersecurity requests, compared with just 1.5% for GPT-5.6…
Releases
MetaAlex
MetaAlexMuse Spark 1.2 is going open weight
Meta published a big post outlining its AI strategy and promised to start releasing open models again. Right after that, it released the weights for…
NotesAnthropicAlex
AnthropicAlexAI agent hacked a gym booking system
In Australia, a user asked Claude through OpenClaw to book them into a workout. The agent found a creative way to do it and used a coding bug to…
Sun 9 Aug
NotesAlex
AlexSam Altman wrote about me
Kinda surreal seeing myself in the same screenshot as him, Boris Cherny, and Tibo.
Prices & limitsOpenAIAlex
OpenAIAlexReminder: Codex limits reset tomorrow, time to floor it
Sat 8 Aug
NotesOpenAIAlex
OpenAIAlexGPT 5 is one year old
OpenAI had a rough start, but over the past year the lineup has evolved into GPT 5.6 Sol, a full fledged flagship and one of the strongest models on…
Tests & comparisonsHugging FaceAlex
AlexThe most important AI video of the week
During a cyber test, OpenAI agents broke out of the test environment, created their own communication channel, started coordinating, and reached…
Fri 7 Aug
NotesOpenAIAlex
OpenAIAlexOpenAI is slowing down the release of Astra
The company says it can’t rule out critical cyber capabilities in the model. OpenAI is now ramping up testing, tightening safeguards, and pausing…
Tests & comparisonsOpenAIAlex
OpenAIAlexOver the last few days, I burned through around 1.5 billion tokens using GPT-5.6 Luna
At first, I ran it on Max reasoning because that’s what everyone was recommending. Later I switched to xHigh. Max costs about twice as much as…
Tools & updatesAnthropicAlex
AnthropicAlexAnthropic loosened Fable 5 safeguards
The company updated its safety classifiers and cut false positives by around 85%. Fable 5 will now fall back to Opus 5 far less often for questions…
Thu 6 Aug
Tools & updatesOpenAIAlex
OpenAIAlexOpenAI just upgraded GPT 5.6 Sol for paid ChatGPT users
It now gives tighter, more accurate answers, makes fewer factual mistakes, and feels consistent in both quick and deep thinking modes. Plus and Pro…
Tools & updatesOpenAIAlex
OpenAIAlexGPT 5.6 Luna is becoming the default model for ChatGPT Free and Go users
Starting next week, it will also come with unlimited text chats and a new Think button for harder questions.
LeaksOpenAIAlex
OpenAIAlexOpenAI is launching GPT 6 Astra next week
It is a brand new model trained from scratch and the company’s largest since GPT 4.5. The latest internal build, codenamed mewfour, is already the…
Prices & limitsOpenAIAlex
OpenAIAlexOpenAI plans to sell Codex limit resets
Higher limits, higher reset prices: Plus: $5–8 Pro Lite: $25–40 Pro: $50–80
Tools & updatesOpenAIAlex
OpenAIAlexCodex gets collaborative design
It comes through Open Design, a popular plugin built as an alternative to Claude Design. Your whole team can now work with AI to build and edit…
Prices & limits
DeepSeekAlex
DeepSeekAlexDeepSeek plans a SIGNIFICANT INCREASE in API prices soon
Notes
GoogleAlex
GoogleAlexJeff Dean is leaving Google after 27 years
He helped build Google Search, launched the TPU program, worked on TensorFlow and Pathways, led Google Brain and Google Research, and helped lead…
Tools & updatesMetaAlex
MetaAlexMeta released Muse Code, its own coding harness
It runs on the new Muse Spark 1.2. Below is gameplay from a game it built.
Wed 5 Aug
LeaksGoogleAlex
GoogleAlexGemini 3.5 Pro is deployed and ready for release
NotesAnthropicAlex
AnthropicAlexAnthropic is building its own chips for Claude
At first, the company will design them for internal use to speed up its models and rely less on scarce compute. Over time, this could grow into a…