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How AI function calling works UNDER THE HOOD? [video]

https://www.youtube.com/watch?v=Qor2VZoBib0
2•kehiy•2h ago

Comments

kehiy•2h ago
We saw LLMs are able to call tools for a long time and we even saw protocols like MCP out there to make it more standard.

It's simple to understand how it work at the surface level, but for me the big question was how a large LANGUAGE mode calls a tool? It was obvious that they had to SAY it and ask to the client somehow to do it for them, but they are very dynamic? how do we force them to always respond in a known format? So, based on this video I just understand they are fine-tuning models to learn how to call a tool correctly in standard form.

You may knew this, but it was always a question for me and after a long time I had enough time to do a search about it.

High-strength, low-temperature steel for first fusion reactor in action

https://www.mdpi.com/2076-3417/15/9/5201
1•LAsteNERD•30s ago•0 comments

The Exodus from the Washington Post

https://www.cjr.org/the_media_today/exodus-washington-post-wapo-storied-paper-dying-jeff-bezos-donald-trump.php
2•xrayarx•2m ago•0 comments

Ask HN: What change enabled you to consistently finish your side projects?

1•pillefitz•2m ago•0 comments

Qwen Image

https://huggingface.co/Qwen/Qwen-Image
1•error404x•3m ago•0 comments

AI agent friendly web browser which render HTML and CSS in Markdown

https://pypi.org/project/julia-browser/
1•mrxhacker99•3m ago•1 comments

Ocean-2 (wave power generation prototype) [video]

https://www.youtube.com/watch?v=Q7Pmgq2JKbI
1•imglorp•4m ago•0 comments

Hello Stranger

https://www.willdennis.com/blog/Hello-Stranger
1•williamldennis•5m ago•0 comments

Mobile app analytics library led to the PII exposure

https://www.cossacklabs.com/blog/how-mobile-app-analytics-library-led-to-the-pii-exposure/
1•punchvine•5m ago•1 comments

India's IT sector is shedding jobs

https://www.cnbc.com/2025/08/04/indias-it-layoffs-spark-fears-ai-is-hurting-jobs-in-critical-sector.html
2•belter•6m ago•0 comments

Ghost (CMS and publishing platform) version 6.0 adds support for the Fediverse

3•rglullis•6m ago•0 comments

Qwen-Image: Crafting with Native Text Rendering

https://qwenlm.github.io/blog/qwen-image/
1•meetpateltech•7m ago•0 comments

Fine-tuned small LLMs can beat large ones with programmatic data curation

https://www.tensorzero.com/blog/fine-tuned-small-llms-can-beat-large-ones-at-5-30x-lower-cost-with-programmatic-data-curation/
1•GabrielBianconi•8m ago•0 comments

The Ghost in the Graph, Pt. 2, or Why Winning Big Is the Fastest Way to Lose

https://vasily.cc/blog/the-ghost-in-the-graph-pt2/
1•staph•9m ago•0 comments

Show HN: Grant Writing AI for Nonprofits

https://www.grantboost.io/
2•EzenwaO•9m ago•0 comments

Split Flap

https://fx.hot.page/split-flap
1•eustoria•10m ago•1 comments

The Gulf's trillion-dollar AI dream faces a water crisis

https://restofworld.org/2025/gulf-ai-water-crisis/
3•colinprince•11m ago•0 comments

Moravec's Paradox: Towards an Auditory Turing Test

https://arxiv.org/abs/2507.23091
1•belter•12m ago•0 comments

Earth, Mars, Venus, and a lost planet once 'waltzed' in perfect harmony

https://www.livescience.com/space/planets/earth-mars-venus-and-a-long-lost-planet-may-have-once-waltzed-in-perfect-harmony-around-the-sun
1•Brajeshwar•12m ago•0 comments

Efforts to Ground Physics in Math Are Opening the Secrets of Time

https://www.wired.com/story/efforts-to-ground-physics-in-math-are-opening-the-secrets-of-time/
1•Brajeshwar•13m ago•0 comments

Mysterious boost to Earth's spin makes Aug 5 one of the shortest days on record

https://www.space.com/astronomy/earth/mysterious-boost-to-earths-spin-will-make-aug-5-one-of-the-shortest-days-on-record
1•Brajeshwar•13m ago•0 comments

Show HN: LLMs Play Monopoly Deal

https://dealbench.org/
1•advaith08•14m ago•0 comments

Anthropic beats OpenAI as the top LLM provider for business – and it's not close

https://www.zdnet.com/article/anthropic-beats-openai-as-the-top-llm-provider-for-business-and-its-not-even-close/
2•CrankyBear•14m ago•0 comments

Luzer, a coverage-guided Lua fuzzing engine

https://bronevichok.ru/posts/introducing-luzer.html
1•todsacerdoti•14m ago•0 comments

Why Universal Basic Income Is the Answer to Poverty, Insecurity, and Inequality

https://www.scottsantens.com/what-the-media-isnt-telling-you-why-universal-basic-income-ubi-is-the-answer-to-poverty-insecurity-and-inequality/
3•2noame•15m ago•0 comments

Third Man Factor

https://en.wikipedia.org/wiki/Third_man_factor
2•palad1n•16m ago•0 comments

War Never Changes

https://siamesepilgrim.bearblog.dev/war-never-changes/
3•speckx•17m ago•0 comments

Show HN: Help me evolve a new type of AI, so it can learn English

1•shallowNuralNet•20m ago•0 comments

Test

https://news.ycombinator.com/submit
1•vyzen_akave•20m ago•3 comments

Elite New York High School Admits 8 Black Students in a Class of 781

https://www.nytimes.com/2025/07/31/nyregion/specialized-high-schools-black-students-stuyvesant.html
6•antlas•21m ago•3 comments

Crucial mutant corn stocks threatened under 2026 USDA budget

https://aces.illinois.edu/news/crucial-mutant-corn-stocks-threatened-under-2026-usda-budget
2•PaulHoule•21m ago•0 comments