Short answer
Use a two-step, template-driven process: 1) extract the blog’s key ideas with a long-context model, 2) turn those into a consistent, sequenced LinkedIn thread using a single “brand-voice” master prompt. Automate batching via the API or the ChatGPT UI, then human-review and schedule.

Why this works
LinkedIn threads need a clear hook, 4–8 micro-ideas, connective transitions, and a CTA. Splitting extraction (what to say) from expression (how to say it) keeps voice consistent and reduces hallucinations from long posts.

Recommendation (practical)
- Use ChatGPT for most workflows (fast, easy prompts). If your posts are very long or you want exact source citation, consider Claude for longer-context extraction. CTA tool: ChatGPT.

Decision criteria
- Budget: use the ChatGPT UI for occasional repurposing; use the API for bulk/batched jobs. Paid tiers speed up throughput and let you keep style memory.
- Skill level: minimal prompt skill needed for UI workflows; intermediate prompt-engineering helps reduce edits for scale.
- Team size: single SMM can run prompt templates; teams should add a human-review step and an approval workflow.
- Output quality: high-quality/public-figure posts require more human polishing and brand QA.

One-page prompt flow (copy/paste and adapt)
1) Extraction prompt (paste the full blog):
"You are a content extractor. Read the following article and output: a one-sentence TL;DR, a list of 8–10 distinct micro-ideas (each 6–12 words), and three supporting data points/quotes (with exact sentence from the post). Preserve accuracy. Article: {paste blog}"

2) Thread-generation master prompt (feed TL;DR + micro-ideas + brand voice):
"You are [BrandName]'s LinkedIn copywriter. Brand voice: [3 short rules + 2 sample lines]. Goal: turn the TL;DR and micro-ideas into a LinkedIn thread of 6–8 sequential posts. Each post should: start with a hook or transition, be 1–3 short paragraphs (aim for 40–120 words total per post), include 1 optional emoji, and conclude the thread with a clear CTA (comment/save/visit). Keep consistent voice, avoid jargon, and reference original article once in the thread (e.g., 'More in the full article'). Provide a version for: (A) professional tone, (B) snappy/engagement-first. Output: numbered posts ready to paste as sequential LinkedIn comments."

Practical variations
- For Twitter-style 6–10 tweets, request 50–140 character lines and use hashtags. For LinkedIn, prefer slightly longer posts and a stronger CTA.

Best-for / Avoid-if
- Best for: repurposing evergreen blog posts, consistent brand voice, scaling content cadence.
- Avoid if: content needs legal/regulatory sign-off, requires technical accuracy without human validation, or must include unambiguous citations.

Checklist before scheduling
- [ ] Run extraction prompt and save the micro-ideas.
- [ ] Run thread-generation prompt (two tone variations if testing).
- [ ] Human review: facts, brand voice, banned words, legal check.
- [ ] Add final CTA and 2–4 relevant hashtags.
- [ ] Schedule in your social tool and flag for first 24h engagement (reply plan).

Extra tips
- Keep a short brand cheat-sheet (3 tone rules + 4 banned words) as part of the prompt.
- Batch 5–10 posts at a time with the API to keep consistency.
- A/B test hook styles (question, stat, bold claim) and iterate on the highest-engagement model.

If you want, I can give a ready-to-run ChatGPT prompt with placeholders filled for one of your blog posts.

Compare ChatGPT and Gemini