Petr Šimeček
@psimecek.bsky.social
Marie Skłodowska-Curie Fellow. Stupid tweets are my own. All the glory belongs to CEITEC and Aisle.
I have received a message from a colleague with several typos and my first idea was - cool, she wrote it herself, no chatgpt.
In a few years from now, will we make mistakes on purpose to prove we are humans? (Then teach AI to imitate it)
In a few years from now, will we make mistakes on purpose to prove we are humans? (Then teach AI to imitate it)
November 14, 2025 at 10:20 PM
I have received a message from a colleague with several typos and my first idea was - cool, she wrote it herself, no chatgpt.
In a few years from now, will we make mistakes on purpose to prove we are humans? (Then teach AI to imitate it)
In a few years from now, will we make mistakes on purpose to prove we are humans? (Then teach AI to imitate it)
Final meeting before thesis defense (with my student):
- When I asked you to add an example of some bacteria genome, which one did you pick?
= Myxococcus llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogochensis
- 🙈
- When I asked you to add an example of some bacteria genome, which one did you pick?
= Myxococcus llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogochensis
- 🙈
November 7, 2025 at 6:46 PM
Final meeting before thesis defense (with my student):
- When I asked you to add an example of some bacteria genome, which one did you pick?
= Myxococcus llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogochensis
- 🙈
- When I asked you to add an example of some bacteria genome, which one did you pick?
= Myxococcus llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogochensis
- 🙈
Netuším, jestli někdo přijde, ale pozvánka na poslední Prague R Meetup rozeslána @josefslerka.bsky.social
www.meetup.com/prague-r-mee...
www.meetup.com/prague-r-mee...
October 14, 2025 at 3:54 PM
Netuším, jestli někdo přijde, ale pozvánka na poslední Prague R Meetup rozeslána @josefslerka.bsky.social
www.meetup.com/prague-r-mee...
www.meetup.com/prague-r-mee...
One day!
October 7, 2025 at 4:05 PM
One day!
Phantom Planet - California (Lyrics)
YouTube video by bemu Rock
www.youtube.com
September 22, 2025 at 10:59 AM
Reposted by Petr Šimeček
Jestli mne nikdo nezastaví, převezmu po víkendu skupinu a poslední Prague R Meetup bude ve středu 22.10.
September 19, 2025 at 1:42 PM
Jestli mne nikdo nezastaví, převezmu po víkendu skupinu a poslední Prague R Meetup bude ve středu 22.10.
Reposted by Petr Šimeček
Sometimes you rock. Sometimes you roll.
Sometimes you take a nap and start over.
Sometimes you take a nap and start over.
September 1, 2025 at 12:00 PM
Sometimes you rock. Sometimes you roll.
Sometimes you take a nap and start over.
Sometimes you take a nap and start over.
Nevystavuj mé trollící já pokušení, @josefslerka.bsky.social, já prožil s R spoustu krásných let! Nebo kliknu na na "Yes" a... Může mít počítačový jazyk pohřeb? S Always Look on the Bright Side of Life? Že bychom pozvali Rkaře na #pycamp a #pyvo?
September 1, 2025 at 5:48 PM
Nevystavuj mé trollící já pokušení, @josefslerka.bsky.social, já prožil s R spoustu krásných let! Nebo kliknu na na "Yes" a... Může mít počítačový jazyk pohřeb? S Always Look on the Bright Side of Life? Že bychom pozvali Rkaře na #pycamp a #pyvo?
Czech contribution to AI discussion
August 6, 2025 at 1:33 PM
Czech contribution to AI discussion
Was excited about OpenAI's new open-source models until I hit "trained on a mostly English, text-only dataset" For Czech gpt-oss-20b is genuinely bad, gpt-oss-120b is passable but far from impressive. Running formal benchmarks, but casual testing already tells the story 🇨🇿
openai.com/index/introd...
openai.com/index/introd...
Introducing gpt-oss
gpt-oss-120b and gpt-oss-20b push the frontier of open-weight reasoning models
openai.com
August 6, 2025 at 1:21 PM
Was excited about OpenAI's new open-source models until I hit "trained on a mostly English, text-only dataset" For Czech gpt-oss-20b is genuinely bad, gpt-oss-120b is passable but far from impressive. Running formal benchmarks, but casual testing already tells the story 🇨🇿
openai.com/index/introd...
openai.com/index/introd...
This is actually pretty good illustration of AI-assisted coding success / failure (ignore the term "vibe coding" and be honest - we have all been on the 4th line)
Source: www.reddit.com/r/vibecoding...
Source: www.reddit.com/r/vibecoding...
June 10, 2025 at 8:11 AM
This is actually pretty good illustration of AI-assisted coding success / failure (ignore the term "vibe coding" and be honest - we have all been on the 4th line)
Source: www.reddit.com/r/vibecoding...
Source: www.reddit.com/r/vibecoding...
Ok, this is crazy. Geoguessing photos with AI:
* Gemini 2.5 Pro seems to be the best (crazy how fast it is!)
* OpenAI o4-mini-high (on a screenshot) - not bad!
* OpenAI o3 - very slow
* Grok - is guessing Lisbon, Portugal (=wrong)
* Gemini 2.5 Pro seems to be the best (crazy how fast it is!)
* OpenAI o4-mini-high (on a screenshot) - not bad!
* OpenAI o3 - very slow
* Grok - is guessing Lisbon, Portugal (=wrong)
May 2, 2025 at 6:48 PM
Ok, this is crazy. Geoguessing photos with AI:
* Gemini 2.5 Pro seems to be the best (crazy how fast it is!)
* OpenAI o4-mini-high (on a screenshot) - not bad!
* OpenAI o3 - very slow
* Grok - is guessing Lisbon, Portugal (=wrong)
* Gemini 2.5 Pro seems to be the best (crazy how fast it is!)
* OpenAI o4-mini-high (on a screenshot) - not bad!
* OpenAI o3 - very slow
* Grok - is guessing Lisbon, Portugal (=wrong)
I believe if anyone showed us GPT4.5 10 years ago, we would call it AGI.
(Standa Fort is killing it at #MLPrague2025)
(Standa Fort is killing it at #MLPrague2025)
April 30, 2025 at 7:21 AM
I believe if anyone showed us GPT4.5 10 years ago, we would call it AGI.
(Standa Fort is killing it at #MLPrague2025)
(Standa Fort is killing it at #MLPrague2025)
I had no idea that one of LLM innovations was invented for write better erotic stories. (arxiv.org/abs/2306.15595, enabling LLMs to work with longer texts)
What you learn at #mlprague2025!
What you learn at #mlprague2025!
Extending Context Window of Large Language Models via Positional Interpolation
We present Position Interpolation (PI) that extends the context window sizes of RoPE-based pretrained LLMs such as LLaMA models to up to 32768 with minimal fine-tuning (within 1000 steps), while demon...
arxiv.org
April 30, 2025 at 7:18 AM
I had no idea that one of LLM innovations was invented for write better erotic stories. (arxiv.org/abs/2306.15595, enabling LLMs to work with longer texts)
What you learn at #mlprague2025!
What you learn at #mlprague2025!
From questions to Jon McLoone's talk at ML Prague "Lies, Damn Lies and Gen AI"
Sunken WWII shipwrecks are valuable because they are source of low-background steel (en.wikipedia.org/wiki/Low-bac...). Maybe similarly, one day we will be seeking for pre-AI texts.
#MLPrague2025
Sunken WWII shipwrecks are valuable because they are source of low-background steel (en.wikipedia.org/wiki/Low-bac...). Maybe similarly, one day we will be seeking for pre-AI texts.
#MLPrague2025
Low-background steel - Wikipedia
en.wikipedia.org
April 29, 2025 at 9:36 AM
From questions to Jon McLoone's talk at ML Prague "Lies, Damn Lies and Gen AI"
Sunken WWII shipwrecks are valuable because they are source of low-background steel (en.wikipedia.org/wiki/Low-bac...). Maybe similarly, one day we will be seeking for pre-AI texts.
#MLPrague2025
Sunken WWII shipwrecks are valuable because they are source of low-background steel (en.wikipedia.org/wiki/Low-bac...). Maybe similarly, one day we will be seeking for pre-AI texts.
#MLPrague2025
When I submitted my "Bullshit AI" talk to PyConAT, I had no idea Trump would end up giving me a perfect example. It is worth trillions of dollars. Literally.
www.linkedin.com/posts/bastia...
www.linkedin.com/posts/bastia...
April 5, 2025 at 8:54 PM
When I submitted my "Bullshit AI" talk to PyConAT, I had no idea Trump would end up giving me a perfect example. It is worth trillions of dollars. Literally.
www.linkedin.com/posts/bastia...
www.linkedin.com/posts/bastia...
Ondřej Svoboda má na LinkedInu pěkné ukázky, že 4o-image zvládne i české styly
www.linkedin.com/posts/ondrej...
www.linkedin.com/posts/ondrej...
April 2, 2025 at 6:43 PM
Ondřej Svoboda má na LinkedInu pěkné ukázky, že 4o-image zvládne i české styly
www.linkedin.com/posts/ondrej...
www.linkedin.com/posts/ondrej...
New models in MiniCzechBenchmark 🇨🇿
Gemini 2.5 Pro 🥇 (as expected), Gemma 12B a very pleasant surprise 🫢 (you can run it in ollama on your 💻), only marginal improvements for new DeepSeek V3, Mistral Small, openai gpt-4o
github.com/simecek/Mini...
Gemini 2.5 Pro 🥇 (as expected), Gemma 12B a very pleasant surprise 🫢 (you can run it in ollama on your 💻), only marginal improvements for new DeepSeek V3, Mistral Small, openai gpt-4o
github.com/simecek/Mini...
April 1, 2025 at 5:46 AM
New models in MiniCzechBenchmark 🇨🇿
Gemini 2.5 Pro 🥇 (as expected), Gemma 12B a very pleasant surprise 🫢 (you can run it in ollama on your 💻), only marginal improvements for new DeepSeek V3, Mistral Small, openai gpt-4o
github.com/simecek/Mini...
Gemini 2.5 Pro 🥇 (as expected), Gemma 12B a very pleasant surprise 🫢 (you can run it in ollama on your 💻), only marginal improvements for new DeepSeek V3, Mistral Small, openai gpt-4o
github.com/simecek/Mini...
Despite popular belief it is not true that current LLMs can solve math. olympiad problems.
(I have a set of Czech middle school problems Klokánek, most LLMs are slightly above random chance, best thinking at ~90%)
arxiv.org/abs/2503.219...
(I have a set of Czech middle school problems Klokánek, most LLMs are slightly above random chance, best thinking at ~90%)
arxiv.org/abs/2503.219...
April 1, 2025 at 5:35 AM
Despite popular belief it is not true that current LLMs can solve math. olympiad problems.
(I have a set of Czech middle school problems Klokánek, most LLMs are slightly above random chance, best thinking at ~90%)
arxiv.org/abs/2503.219...
(I have a set of Czech middle school problems Klokánek, most LLMs are slightly above random chance, best thinking at ~90%)
arxiv.org/abs/2503.219...
Draw me a little map of XYZ for my future visit. Not real map, just illustration. Include top places I should visit. Please, omit typical turist traps and concentrate on cheap free hipster punk things #gpt4o
March 30, 2025 at 9:13 PM
Draw me a little map of XYZ for my future visit. Not real map, just illustration. Include top places I should visit. Please, omit typical turist traps and concentrate on cheap free hipster punk things #gpt4o
LLM image editing solved by Google (model: Gemini Flash 2.0 Image Generation Experimental). Feels like magic - it understands the image on pixel level.
Try it: huggingface.co/spaces/phils...
Or just use Google AI studio with this model
aistudio.google.com
Try it: huggingface.co/spaces/phils...
Or just use Google AI studio with this model
aistudio.google.com
Image Generation & Editing - a Hugging Face Space by philschmid
Generate and Edit images with Gemini 2.0
huggingface.co
March 17, 2025 at 3:10 PM
LLM image editing solved by Google (model: Gemini Flash 2.0 Image Generation Experimental). Feels like magic - it understands the image on pixel level.
Try it: huggingface.co/spaces/phils...
Or just use Google AI studio with this model
aistudio.google.com
Try it: huggingface.co/spaces/phils...
Or just use Google AI studio with this model
aistudio.google.com
MiniCzechBenchmark 🇨🇿 Update including QwQ-32B, Claude 3.7, Gemini 2.0, and DeepSeek-R1!
* Gemini 2.0 Flash is cost effective, fast and great
* 🇨🇳 open models to pay attention: V3, QwQ-32B, R1
* Mistral-Small-24B-Instruct-2501 = open alternative to haiku / gpt-4o-mini
github.com/simecek/Mini...
* Gemini 2.0 Flash is cost effective, fast and great
* 🇨🇳 open models to pay attention: V3, QwQ-32B, R1
* Mistral-Small-24B-Instruct-2501 = open alternative to haiku / gpt-4o-mini
github.com/simecek/Mini...
March 10, 2025 at 9:31 AM
MiniCzechBenchmark 🇨🇿 Update including QwQ-32B, Claude 3.7, Gemini 2.0, and DeepSeek-R1!
* Gemini 2.0 Flash is cost effective, fast and great
* 🇨🇳 open models to pay attention: V3, QwQ-32B, R1
* Mistral-Small-24B-Instruct-2501 = open alternative to haiku / gpt-4o-mini
github.com/simecek/Mini...
* Gemini 2.0 Flash is cost effective, fast and great
* 🇨🇳 open models to pay attention: V3, QwQ-32B, R1
* Mistral-Small-24B-Instruct-2501 = open alternative to haiku / gpt-4o-mini
github.com/simecek/Mini...
This is seriously crazy! Promting multimodal LLM to play games IN REAL TIME
x.com/haoailab/sta...
This is the repo github.com/lmgame-org/G...
A this is prompt responsible for tetris
github.com/lmgame-org/G...
GeminiFlash is fast enough to play SuperMario (on par with Sonnet 3.5)
x.com/haoailab/sta...
This is the repo github.com/lmgame-org/G...
A this is prompt responsible for tetris
github.com/lmgame-org/G...
GeminiFlash is fast enough to play SuperMario (on par with Sonnet 3.5)
Hao AI Lab on X: "We built Gaming agents to run platformers and puzzle video games in real time. Check out our demos and try our repo yourself to customize your own gaming agent! 🎮 https://t.co/OMJUHsVuIi In addition to Super Mario Bros, we also support 2048, as well as Tetris. More games are https://t.co/nvrCvKmFzX" / X
We built Gaming agents to run platformers and puzzle video games in real time. Check out our demos and try our repo yourself to customize your own gaming agent! 🎮 https://t.co/OMJUHsVuIi In addition to Super Mario Bros, we also support 2048, as well as Tetris. More games are https://t.co/nvrCvKmFzX
x.com
March 2, 2025 at 8:33 AM
This is seriously crazy! Promting multimodal LLM to play games IN REAL TIME
x.com/haoailab/sta...
This is the repo github.com/lmgame-org/G...
A this is prompt responsible for tetris
github.com/lmgame-org/G...
GeminiFlash is fast enough to play SuperMario (on par with Sonnet 3.5)
x.com/haoailab/sta...
This is the repo github.com/lmgame-org/G...
A this is prompt responsible for tetris
github.com/lmgame-org/G...
GeminiFlash is fast enough to play SuperMario (on par with Sonnet 3.5)