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AI Services for Marketer that Solve "Social Media Post Content Generation"

AI Services for Marketer that Solve "Social Media Post Content Generation"

Keeping up a steady posting cadence matters for social media, but each platform demands a different format—text, image, video—and many marketers struggle with running out of ideas or simply not having enough time. Here you can compare AI tools that support social media post creation.

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ジャスパー

Jasper

Jasper is an execution platform built for marketing teams (from Jasper AI, Inc.). It has grown from an AI writing tool into a marketing execution platform equipped with over 100 specialized AI agents, content pipelines, and Jasper IQ, which retains brand context. From GEO/SEO to personalization and multilingual content, it lets you produce content quickly and at scale while keeping the brand consistent. Pricing is Pro at $59/month (annual) or a custom Business plan, with a free trial available.

# コピーライティング# SEO# テキスト生成# AIエージェント

ライトソニック

Writesonic

Writesonic is an "AI Search Growth Engine" (GEO/SEO platform) that measures your visibility across AI search surfaces such as ChatGPT, Gemini, and Google AI Overviews and improves it through content and technical work so your brand gets recommended and cited. Reinvented from its earlier AI writing tool (Chatsonic), it pinpoints which prompts get competitors recommended, fixes the gaps with AI articles and AI agents (Action Center), and demonstrates the impact all the way through to traffic, pipeline, and revenue. It is used by more than 10,000 marketing teams worldwide. Pricing starts at Starter $79, Basic $199, and Growth $399 (per month, billed annually) and more, with a free trial that requires no credit card.

# LLMO・GEO（生成AI検索最適化）# SEO# マーケティング# AIエージェント# コピーライティング

コピードットエーアイ

Copy.ai

Copy.ai is an "AI-native GTM platform" that embeds AI across the entire sales and marketing (GTM) workflow. It has evolved from a former AI copywriting tool into a platform that runs everything from prospecting to content creation and deal support on a single foundation. With Workflows, Actions, Agents, Tables, Chat, and more it standardizes and automates processes, supporting 2,000+ integrations and being LLM-agnostic. Pricing includes the self-serve Chat plan at $29/mo and Enterprise (credit-based, demo required). Used by more than 17 million people worldwide.

# コピーライティング# SEO# テキスト生成# AIエージェント

クソドットエーアイ

quso.ai

An all-in-one AI social-media tool (formerly vidyo.ai) covering long-to-short clipping, video editing, captions, post scheduling, and analytics. It also does video generation, content repurposing, and pre-post engagement prediction (Virality Score). Free plan available.

# テキスト生成# マーケティング

ラテエーアイ

Latte AI

[Discontinued] Latte was an AI video-repurposing tool that automatically clipped long videos and podcasts into vertical social shorts with animated subtitles (35 languages), but it was discontinued on November 30, 2025 (annual subscribers were fully refunded). The team officially recommends Opus Clip and Submagic as alternatives. Operated by Latte Social (London).

# テキスト生成# マーケティング

リフ

Riff

A free Chrome extension from Zima Media OÜ in Estonia that drafts social media replies, DMs and posts on X, LinkedIn, Facebook and Instagram. Because it runs Gemini Nano, the Google AI built into Chrome, on your own computer, posts and drafts are never sent to an outside server, and no account or API key is needed. Give it your point and it writes text fitted to the post or conversation and fills the input box (you press send). It can also write in Japanese. It requires desktop Chrome 138 or newer, 22 GB of free space and other hardware conditions.

# コピーライティング# テキスト生成# マーケティング# 日本語対応

ディストリブ

Distribb

Distribb is an AI SEO platform from Mind Ahead LLC. It researches buyer-intent keywords, writes long-form SEO articles in your brand voice and publishes them automatically to WordPress, Shopify, Webflow and other CMSs, exchanges contextual backlinks between member sites in the same niche, and tracks whether ChatGPT, Gemini, Perplexity and other AI search engines cite you, all driven by a built-in AI agent you instruct in plain English. Pricing: Pro $97/month (30 articles/month) and Accelerator $495/month (90 articles/month plus done-for-you video and social distribution), with a 7-day free trial.

# SEO# LLMO・GEO（生成AI検索最適化）# コピーライティング# マーケティング# AIエージェント# 自動化・省力化

ジェミニ

Gemini

Gemini is an AI assistant provided by Google. Built on Gemini models (Flash-Lite, Flash, and Pro, plus Gemini 4 Argon—the latest model, launched October 13, 2026—on AI Pro and Ultra), it runs question answering and writing plus Deep Research, Gemini Live (voice), Canvas, and image/video generation in a single app. It integrates deeply with Google services such as Gmail, Google Docs, Search, Google Flow for video generation, and Gemini Notebook for research support. Pricing: free (Flash-Lite only from October 9, 2026), Google AI Plus ¥725 (up to Flash) / Pro ¥2,900 (up to Pro) / Ultra ¥14,500– (monthly).

# 生成AI（LLM）# AIチャットボット# 要約・翻訳# テキスト生成# AIエージェント# 日本語対応

チャットジーピーティー

ChatGPT

ChatGPT is an AI assistant provided by OpenAI, the conversational service at the center of the generative AI boom. Since October 2026, Chat runs on GPT-6 (GPT-6 Sol on paid plans, GPT-6 Luna on Free and Go), and the new Intelligent UI builds charts, buttons, forms, and small tools into answers. With the Chrome extension, Chat can read your open tabs and Work can operate them to fill out forms, send messages, and download files (all plans). ChatGPT Slides lets you create and co-edit decks in real time (Pro, Business, Enterprise). It also offers Deep Research, image generation, data analysis, voice conversation, and a coding agent (Codex), plus projects, scheduled tasks, custom GPTs, and workspace agents. Pricing is free / Go ¥1,400 / Plus ¥3,000 / Pro ¥16,800– (individual, monthly), with Business and Enterprise for organizations.

# 生成AI（LLM）# AIチャットボット# 要約・翻訳# テキスト生成# AIエージェント# 日本語対応

クロード

Claude

Claude is an AI assistant provided by Anthropic. It emphasizes long-context understanding and safety and reliability, with strengths in writing, summarizing, analysis, and coding. You can use the latest Claude models (Opus/Sonnet/Haiku) as suited to the task, and it includes Artifacts for generating and editing on the spot, Projects for gathering documents, Claude Code for developers, and MCP for connecting to external tools. Pricing is Free $0 / Pro $20 (annual $200) / Max $100 (formerly Max 5x) / Ultra $200 (formerly Max 20x; no 5-hour limit for verified accounts), with Team and Enterprise also offered. Since October 2026, Max, Ultra, and Team include monthly API credits (Max $100 / Ultra $200; Team up to $500).

# 生成AI（LLM）# AIチャットボット# 要約・翻訳# テキスト生成# AIエージェント# 日本語対応

キャンバ

Canva

Canva is an all-in-one online design platform that lets you create any kind of design by drag and drop, even with no design knowledge. You can create more than 1,000 kinds of designs such as presentations, social media posts, videos, and flyers from a rich library of templates and assets. Canva AI handles generation and editing, and since October 2026 all users can generate images with Canva Craft, Canva's first in-house image generation model (also available via API). With Affinity integrated, you can handle everything from creation to collaborative editing, printing, and brand management in one place. Pricing includes a free plan as well as Canva Pro at ¥11,800/year and Business at ¥18,800/year (per person, billed annually), among others.

# デザイン生成# 画像生成# プレゼン・スライド生成# テキスト生成# 日本語対応

キャップカット

CapCut

CapCut is a video editing app from Bytedance Pte. Ltd. (Singapore), part of the ByteDance group behind TikTok. It runs on mobile, desktop, and browser, offering auto captions, background removal, and AI image/video generation for free to start. CapCut Pro costs JPY 1,080+/month or JPY 9,900/year via the Japan App Store (as of August 2026), with a fully Japanese UI.

# 動画生成# 字幕生成# 品質向上・クリエイティブ支援# 業務効率化# マーケティング# 日本語対応

オーパスクリップ

OpusClip

An AI video editing tool that analyzes long videos and automatically cuts out short, viral-worthy clips. Mass-produce shorts for YouTube, TikTok, and Instagram in one click with captions and vertical reframing. Features ClipAnything for clipping any video, ReframeAnything with subject tracking, virality-score selection, AI B-roll, and an auto-posting scheduler.

# 動画生成# 字幕生成# 業務効率化

グロック

Grok

A conversational AI assistant from xAI (led by Elon Musk). Its hallmark is answering with real-time, up-to-the-minute information via its integration with X (formerly Twitter). Beyond writing and coding, it offers web search, image and video generation ('Grok Imagine'), a voice mode, vision, and autonomous agent features. Supports Japanese.

# 生成AI（LLM）# AIチャットボット# テキスト生成# 画像生成# AIエージェント# 日本語対応

ディファイ

Dify

Dify is an open-source LLM app development platform for building, deploying, and operating AI apps, agents, and workflows with no-code/low-code. You can assemble chatbots, RAG, and multi-step workflows visually, and switch between the major providers' models. It supports both a cloud edition and self-hosting (OSS). Cloud pricing is Sandbox free / Professional $590 per year / Team $1,590 per year / Enterprise custom (17% off with annual billing), and the self-hosted Community edition is free.

# AIチャットボット# AIエージェント# ノーコード自動化# API・SDK# 業務効率化# 日本語対応

グーグルエーアイスタジオ

Google AI Studio

Google AI Studio is Google's developer platform to try the Gemini models in the browser, build and deploy AI apps, and get a Gemini API key. It's organized around Build (app generation), Chat, Stream, and Generate Media (image/video/audio), and offers the Gemini 3 family, Nano Banana image, Veo video, and more. AI Studio itself is free; the API is usage-based with a free tier. Note: on the free tier input is used to improve products; on the paid tier it is not.

# 生成AI（LLM）# AIモデル構築・管理# API・SDK# AIエージェント

バエヘンサチ

映え偏差値

A free AI photo-scoring service run by Inbayse Inc. in Saga Prefecture, Japan. Upload a photo, illustration, or AI image and it scores beauty, quality, and social media appeal, then shows a deviation score (average 50), percentile, ranking, and an AI comment. No login required; Photo / AI Photo / Illustration / AI Illustration / 3DCG are ranked separately.

# 品質向上・クリエイティブ支援# マーケティング# エンタメ／ゲーム・遊び# 日本語対応

ノーラング

NoLang

Mavericks Inc.'s made-in-Japan AI video generator. Enter text, a URL, or a PDF, and the AI analyzes it and auto-generates a video with an avatar narrating the explanation in seconds. Strong for education, training, manuals, and inbound PR in addition to vertical shorts; supports 18 languages and a Chrome extension. Over 200,000 registered users.

# テキスト生成# 動画生成# 日本語対応

ビデオブレイン

Video BRAIN

Video BRAIN, from Open8 Inc., is an AI video-editing cloud that lets anyone create business videos for internal training, sales, marketing, and recruiting without specialized skills. Drop material into a template and the AI edits automatically, through delivery and analytics. It officially claims "No.1 share for five years," with 1,100+ companies adopting it (about half of the Nikkei 225). It offers 3,500+ templates, royalty-free stock, and ChatGPT assist; pricing is by inquiry.

# 動画生成# マーケティング# セールス

トップビュー

Topview

An 'AI video agent' that plans scenes and picks models to generate video from an idea, script, reference video, or product URL. Beyond marketing videos it makes short films and vertical dramas, with every shot editable on Canvas; it orchestrates external models like Seedance. Credit-based from $29/mo.

# 動画生成# 生産性向上# 業務効率化# マーケティング

インフルエンス

Influence

Influence is an AI-assisted social media workspace that helps with everything from planning to drafting. Its AI, Influence IQ, uses your saved Brand Guidelines to suggest campaign posts and dates, then lets you tailor copy and media for each channel and schedule the posts. It supports 30+ destinations including Instagram, X, TikTok, YouTube, LinkedIn, Threads and Bluesky, and can be operated from ChatGPT or Claude via MCP. Available in 10 languages including Japanese; plans start at ¥2,357/month for Starter (excl. tax) with a 7-day free trial.

# マーケティング# テキスト生成# スケジューラー# 業務効率化# データ連携（API連携）# 日本語対応

ワンオブテン

1of10

An AI-powered YouTube research and ideation tool that finds 'outlier' videos (which greatly outperform a channel's or niche's average) and, based on them, generates winning ideas, titles, and thumbnails. Combining thumbnail generation trained on real YouTube data with outlier analysis, it handles click-worthy creative and CTR analysis in one place. Japanese UI supported.

# デザイン生成# マーケティング# 日本語対応

イージーピージーエーアイ

Easy-Peasy.AI

An all-in-one AI platform that lets you use 40+ AI models (Claude/GPT/Gemini, etc.) for text, images, video, audio, and AI agents under a single subscription. With 300+ templates and brand voice, it covers a wide range of content creation in one place.

# テキスト生成# 画像生成# 音声生成# 要約・翻訳# 日本語対応

クラウドワークスエーアイ

クラウドワークス AI

[Service discontinued on June 30, 2026] CrowdWorks AI (formerly OrderMaid AI), offered by CrowdWorks, Inc., was a subscription platform bundling AI tools for writing, image generation, and transcription. Aimed at freelancers and individuals, it offered 330+ text-generation tools and more, but ended all services on June 30, 2026. See the official notice for refund and data details.

# テキスト生成# 画像生成# 業務効率化# 自動化・省力化# 日本語対応

ヴィザード

Vizard

An AI video editing tool from Vizard, Corp. (USA) that turns long videos into short clips. Upload a YouTube video, podcast or webinar, and the AI transcribes it, picks the highlights and cuts them into captioned clips reframed to vertical. It also offers text-based editing (cut the video by deleting the transcript), caption translation into 100+ languages, brand templates, scheduled social posts and team sharing, plus a separate Vizard Agent that makes videos from instructions. Available on the web and as an iPhone app. Transcription supports Japanese (the interface and help center are in English). Free plan with 60 credits/month (1 credit = 1 minute of video); Creator $29 and Business $39 billed monthly (half price yearly).

# 動画生成# 字幕生成# 業務効率化# マーケティング

モンティ

Monty

Monty (monty.fast) is an AI video agent that takes one unedited vertical video shot on a phone and automatically cuts pauses, filler words and bad takes, adds speech-synced captions, music ducked under your voice, b-roll matched to what you say and cleaned-up audio, then exports versions for YouTube Shorts, Instagram Reels, TikTok and Telegram. It also writes scripts and offers a browser teleprompter. Currently in open beta: the Free plan gives 3 videos a month (watermarked), and paid plans start at $29/month for Creator (excluding tax). No Japanese interface.

# 動画生成# 字幕生成# AIエージェント# マーケティング# 業務効率化

ミューデザイン

Mew.Design

Mew.Design is an AI design agent that creates posters, flyers, social posts, invitations, menus, infographics, presentations and more from a plain-language description. It generates photos and artwork with image generation, but builds text such as headlines, prices and longer copy as code-generated layouts, so text stays legible and both text and layout remain editable afterward. It supports chat-based revisions (Chat Edit), Click Edit for adjusting selected elements, and "Meows" (skills) that save design instructions for reuse. A Japanese interface is available. The free plan gives 50 credits on signup; paid plans start at $5.69/month. It is operated by MAGOAI LTD in the United Kingdom.

# デザイン生成# 画像生成# AIエージェント# マーケティング# 品質向上・クリエイティブ支援# 日本語対応

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A Remedy for "Running Out of Ideas" and "Production Fatigue"

AI can handle everything from brainstorming post themes to writing captions and creating images or short videos, helping you maintain posting frequency without burning out. Some tools even tailor output to each platform's character limits and hashtag conventions, easing the load for marketers running multiple accounts at once.

Checklist for Choosing a Tool

How well it covers the format requirements of each platform (X, Instagram, TikTok, etc.)
Whether it handles text as well as image and video generation end-to-end
How easily you can adjust tone to avoid language that risks backlash
Whether it integrates with post-scheduling and analytics tools