Builders
The Substitution Wave in AI
AI 替代浪潮：三大力量重塑成本结构
Recommended because
This is worth tracking because it is a concrete builder signal, not just a passing headline. The original source is useful for validating the details behind the headline. For builders and operators, "The Substitution Wave in AI" can be used as a checkpoint for shipping faster, improving internal workflows, and spotting repeatable builder patterns. I keep this thread indexed so future searches around AI builder tips, agent workflows, prompts, and implementation patterns can land on a source-linked page instead of disappearing into a fast-moving feed from www.tomtunguz.com.
What to take from this signal
Context
"The Substitution Wave in AI" is archived here as a source-linked AI signal from www.tomtunguz.com. The useful part is the connection between Substitution, Wave, 三大力量重塑, 前沿闭源模型持续涨价, 开源模型在多数场景已足够好 and shipping faster, improving internal workflows, and spotting repeatable builder patterns, which makes the item more actionable than a normal feed headline. The source context says: 三大力量重塑 AI 成本：前沿闭源模型持续涨价，开源模型在多数场景已足够好，买家开始替代。Coinbase 将提示词路由至更便宜模型，成本持平但 token 用量指数增长。Lindy 全切至 DeepSeek v4，节省数百万美元且多项核心性能提升。Harvey 在 Legal Agent Benchmark 上通过 SFT 使 Kimi 2.6 all-pass 率达 15%，超越 Opus 的 14%，同一 100 任务成本 $84 vs $954（约 11 倍价差）。Cursor 后训练 Kimi K2.5 得到 Composer 2.5，称其"性能优异且效率高达同类模型 10 倍"。闭源越来越贵，开源平价且性能接近，选择决定企业单位经济学的斜率。
Builder takeaway
For an AI builder, the main takeaway is to watch how this signal changes practical decisions around tooling, prompts, agent loops, implementation speed, and repeatable workflows. It can inform what to test next, which product surface to compare, and whether the underlying workflow is ready for real users.
Source context
www.tomtunguz.com remains the authoritative source for the original claim. This page adds a stable archive URL, a short builder interpretation, and related search language so the item can be found later when the original feed has moved on.
Search angles
- The Substitution Wave in AI Builders context
- www.tomtunguz.com AI builder tactics
- Substitution, Wave, 三大力量重塑, 前沿闭源模型持续涨价, 开源模型在多数场景已足够好 builder takeaway
- AI builder tips, agent workflows, prompts, and implementation patterns
This page keeps a source preview and a stable archive URL for search discovery. The original source remains authoritative.