What Gergely Orosz thinks about open source
Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.
Everything they publish, on ppll ↗
Gergely Orosz did not write this page.
We collected these quotes from things they published elsewhere, and every quote links to where it was said. They have no account here and have not endorsed this site. Quotes are word for word; the short line under each one is our own restatement, not their wording. Their own site. Is this you? Claim it or ask us to remove it. Or tell us what is wrong here.
3 dated positions, 2026, in their own words. Our reading of what Gergely Orosz has said — not written or endorsed by them.
The line under a date shows how recently it was said: empty within a month, full after three years.
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Their wordsCodex lets you use any model you want (not just OpenAI) and harness is open source - Claude Code doesn’t and is closed source Given this is the two leading AI labs, notable difference in approaches
- 2 days earlier
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Their wordsTo answer the question posed in the header of this report, it’s apparent that using open models is indeed the approach offering the biggest savings, followed by smart model routing. Spending controls and context optimization also bear down on costs, but they don’t come close to the first two techniques in results.
↗The Pulse: tech companies move to open AI modelsblog.pragmaticengineer.com
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Their wordsBut Anthropic’s models are becoming steeply more expensive at a time when open weight models – and also OpenAI – are getting much cheaper.
↗The Pulse: tech companies move to open AI modelsblog.pragmaticengineer.com
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