Social Media Content

Updated November 2, 2026 — Le Chat is now Vibe. As of May 28, 2026, Le Chat has been rebranded as Vibe (still at chat.mistral.ai): a single agent for work and code that retains your conversations, settings, and subscriptions. The legacy Le Chat experience remains available in Chat mode; in Work mode, agents are now skills (invoked with @), memories serve as the knowledge base, and deep research is the Deep Research skill. The plans are now called Mistral Free, Pro, Team, and Enterprise. This lesson uses the name Vibe; note that some menus described here may have changed names or locations.

Every Platform Has Its Own Language

A post that performs well on LinkedIn will vanish on Twitter/X and feel out of place on Instagram. Each social network has its own conventions, algorithms, and audiences. This is why automatic cross-posting yields mediocre results everywhere. Mistral Vibe helps you adapt your message to each platform without starting from scratch every time.

LinkedIn: B2B and Personal Branding

LinkedIn favors long-form content, strong points of view, and professional storytelling. The algorithm rewards engagement within the first few hours, giving the opening sentence disproportionate importance: it determines whether the reader clicks “see more.”

Example prompt: “Write a 1,200-character LinkedIn post on the following topic: why marketing teams must integrate AI into their workflows now. Structure: a punchy hook (one shocking sentence), body in short paragraphs (2–3 lines max), conclusion with an open-ended question to drive engagement. Tone: expert but accessible, not arrogant. Add relevant emojis sparingly (max 3).”

Carousels follow a different mechanic: each slide must stand alone and entice the user to swipe to the next. The word limit per slide isn’t cosmetic; it dictates readability on mobile.

Example prompt: “Create the text content for an 8-slide LinkedIn carousel on ‘5 Copywriting Mistakes That Kill Your Conversions.’ Structure per slide: Slide 1 = catchy title; Slides 2–6 = one mistake per slide with title + short explanation + fix; Slide 7 = summary; Slide 8 = CTA + bio. Max 40 words per slide.”

Finally, commenting on a viral post is the most underestimated lever on the network: it places you in front of an audience already gathered by someone else. The trick is to offer more than a generic “great post.”

Example prompt: “Here is a viral LinkedIn post in my industry: [content]. Write a 3–4 line comment that adds a complementary perspective, demonstrates my expertise, and encourages readers to check out my profile. No empty flattery.”

Twitter/X: Brevity and Responsiveness

Twitter demands brevity (280 characters) and responsiveness. Simply relaying news without commentary has no impact here: the angle travels, not the fact.

Example prompt: “Turn this news item: [fact or data] into a punchy tweet of max 250 characters. The tweet must include an opinionated angle, not just relay the info. Provide 3 versions: provocative, informative, and humorous.”

Threads allow for a more developed format, following a specific construction rule: each tweet must remain understandable on its own, as readers often jump into the middle of a thread via a quote.

Example prompt: “Create a 7-tweet Twitter thread on ‘How We Doubled Our Organic Traffic in 6 Months.’ Tweet 1: hook with a quantified result. Tweets 2–6: one strategy per tweet, concrete and actionable. Tweet 7: summary + CTA to our blog. Each tweet: max 270 characters, standalone (understandable on its own).”

Instagram: Visuals and Emotion

On Instagram, text supports the visual. Captions should be engaging, but the image or video remains the primary content; the caption works in its shadow. The first line is visible before the “more” cut-off; the rest will only be read if that first line convinces the user to expand.

Example prompt: “Write an Instagram caption for a photo of our team at a retreat. Tone: authentic and human. Structure: catchy first line (visible before ‘more’), body text (team values, behind-the-scenes), subtle CTA, relevant hashtags (10–15, mix of popular and niche). Max 200 words before hashtags.”

For Reels, the logic shifts to timing. Thirty seconds must be carved out to the exact second, and overlay text requires phrases the eye can grasp in a single glance.

Example prompt: “Propose a script for a 30-second Instagram Reel on ‘3 Essential AI Tools for Marketers in 2026.’ Structure: visual hook (3 seconds), 3 tools presented quickly (7 seconds each), final CTA (5 seconds). Text must appear as an overlay, so use very short phrases.”

Adapting One Piece of Content to All Networks

Vibe’s strength lies in transforming a single message into multiple formats in one go. The principle is the same as a press officer adapting a press release: identical core message, tailored treatment for each medium.

Example prompt: “Here is our latest blog post: [title + 200-word summary]. Based on this content, create: 1 LinkedIn post (1,000 characters, expert angle), 1 tweet (270 characters, key fact), 1 Instagram caption (150 words, human angle + hashtags), 1 Facebook post (300 words, community angle). Same core message, tone adapted to each platform.”

Planning Your Editorial Calendar

Creating content isn’t the same as publishing it. Without a calendar, content goes out in bursts during weeks you have time, then nothing for a month—the worst-case scenario for both algorithms and your audience.

Example prompt: “Create a social media editorial calendar for the next 2 weeks. My channels: LinkedIn (3 posts/week), Twitter (1 per day), Instagram (2 per week). This month’s theme: responsible marketing. For each publication, specify: date, platform, format (post, thread, carousel, story), topic, and angle.”

Key Takeaways

• Each social network has its own conventions for format, tone, and length
• LinkedIn prioritizes expertise and long-form professional storytelling
• Twitter demands brevity and a distinct opinionated angle
• Instagram puts visuals first; text must be emotional and authentic
• Start with a single source content piece and adapt it to each platform using Vibe
• A structured editorial calendar ensures consistency and coherence