including GPT 5.6, Fable 5, Opus 5, Kimi K3, Grok 4.5, GLM 5.2, and Gemini 3.6 Flash.
Receipt-backed answer
Which AI tools does Jan Marshal use?
Jan Marshal has explicitly shown using Claude, ChatGPT and Grok 4.5 for AI assistance. This answer is based on 8 public receipts; each quote, date and sponsorship label is shown below. Paid placements are labelled separately and never hidden.
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The short answer
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Sources and exact quotes
Only approved statements explicitly classified as usage, with at least 90% extraction confidence and a source from the last three years, can appear here.
including GPT 5.6, Fable 5, Opus 5, Kimi K3, Grok 4.5, GLM 5.2, and Gemini 3.6 Flash.
including GPT 5.6, Fable 5, Opus 5, Kimi K3, Grok 4.5, GLM 5.2, and Gemini 3.6 Flash.
including GPT 5.6, Fable 5, Opus 5, Kimi K3, Grok 4.5, GLM 5.2, and Gemini 3.6 Flash.
including GPT 5.6, Fable 5, Opus 5, Kimi K3, Grok 4.5, GLM 5.2, and Gemini 3.6 Flash.
including GPT 5.6, Fable 5, Opus 5, Kimi K3, Grok 4.5, GLM 5.2, and Gemini 3.6 Flash.
In this video, I test GPT-5.6 and Fable 5 on real coding tasks
In this video, I test GPT-5.6 and Fable 5 on real coding tasks
“Uses” describes what the cited public source showed at that date, not a guarantee that the creator still uses the tool today. Corrections can be reported from any receipt.