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Field notes on AI systems, GTM, and revenue architecture.

Practical breakdowns from systems I build and run. Not theory: architecture, stack choices, and operator lessons from live deployments.

New10 Nov 2026 · 6 min read

Claude Fable 5.2 vs GPT-6 Astra by effort level

Fable 5.2 leads GPT-6 Astra 65 to 57 at Max. At Medium it scores 56 for $3.80 per index task. Compare coding, PDF work and API pricing.

Read the comparison →

39 articles

Latest model comparisons

Price, independent score, and which one I would put in the loop.

All 32 →
All 32 comparisons, indexed by modelFind the model you already run and see everything I have measured it against.→

Agents and coding tools

What runs unattended, what it costs and what stops it.

9 pieces
AI Systems · 10 min read

What stops your agent? Claude, ChatGPT, Grok, Gemini and Hercules compared on the part the launch posts skip

Laptop or cloud, schedule or event, hard cap or none: what Claude, ChatGPT, Grok, Gemini and Hercules agents do when nobody is watching.

Products · 14 min read

I built a custom AI content studio in 3 hours. Then I tried to break it

A custom AI content studio for a small team: one sentence in, two voices, SEO and GEO scores, a named approver. Built in about 3 hours, then attacked.

AI Systems · 7 min read

Claude Code and Codex tie at 62 on the Coding Agent Index. Codex gets there for 40% less per task.

Fable 5.1 in Claude Code and GPT-6 Astra in Codex both score 62. Per task, Codex costs $7.47 against $12.39 and uses 3.3M tokens against 5.7M. Where each leads.

AI Marketing · 11 min read

An AI CMO without a plan is just a very fast intern

What an AI marketing stack really takes off a CMO, and what it cannot. The open source Claude Code plugin I built, and the two files it needs first.

AI Systems · 6 min read

How I use Claude Code in client GTM work

Beyond the outbound agent stack: how Claude Code runs content operations, CRM hygiene, and research inside real client engagements: what the delivery model looks like from the outside.

AI Systems · 7 min read

The AI stack I actually run in production

A complete tour of every AI tool in active use across my client work and products: what earned its place, what got cut, and what the operating logic looks like across the stack.

Playbooks

Longer pieces about systems rather than models.

21 pieces
GTM Architecture · 5 min read

Lead scoring that survives contact with sales

Most scoring models are built by marketing, ignored by sales and quietly abandoned. The fix is not a better algorithm. From the model I built at CodiLime.

Operator Playbooks · 5 min read

Selling into the Nordics when nobody there has heard of you

Translating the storefront and rerunning the same ads is the standard way into Denmark, Norway and Sweden, and it is why most entries stall.

AI Systems · 6 min read

Grok Bot vs ChatGPT Work: who can see the pipeline brief?

Compare shared bots, scheduled tasks and CRM access in Grok Bot and ChatGPT Work. Start with a pipeline brief your team can verify.

AI Systems · 7 min read

October 2026 in AI models: Gemini 4 Carbon takes first, Haiku 5.5 falls to a tenth of the price, and the index changes scale

Gemini 4 Carbon takes first but few can call it, Claude Haiku 5.5 drops to $0.10 / $0.50, GPT-6.1 Terra reaches Codex, and the index moves to v5.0.

AI Systems · 6 min read

Fable 5 scored 60 in July and 49.7 today. The model did not change. The index did.

What v4.3 measures, what changed on 7 September, the current ranking to two decimals, and why AI model scores from July cannot be compared with today's.

AI Systems · 6 min read

Add 50,000 tokens to a GPT-6 Astra prompt and the bill more than doubles. The 272K line, explained.

Above 272K input tokens, OpenAI bills the whole request at 2x input and 1.5x output. Claude keeps one rate to 1M. Worked costs for every current model.

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