Alex Ker 🔭 ✓

@thealexker · nyc · joined 02 May 2018

code+words @baseten | investing in frontiers & sharing my curiosities | prev @bloombergbeta @stanfordhai @neurable.

13 327Followers

1 330Following

4 732Posts total

84.2KViews on collected posts

Latest posts

Alex Ker 🔭 ✓@thealexker3 Sep

excited to share we're building a research lab, an initiative to keep pushing open source ecosystem forward! 1.8K views · 36 likes · 0 reposts · 1 replies Open on X →

Alex Ker 🔭 ✓@thealexker2 Sep

recent notes/learnings on harnesses (small n, directionally correct, experimental results soon): > running harness experiments is brutally expensive! e.g. @guanlan's experiment used 2B tokens but only covered 30 tasks (21 terminal-bench tasks and 9 deepswe tasks) > the best 2.6K views · 35 likes · 4 reposts · 3 replies Open on X →

Alex Ker 🔭 ✓@thealexker2 Sep

so good. absolutely worthwhile read to understand the first, second, and third-order effects from the progress in AI. feedback loops will be everywhere 29.3K views · 97 likes · 3 reposts · 0 replies Open on X →

Alex Ker 🔭 ✓@thealexker2 Sep

most people forget there are two vectors to optimize for to reduce model cost: 1) reducing the input/output costs, increasing cache hit rates, batching etc 2) packing more intelligence per token (fewer tokens for same task) inference cost = price per token × tokens per task 2.5K views · 35 likes · 6 reposts · 2 replies Open on X →

Alex Ker 🔭 ✓@thealexker7 Aug

https://t.co/yduFAJzanv 47.9K views · 194 likes · 27 reposts · 16 replies Open on X →

Against accounts of the same size

5 posts from the last 90 days, next to the 10K–100K follower range. shown to more people than peers of the same size.

Median views2 606this account1 041median for 10K–100K

Reach, %19.55%this account3.61%median for 10K–100K

Engagement, %1.61%this account1.70%median for 10K–100K

Metric	This account	Median for 10K–100K	Ratio
Median views per post	2 606	1 041	2.50×
Reach (views ÷ followers)	19.55%	3.61%	5.42×
Engagement rate	1.61%	1.70%	0.95×

Others in this range → Compare with another account → How these benchmarks are built →

Growth & engagement

How the posts we collected actually performed: views and reaction rate post by post, what the audience did with them, and where the follower count goes.

Views per post

47.9K7 Aug

2.5K2 Sep

29.3K

2.6K

1.8K3 Sep

Last 5 collected posts, oldest on the left. The scale is logarithmic: one post can outrun the rest a hundred times over.

Engagement rate per post

0.49%7 Aug

1.69%2 Sep

0.34%

1.61%

2.09%3 Sep

Reactions — likes, reposts, replies and quotes — divided by views. Median for 10K–100K accounts is 1.70%.

What the audience does

Likes37.2%397 in total

Reposts3.7%40 in total

Replies2.1%22 in total

Bookmarks57.0%609 in total

Share of every reaction we collected for this account. Replies mean argument, reposts mean endorsement, bookmarks mean the post was worth keeping.

The follower curve appears once this account has two daily snapshots — we take one a day, and this one is on its first.

Latest posts

Against accounts of the same size

Growth & engagement

Views per post

Engagement rate per post

What the audience does

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