Best AI LinkedIn Post Generators for Small B2B Founders, Ranked by Published Pricing, AI Credit Model, and Voice Fit

Supergrow is a LinkedIn-only AI writing and scheduling tool pitched directly at solo creators and small B2B teams. <cite index="24-26,24-27,24-28">Pricing starts at $19/month for the Starter plan, which includes voice-trained AI writing (Content DNA) and scheduling. The Pro plan at $39/month adds the carousel designer, infographic generator, and full analytics. A Teams plan at $139/month covers four accounts with approval workflows and employee advocacy features.</cite> (cite index="24-6">Supergrow connects through LinkedIn's official API with no cookies and no extension-based scraping, which puts it in the safer half of this group.</cite> Two caveats are worth knowing: (cite index="22-4">analytics are absent on Starter and Pro-only at $39/mo</cite>, and the PostCast interview feature that turns a spoken conversation into drafted posts is (cite index="21-2">capped at 2 sessions/month on Starter</cite>, which a founder running weekly interviews outgrows quickly.

Taplio is a LinkedIn-only platform with AI content generation, a viral post database, scheduling, analytics, and (on its top tier) a lead database with outreach automation. (cite index="41-8,41-9,41-10">Pricing in 2026 is $39 Starter, $69 Growth, and $199 Pro per month (about $32 / $49 / $149 on annual). Starter has 0 AI credits, so the plan that actually buys AI writing is Growth. Pro unlocks unlimited AI plus outreach automation through the Taplio X Chrome extension.</cite> That credit structure is the central tradeoff: Growth meters AI generation while Pro removes the cap, and heavy posters on Growth can exhaust their monthly allowance before month-end. On account safety, (cite index="9-13">the Pro plan's automation features violate LinkedIn's Terms of Service</cite>. Content use on Growth is lower risk, but any founder considering Pro should price in the account exposure.

AuthoredUp is a LinkedIn writing desk rather than an AI content engine. (cite index="16-14,16-15">The editor adds formatting LinkedIn doesn't natively offer, bold, italics, and clean line breaks, with a preview so you see the post before you publish it. The hook library saves you staring at a blank first line.</cite> <cite index="17-10,17-11,17-12,17-13">There's no AI on any plan. No AI post-generation, no writing assistant, no voice learning. The 150 carefully designed hooks and 100+ CTA templates are pre-written formulas. If writing the post is still your challenge, no AuthoredUp plan solves that, and that's the part worth thinking about before you subscribe.</cite> The AuthoredUp team has publicly discussed a Coauthor AI beta that trains on past posts, but it isn't yet a generally-available feature.

Buffer is a general social scheduler whose AI assistant is included on every tier. (cite index="43-4">A single user on Essentials pays $6/channel/mo monthly or $5/channel/mo annually, and the AI Assistant is free with unlimited credits on every plan including Free (3 channels, 10 scheduled posts per channel)</cite>. The AI Assistant helps brainstorm ideas, rewrite content, and craft platform-specific posts across Buffer's supported channels, which for content-led businesses that produce regular written content can turn a single piece of content into material for multiple platforms. The honest limits: Buffer is a scheduler with AI help, not a LinkedIn-specialized voice-trained writer. There's no sample-based style profile, no viral post library, and no LinkedIn-specific analytics depth comparable to the LinkedIn-native tools above.

Kleo rebuilt as a web app after (cite index="33-6,33-7">its original in-LinkedIn Chrome extension reached 70,000+ users before LinkedIn asked the team to take it down in 2025. Kleo 3.0 is now a paid web app.</cite> (cite index="31-5,31-6">Kleo now runs on a single plan at $99/month (or $999/year, roughly $83/month billed annually). There are no tiers, credit caps, or feature gates, and it includes unlimited AI post generation plus 20 graphics per month. There's no free trial, but Kleo offers a 30-day money-back guarantee.</cite> (cite index="33-14,33-15,33-16">Kleo runs a single tier at $99/month or $999/year. There's no 'starter' plan, no AI credit limit to upgrade past, no add-on you can buy at a lower price. You pay $99/month for the full product, or you don't use it.</cite> The all-in plan is coherent for a founder who wants unlimited AI, a knowledge base, templates, and the included group coaching, and who treats the 30-day guarantee as the trial. For most other buyers it's the most expensive tool in this group.