Wanna / AI caption generators
AI caption generators for social posts: 6 compared
Written by Wanna AI. Checked on 17 Oct 2026, refreshed every 30 days. This page was written by Wanna AI; Wanna in this list is our product. The order is alphabetical, with Wanna last. It is not a ranking, and we did not test the five outside tools: everything about them is from their own pricing pages.
Short answer. This page is about the words under a post, not subtitles burned into a video (those are on the Reels editing list). Buffer, Later and SocialBee put a caption writer inside a scheduler. Jasper is a general marketing writer, and Predis.ai makes the post and its caption together. Wanna drafts captions from what it read on your site and waits for your OK.
How we chose
- The vendor names an AI feature that writes social captions or post copy, and we could read an amount on its pricing page on 17 Oct 2026.
- Every row has a minus, ours included. Prices change, so open the linked page first.
The six side by side
| Tool | What it does | Who it is for | Price and limits, read 17 Oct 2026 | Honest minuses |
|---|---|---|---|---|
| Buffer | Scheduler with an AI Assistant for post copy | Small teams that post to a few channels | Free $0: 3 channels. Essentials $5/mo for each channel, with unlimited AI credits. Team $10/mo for each channel | Free limits AI replies to 5 suggestions a week. The price grows with every channel you add |
| Jasper | General AI writer with saved brand voices | Marketers who write many kinds of copy | Pro $69/mo, or $59 on yearly billing with a 12-month commitment. One user included. 7-day free trial | No free tier. Not built around social posts, and Pro holds 2 brand voices |
| Later | Social scheduler with AI caption credits | Creators who post mostly to Instagram | Starter $18.75/mo on yearly billing: 5 AI credits a month. Growth $37.50/mo: 50 credits. Scale $82.50/mo: 100 credits. One credit makes one caption or three ideas | The page shows no monthly-billing amount. Starter gives five captions a month |
| Predis.ai | Makes posts, images and videos with captions from a prompt | Small brands that want a finished post | Core $19/mo on yearly billing ($32 monthly): 1,300 credits and 1 brand. Rise $40/mo on yearly billing ($79 monthly): 3,200 credits. 3-day free trial | Credits depend on the model you pick. Core has no auto posting, and the page text did not show which tiers include the caption tool |
| SocialBee | Scheduler with an AI Copilot for post copy | Solo operators and small agencies | Bootstrap $29/mo, or $290 a year: 5 profiles, 1 user, unlimited AI content generation. Accelerate $49/mo: 10 profiles | One user on the lower tiers. The AI Copilot checkmark is not stated for the largest tiers |
| Wanna | Drafts posts and captions for named channels from your site and library, for your OK | A founder with a site and no content staff | Free: the plan, matches and first drafts. Starter $20/mo for 200 credits. Growth $49/mo. Scale $149/mo | Not a caption box: no style presets or hashtag tool in the pages we read. Early: 0 paying companies at 13:28 UTC on 17 Oct 2026 (live) |
Where Wanna fits
Wanna does not wait for a prompt. It reads your site, picks the next post and writes the caption with the reason behind it. Posts show as Draft, In review, Scheduled, Published or Failed in the Content tab, and in Approve everything mode each one waits for your OK. To see captions for your company, start free. Related lists: AI social media schedulers and AI agents for small business.
What this list does not replace
A caption generator writes words that sound like a caption; it does not know your product, your customers or what you are allowed to claim. Read each caption for facts and promises before it goes out. It does not replace a legal check on endorsements and sponsored posts.
FAQ
What is an AI caption generator? It writes the text under a social post from a topic, a link or an image.
Which AI caption generator should a small business use? This list is not a ranking. Pick by where you work: inside a scheduler (Buffer, Later, SocialBee), as a general writer (Jasper), a finished post from a prompt (Predis.ai), or captions drafted from your site for your OK (Wanna).
Is there a free AI caption generator? Buffer lists a free tier with its AI Assistant, and Wanna's plan, matches and first drafts are free. Jasper lists a 7-day trial and Predis.ai a 3-day trial.
How much do AI caption tools cost? Among the prices we read, paid entry tiers run from Buffer Essentials at $5/mo for each channel and Later Starter at $18.75/mo on yearly billing to Jasper Pro at $69/mo.
Can AI write Instagram captions that sound like me? Jasper saves brand voices and Wanna writes from your own site; edit either so it says what you would say.
Paste your link and see the captions Wanna would draft first.