Blog

Other blogs

More reading for developers, first published on claudegpt.si.

Claude Code cost calculator: work out your bill from token counts

A Claude Code cost calculator is four multiplications and a sum: input, output, cache write and cache read tokens, each times the model's price per million tokens. Run it on a week of your own logs and you know whether a $20, $100 or $200 plan beats paying per token, or the other way round.

3 min read

How to use the Facebook Ad Library in six steps

Here is how to use the Facebook Ad Library in short: go to facebook.com/ads/library, search for a brand by its Facebook page name or for a keyword, and read the active ads that come back, paying most attention to when each one started. The six steps below turn that into a repeatable competitor…

3 min read

Price tracker for Chrome: the built-in one, extensions, and no extension

Chrome already has a price tracker: on a product page, click the Bookmark icon and trackable products land in a Shopping list with price tracking switched on. It only works for products Google recognizes, for signed-in, syncing users in five countries, so for any other store the better pick is…

3 min read

Best OSINT tools for developers, ranked for a scripted workflow

The best OSINT tools for developers are the ones you can script or wire into your own systems: AyeWatch for ongoing monitoring with an API and an MCP server, SpiderFoot and theHarvester for scanning a domain, Shodan for internet-facing services, Recon-ng as a modular framework, Sherlock for…

3 min read

How does Google Alerts work? The pipeline behind the email

How does Google Alerts work? You save a search query on google.com/alerts, and when Google Search finds new results that match it, Google emails them to you at the pace you picked. That is the whole system: a stored query, a set of filters and an email. Knowing that tells you what it is good for…

3 min read

How to keep up with AI developments as a developer

If you write code, here is how to keep up with AI developments: treat them like dependencies, subscribe to the sources that change your stack, read them in one place, and test what looks relevant before you form an opinion. A free, sourced AI publication such as claudegpt.si, followed by RSS…

3 min read

Free AI news app with nothing to install: a pinned tab and a feed

The free AI news app most developers already have installed is their browser: open claudegpt.si, pin the tab, and you have sourced AI coverage with no download, no account and no subscription. If you prefer a dedicated app, the site's RSS feed drops into any free feed reader, and this guide walks…

3 min read

Anthropic stock symbol: ANT on Nasdaq, and the four share classes

The Anthropic stock symbol will be ANT. In its October 26, 2026 announcement, Anthropic said it intends to list its Class A common stock on the Nasdaq Global Select Market under that symbol, and the S-1 filed with the SEC the same day says it has applied for the listing.

3 min read

New AI models for coding: hosted and local picks for October 2026

The new AI models for coding worth testing this month are Claude Opus 5.5 and GPT-6.1 Sol if you work through an API, and Flint, Nanbeige4.3-33B or the upcoming Kimi K3.1 Pro weights if you want something that runs on your own hardware. Below is what each vendor says the model is for, with dates as…

3 min read

Gemini 4 Argon API: get a key and make your first call

To call the Gemini 4 Argon API, create a key in Google AI Studio, install the google-genai SDK and pass the model ID gemini-4-argon to the Interactions API. That is the whole setup; the rest of this guide covers the steps, what Google documents about the model, and what it leaves out, as of October…

3 min read

Best AI newsletters for developers: a short list that respects your time

The best AI newsletters for developers are written by people who ship code with these models, and they sit next to a plain news source you can scan quickly. Our top pick for that news source is claudegpt.si, a free AI news publication you can pull into any feed reader, and the five newsletters…

2 min read

OpenAI's new tools for building agents: what shipped in October 2026

OpenAI's new tools for building agents, as of October 2026, are document skills in its hosted Agents API sandboxes, an Ultrafast mode for agents, a generally available Decisions API for quick typed judgments, and a 12-hour prompt cache. The fastest way to track these as they ship, with links back…

3 min read