Fable 5. Opus 5. Sonnet 5. Haiku 4.5. How to pick the right Claude model (every time): Step 1: Does your task require a complex answer? ☑️ No: use Haiku 4.5 or Sonnet 5. ☑️ Yes: use Opus 5 or Fable 5. Step 2: If your task is quick: → Need maximum speed & minimal tokens? ☑️ Yes: Haiku 4.5 (lightweight, token-saver). Chat without files. Turn on web search. Plan in Chat, build in Cowork. Prompt example: "I want [desired result] with [constraints]. Ask me questions using AskUserQuestion before you start." ☑️ No: Sonnet 5 (fast, everyday model). Perfect for simple tasks. Connect your apps with Connectors: Slack, Google Drive, Notion, Figma, Granola, Gamma + 50 more. Prompt example: "You are a [role]. [Task] this [input]. Keep it under [length]. Tone: [casual/formal]. No preamble - just the output." Step 3: Is this your hardest, most ambitious work? (multi-step reasoning, agents, long-thinking tasks) ☑️ No: Opus 5 (deep-work model). Use Cowork. Put Effort on High. Always. Use Skills in Projects (like /linkedin or /excel-style). Prompt example: "/[skill] topic: [topic]. DO NOT start yet. Ask me clarifying questions (use AskUserQuestion) so we can refine the approach step by step." After Cowork: → Download your file. → Or convert it into a Claude Skill. → Start a fresh session to save tokens. ☑️ Yes: Fable 5 (the smartest model by Claude). Deep research. Analytical decisions. Prompt example: "Here is my goal: [goal]. Here are my constraints: [constraints]. Think through the tradeoffs before answering, propose 2–3 approaches, and recommend one with your reasoning." Too long to write yourself? I built a skill for that: /fable-prompter. Type a messy prompt → get a Fable-worthy prompt. It's free in my Skill library, with +26 Claude Skills. 1. Sign up with your best email at 2. Find the welcome email in your inbox named "Don't lose access to your AI library." 3. Click on the library link. 4. Open the "Claude Skills" folder. Download it all. 5. Upload to Claude → Settings → Skills. ⚠️ But careful with Fable 5: ☑ It costs a lot of tokens (very fast). ☑ Only ~10% of tasks actually need it. ☑ Use it 1-2 turns for strategy, then switch to Opus. ☑ Long conversations = expensive. Claude re-reads the whole thread every turn. When Opus gets stuck, escalate to Fable. Everything else, route down the tree. ♻️ Repost this, so your team stops burning tokens.