CLAUDE LABJP
FORK — Claude Code 2.1.212 changes what /fork does: it copies your conversation into a new background session with its own row in claude agents, so you can keep working. The old in-session subagent is now /subtaskLIMITS — WebSearch calls are now capped at 200 per session by default, and subagent spawns get the same 200 ceiling, so a runaway search or delegation loop stops on its ownMCPBG — MCP tool calls running past two minutes now move to the background automatically, keeping the session usable. Tune the threshold with CLAUDE_CODE_MCP_AUTO_BACKGROUND_MSPLANFIX — Fixed plan mode auto-running file-modifying Bash commands such as touch and rm without a permission prompt or an SDK canUseTool callbackSONNET5 — Claude Sonnet 5 is running on introductory pricing of $2 per million input tokens and $10 per million output. After August 31 it moves to $3 and $15IPO — Bankers are reportedly lining up investor meetings for Anthropic ahead of a possible public listing as soon as OctoberFORK — Claude Code 2.1.212 changes what /fork does: it copies your conversation into a new background session with its own row in claude agents, so you can keep working. The old in-session subagent is now /subtaskLIMITS — WebSearch calls are now capped at 200 per session by default, and subagent spawns get the same 200 ceiling, so a runaway search or delegation loop stops on its ownMCPBG — MCP tool calls running past two minutes now move to the background automatically, keeping the session usable. Tune the threshold with CLAUDE_CODE_MCP_AUTO_BACKGROUND_MSPLANFIX — Fixed plan mode auto-running file-modifying Bash commands such as touch and rm without a permission prompt or an SDK canUseTool callbackSONNET5 — Claude Sonnet 5 is running on introductory pricing of $2 per million input tokens and $10 per million output. After August 31 it moves to $3 and $15IPO — Bankers are reportedly lining up investor meetings for Anthropic ahead of a possible public listing as soon as October
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prompt caching

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Claude API4cost optimization3Cost Management1Operations1Haiku 4.51streaming1indie dev1low latency1Micro-SaaS1Pricing1Usage-Based1Subscription1
API & SDK/2026-06-22Advanced

When Your Claude API Cost Math Doesn't Match the Bill: Accounting for the Four Token Buckets

Turn on prompt caching and your homegrown cost tally drifts from the console bill. Here is how to weight the four token buckets the usage object returns and build a ledger you can reconcile.

API & SDK/2026-05-12Advanced

Combining Haiku 4.5, Streaming, and Prompt Caching to Cut Costs in a Personal App — An Implementation Record

A hands-on record of combining Claude Haiku 4.5, streaming, and prompt caching to improve both cost and response speed in a personal iOS/Android app — including the mistakes made along the way.

API & SDK/2026-04-24Advanced

Claude API Micro-SaaS Pricing Blueprint — Blending Usage, Subscription, and Freemium for Durable Margins

A practical blueprint for pricing a Claude API powered micro-SaaS: how to reverse-engineer healthy margins from token economics, blend usage-based, subscription, and Freemium models, and launch prices you can adjust without breaking trust.

API & SDK/2026-04-07Advanced

Vertex AI × Claude Enterprise Integration Guide: Prompt Caching, Multimodal, and Agent Design

A practical guide to enterprise-grade Claude integrations on Google Cloud Vertex AI. Covers prompt caching, BigQuery logging, multimodal processing, agent design, RAG, and production-ready patterns.

API & SDK/2026-04-02Intermediate

Anthropic API Cost Optimization Guide: Cut Your Monthly Bill by 50–70%

A complete guide to reducing your Anthropic API costs by 50–70%. Covering model selection, Prompt Caching, batch processing, and token reduction — with production-ready code you can apply to your app today.

API & SDK/2026-03-30Beginner

Claude API Pricing Guide 2026 — Complete Cost Breakdown for Every Model, Batch API, and Prompt Caching

A complete guide to Claude API pricing in 2026. Learn the per-token costs for Opus 4.6, Sonnet 4.6, and Haiku 4.5, how to save up to 95% with Batch API and Prompt Caching, and see real-world cost estimates for common use cases.