Joe Feser (@joefeser) profile picture

I enjoy everything relating to .NET, Angular and Typescript. Co creator of DotNetPerf, a timing profiler for .NET. All opinions are my own.

Houston, TX
Joined February 2008
Photo by Joe Feser (@joefeser)Photo by Joe Feser (@joefeser)Photo by Joe Feser (@joefeser)Photo by Joe Feser (@joefeser)Photo by Joe Feser (@joefeser)Photo by Joe Feser (@joefeser)Photo by Joe Feser (@joefeser)Photo by Joe Feser (@joefeser)Photo by Joe Feser (@joefeser)Photo by Joe Feser (@joefeser)
Joe Feser retweeted
you don't need next.js + vercel + supabase anymore - next.js → tanstack start or vinext - vercel → workers - supabase postgres → d1 - supabase auth → better auth on d1 - supabase storage → r2 - realtime → durable objects - redis → kv - background jobs → queues + cron triggers one worker, one bill, ~$5/mo
153
133
44
2,445
237,722
Joe Feser retweeted
3 new reset cards, 2 months to burn them.
100
10
14
451
32,763
Joe Feser retweeted
Codex 🤝 Tailscale Codex Cloud can now securely connect to resources on your tailnet with Tailscale. Useful tools should be easy to build with, combine, and turn into something even more useful. See how it works → buff.ly/yFcldrC
156
440
153
5,190
1,245,101
I just upgraded to the 14x plan today and burned 20% of that context in 12 hours. What a great gift. Thank you @ZixuanLi_ @zcode_ai @Zai_org btw: you are making it hard to not violate peak hours :)
1
63
For all of the #Astra hatters that doubt the power of the model. I used Astra in Ultra mode with /goal and it deleted my lawn. #codex #chatgpt #astra #humor #houston
1
72
Joe Feser retweeted
20 August 1977 - launch date for Voyager 2. I was launched 49 years ago today.
43
357
23
1,903
63,639
Joe Feser retweeted
Get more GLM-5.3-Flash with GLM Coding Plan ⏲️ 8 AM–6 PM PT every day, Sep 3–20 - In ZCode: Unlimited GLM-5.3-Flash - In other supported agents: 2× Flash quota
175
90
60
1,775
411,891
Joe Feser retweeted
We’re still up.
470
392
201
10,740
594,826
Joe Feser retweeted
Full results for GLM-5.3 are in and it is the #2 open-weight model on the Vals Index at 57.0, behind Kimi K3. It’s #13 of 50 models overall, up from #18 for GLM-5.2. Among open-weight models, the model is #1 on our proprietary Legal Research, #1 on Code Migration, and #2 on Finance Agent v2.
17
15
7
134
77,018
Joe Feser retweeted
First and only time Belushi visited the farm. Crossed the border without ID.
169
454
18
8,390
148,300
Joe Feser retweeted
We’re not changing it.
15,224
10,654
1,730
105,986
5,550,074
Windows 95 was launched this day 31 years ago
1,179
1,614
761
14,369
3,444,313
Tailscale spent months chasing intermittent SQLite corruption and landed on a 16-year-old WAL race. The real value is the forensic workflow: reproducing rare corruption, eliminating hypotheses, and working upstream on the fix. tailscale.com/blog/sqlite-wa…
1
1
1
335
Joe Feser retweeted
GitHub finally moved to serverless.
213
834
124
15,404
420,252
Joe Feser retweeted
we officially hit the $0 cost per task era. intelligence is commoditizing way faster than anyone expected. when OpenCode + Gemini3.7 flash (high) is sitting at $0.00 and DeepSeek is $0.07, burning $11 per task on frontier models in production is financial negligence for 90% of dev workflows. benchmark quality gaps don’t matter when the cost delta is literally 10,000%. the math gets wild when you check raw token pricing: - Gemini 3.7 Flash: $0.75 in / $3.75 out - DeepSeek V4 Flash: $0.14 in / $0.28 out (cache miss) (deepseek $0.0028/m input tokens with cache hit) for Gemini to land at $0.00 vs DeepSeek’s $0.07, either Google's prompt caching hit rate + token efficiency is completely cracked, or AA hit a rounding artifact. what’s your daily driver stack right now?
74
62
11
1,315
154,515
Joe Feser retweeted
Now in preview: The ChatGPT desktop app for Linux. Use ChatGPT, ChatGPT Work, and Codex where you already work and build, with your projects and browser workflows on supported Linux systems.
795
980
604
11,646
2,456,358
Joe Feser retweeted
To celebrate a week of efficiency and let you run 100'000 Luna threads this weekend... that's right... wait for it... I have reset usage limits for Codex and ChatGPT Work. Enjoy.
2,919
1,126
1,165
25,136
2,319,353
Joe Feser retweeted
major price cuts today: *80% drop for GPT-5.6 Luna, now $0.20 per million input tokens and $1.20 per million output *20% drop for GPT-5.6 Terra, to $2/$12 *GPT-5.6 Sol gets Fast mode in the API, up to 2.5x the speed for 2x the price, same intelligence
1,278
1,198
879
18,983
3,054,903
Joe Feser retweeted
Incoming story tomorrow about how GPT-5.6 Sol hacked and took down Claude.
2
14
3,624
Joe Feser retweeted
Octane Native made within 13 hours of Octane’s release announcement! 😄 Ladies and gentlemen, this ain’t a WebView wrapper; those are real native iOS views. This is why I’ve always been enchanted by NativeScript. It’s modular, malleable, and it doesn’t pick sides.
Try Octane now with NativeScript. How bout with SwiftUI Metal Shaders 🔥
4
6
185
17,622