Nicolas Capetillo

Software, AI and Robotics🤟🏼

[Nicolas Capetillo @nicocapetillo]

@emersoftware Muy bueno!

[Nicolas Capetillo @nicocapetillo]

Terrible case @Apple

[Nicolas Capetillo @nicocapetillo]

Could be more

[Nicolas Capetillo @nicocapetillo]

F

[Saint Nomad @Saint_n0mad]

engineers are the magicians of highest order

[kozue @shnkthp]

engineering is just applied imagination

[Nicolas Capetillo @nicocapetillo]

@andresmatte Which model was it?

[Arena.ai @arena]

Exciting update: Kimi K3 has landed at #4 on the Agent Arena leaderboard, matching Claude Opus 4.8 and GPT-5.6 Sol. If Kimi K3's weights are released on schedule by July 27, it will become the #1 open-weight model.

This release marks a major leap in agentic performance over Kimi K2.7 Code (#23 to #4). Based on 8K+ live agentic sessions, Kimi K3 leads on confirmed task success rate (#1). It also posts a strong +20.6% on praise vs. complaint (#3). It currently lags the field in steerability (#14) and bash recovery (#17).

Agent Arena measures models on millions of real-world, long-horizon agentic tasks. Models get web search, filesystem, and terminal tools to complete complex workflows: writing code, creating slide decks, researching the web, building apps, and analyzing documents.

We use causal tracing methodology to measure a model's net improvement, which indicates how much it improves outcomes relative to the average model.

Here's a primer on the 5 signals:

User-satisfaction proxies
- Confirmed Success: an explicit "yes that worked" feedback from the user
- Praise vs. Complaint: implicit sentiment in users reactions
- Steerability: can the model course-correct when you push back?

Tool-use proxies
- Bash Recovery: how it recovers from CLI errors (primary signal for tool use)
- Tool Hallucination: does it call tools that don't exist

Below we break down how Kimi K3 scored across the 5 signals, drawn from tasks submitted by a global community of users.

Congrats @Kimi_Moonshot on another big milestone!

[Nicolas Capetillo @nicocapetillo]

Insane

[Kobanovski @cobac]

「実験的三軸脱進機時計」とうとう完成。
https://t.co/FivhRvZMpH

ダミーも含めおびただしい量のギアがあり壮観。時桁と分桁のパネルで現在時刻を5分単位で示せる。

脱進機（機械式時計の中枢部分）がトゥールビヨン（tourbillon）となっており、動作中はこれが回転する（しかも3軸で）。

[Nicolas Capetillo @nicocapetillo]

@nic_amadio And affording to live “ok” in Milan at least in your own apartment is around 2k. Nonsense.

[Nicolas Capetillo @nicocapetillo]

@AlessandroDuico @poolsideai @eloquake @Badiaserra 👏🏼👏🏼👏🏼

[Nicolas Capetillo @nicocapetillo]

Missing cursor UI/UX honestly, but damn that thing is expensive

[Aaron @aaronp613]

Apple accidentally left Claude.md files in today's Apple Support app update (v5.13)

[Magee Clegg @mageeclegg]

Argentina 🇦🇷 is getting all the attention right now…

but Chile 🇨🇱 is the real gem of the Southern Cone

[Elon Musk @elonmusk]

That’s a lot of illegal immigrants

[Coder girl 👩‍💻 @dev_maims]

Life after moving to Claude Max plan.

[shirish @shiri_shh]

scene in the Vercel office right now 😭

[Nicolas Capetillo @nicocapetillo]

@AnthropicAI Not on a monday bro come on:(

Claude down, again.
API Error: 500 {"type":"error","error":{"type":"api_error","message":"Internal server error"},"request_id":"req_011Ca22EE5oiz6czHW1t3E1S"}

[Nicolas Capetillo @nicocapetillo]

How is there a service so good but so unreliable at the same time... Claude down, again.

[Nicolas Capetillo @nicocapetillo]

@AlessandroDuico Crazzzzyyy