
Thorsten Ball
@thorstenball
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Author of https://t.co/arW0hnVET0 and https://t.co/RN9xXOzhON. @sourcegraph working on @ampcode. Ex-@zeddotdev. Programming where the rubber hits the road.
Großwallstdt, Bavaria, Germany
Joined November 2011
My second book "Writing A Compiler In Go" is now available!. You can buy it here as a single eBook or in a bundle with its predecessor."Writing An Interpreter In Go":. #golang.
compilerbook.com
This is the sequel to Writing An Interpreter In Go and this time we're writing a compiler and a virtual machine for Monkey. Same codebase, same approach, new goals. Code front and center, step by...
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Model alloys, man. (I guess: release #4 today).
Raising An Agent - Episode 8. In this episode, @beyang sits down with @camden_cheek to discuss how the Amp team evaluates new models: why tool calling is the key differentiator, how open models like K2 and Qwen stack up, what GPT-5 changes, and how qualitative “vibe checks” often
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Surprise #3: I feel dumb *and* very cool at the same time when I pull over the microphone before talking to the agent. "Alright, listen, here's what I want you to do. ".
Trying speech-to-text heavily this week and biggest surprise so far: surprisingly little amount of text produced after talking for 3-4 minutes.
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Amp Tab was so good today. Here's what I shared in our internal channel this morning. Little moments of delight, it's neat.
Amp Tab now uses a new, custom model to provide better completions. We rebuilt our training dataset with synthetic examples and used DPO post-training on top of SFT. The model learns from its previous bad outputs as negative examples alongside synthetic ground truth as positive
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Surprise #2: when I now talk to the agent using speech-to-text I somehow end up saying "Thank you." at the end of my prompt, as if I was leaving a voice mail. Very dumb.
Trying speech-to-text heavily this week and biggest surprise so far: surprisingly little amount of text produced after talking for 3-4 minutes.
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Let's do it live :).
Get ready for Next Token!. New live show every Wednesday hosted by me and @thorstenball. Launching Sep 3rd. Guests already confirmed: .@dhh .@mckaywrigley . If you're an engineer using agents, you won't want to miss it. @theo and @ThePrimeagen - want to hop on the show
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