2026-08-26
The Best AI Coding Models Right Now, By Job
Coding models run from $0.07 to $5.00 per million input tokens — a 70× spread. A shortlist by task, with verified prices and context lengths.
来自提供商交汇处的笔记
2026-08-22
The Best AI Video Models Right Now, By Job
A shortlist by task, not a ranking. Prices run from $0.002 to $0.357 per second — a 178× spread. What each tier is actually for.
2026-08-18
The Best AI Image Models Right Now, By Job
Not a ranking — a shortlist by task. The cheapest model that will do each job, from $0.003 bulk generation to precision editing. Verified prices.
2026-08-13
480p, 720p or 1080p? What AI Video Resolution Actually Costs
Resolution is the biggest lever on an AI video bill — and the cheapest provider changes depending on which tier you pick. Verified prices.
2026-08-08
AI Image Generation Pricing Compared
What one generated image actually costs, from $0.003 to $0.045 — across fal.ai, Replicate and Atlas Cloud, with the rounding trap that doubles bills.
2026-08-03
How Much Does AI Actually Cost? Three Worked Examples
What AI really costs for 10,000 product images, a chat feature at 50,000 messages a month, and 200 short videos — with the unit maths shown.
2026-07-28
Why the Same AI Model Costs Different Amounts at Different Providers
The same AI model is often listed at three different prices. Here is what actually varies — billing units, resolution tiers, run-time billing and discounts.
2026-07-21
什么是多模态 AI？（以及为什么它很少指一个模型）
多模态有两种不同含义。能读多种输入的模型，不等于能产出它们的模型，而几乎没有哪个两者兼备。
2026-07-13
什么是上下文长度？（以及真正把它填满的是什么）
上下文长度是预算，不是功能。什么会算进去、今天的真实上限在哪里，以及用完了会怎样。
2026-07-06
什么是 AI token？（以及你的账单为什么比预期高）
用大白话讲清 token：什么算一个 token，10 轮聊天为什么会按你打字量的 22 倍计费，以及输出 token 为什么最贵。