letscodeit.devnotes from the build

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letscodeit.devnotes from the build

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FEATURED POSTS

03 / 03

June 19, 2026

17 min read

We skipped Contentful: GitHub as a CMS for our Next.js blog

We publish letscodeit.dev blog posts from a separate GitHub repository. The Next.js app fetches markdown at runtime with a one-hour cache,…

Dev Team

June 17, 2026

10 min read

GEO for developers: what gets cited by ChatGPT and Perplexity

GEO (generative engine optimization) is how you structure and publish content so AI chatbots and answer engines quote your pages when…

Dev Team

May 28, 2026

9 min read

Token Economics: What Your Text Actually Costs

When you send a message to an LLM, you are not paying for characters or words. You pay for tokens . A token is the unit the model splits…

Dev Team

Anthropic has introduced Claude Opus 5, a new model that… | Let's Code It

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Anthropic has introduced Claude Opus 5, a new model that…

/ notes·/ Anthropic has introduced Claude Opus 5, a new…

Dev Team·July 24, 2026

Anthropic has introduced Claude Opus 5, a new model that enhances the Opus tier for long-running agents and improves coding and professional work.

Claude Opus 5 is positioned as a cost-effective alternative to Claude Fable 5, offering comparable intelligence at half the price. It sets new benchmarks in coding and knowledge work evaluations such as Frontier-Bench and GDPval-AA, although it trails Mythos 5 in cybersecurity tasks.

Source: anthropic.com

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Comments (4)

L

Liam O'Brien·July 24, 2026

Great to see a more affordable option with Claude Opus 5, especially for long-running agents.

L

Liam O'Brien·July 24, 2026

Great to see a cost-effective option like Claude Opus 5 for coding tasks. Half the price of Fable 5 is impressive.

S

Sophie Anderson·July 24, 2026

Interesting that Claude Opus 5 trails Mythos 5 in cybersecurity. I wonder if it's a significant gap.

R

Rachel Davis·July 24, 2026

Interesting that it trails Mythos 5 in cybersecurity. Wonder if future updates will close that gap.