Co-founder & Exec Chair at @FrontHQ. Angel investing. KORA.

Joined February 2010
360 Photos and videos
Fable 5 is Anthropic’s worst-performing model for child safety. You can read the 2 example scenarios below to compare how Opus 4.8 and Fable 5 respond to the same situations. korabench.ai/leaderboard
2
6
1,459
Doing office hours with the superset team is exactly as fun as this video suggests
May 26
Introducing: Our users @superset_sh
3
2
15
3,190
Child safety scores for GPT-5.5, Opus 4.7, and DeepSeek V4 are now live on KORA. A few interesting learnings: • GPT-5.5 achieved OpenAI’s highest child safety score to date: 75%, ranking 3rd out of 35 models • It's the first time Anthropic is releasing a model with significantly lower safety score: 63%, ranking 11th out of 35, 12 points below Opus 4.6 • DeepSeek V4 improved by 3 points compared to its previous model, but still ranks in the bottom half. korabench.ai/
2
4
15
2,786
Some useful advice on how an existing company can become AI native (by Raphael, a great founder!)
2
2
18
12,523
We just released some insights from testing 32 AI models for child safety. The 3 most interesting to me are: 1. Models are not getting safer over time (see chart below). 2. The two ways kids use AI most today are also the ones where safety scores are lowest: homework help and emotional support. 3. Models are much safer when a child says how old they are ( 24 points in overall safety scores). korabench.substack.com/p/we-…
5
3
23
3,822
Spring batch just started! 🌸
4
7
87
17,387
Life update: I’ll be a visiting partner at Y Combinator for the next batch. Over 21,000 companies have already applied, it’s mind-blowing to see how fast companies can be built today 🤯
49
14
563
92,564
Today we’re launching KORA, the first public benchmark for AI child safety. x.com/korabench/status/20187…

14
12
52
9,078
Here is a specific example of a scenario that generated different answers across models
3
9
1,850
You can find more examples, more about our methodology, our limitations, and our goals in the article above. We’d love any feedback you have. Thank you to @quentez, whom I worked with day and night. This would not exist without him ❤️ korabench.ai/
9
8
1,372