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This category covers tools built around large language models: infrastructure for deploying, fine-tuning, evaluating, and monitoring LLMs in production. With 369 tools listed, it is one of the more technical categories on the site, aimed primarily at developers and ML engineers rather than end users.

AI Text Generator Free

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Generate unique text for blogs, marketing, and writing projects

Free 38 · 64,455 votes

Superblog

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Fast, SEO-ready blogging platform with zero maintenance

Free 38 · 59,382 votes

MemoriPy

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Learn faster with spaced repetition and active recall

Free 37 · 46,407 votes

Story Path

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Generate story branches and plot ideas

Free 37 · 34,888 votes

Textbuddy

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AI writing tools for clear, human-like content

Free 36 · 30,790 votes

Botowski

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AI content generation for businesses

Free 36 · 29,726 votes

The Best Handwriting OCR with latex equations

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Handwriting and math OCR

Free 36 · 25,904 votes

Satellitor

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Automatically write and publish SEO blog posts

Free 36 · 23,253 votes

Articly.ai

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Generate SEO blog posts automatically

Free 36 · 20,471 votes

MagicBlog

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Auto-generate and publish SEO blog content daily

Free 35 · 13,227 votes

Anifusion

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Generate manga pages from story descriptions

Free 32 · 61,151 votes

GPT Reader & Transcriber

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Chrome extension for text-to-speech, speech-to-text, and dictation

Free 32 · 60,006 votes

Essay Typer

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Essay writer for academic assignments

Free 32 · 58,401 votes

Turn Your Videos Into Books, Lead Magnets & Sales Funnels

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Blueprint for converting videos and podcasts into books

Free 32 · 57,753 votes

Vexub

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Create short videos from text with AI

Free 32 · 53,443 votes

Thundr

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Free video chat with random people

Free 32 · 53,447 votes

Rayo AI Blog Writer

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Free AI blog writing tool

Free 32 · 52,886 votes

SpeedyAudios

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Convert WhatsApp audio messages to text

Free 31 · 34,576 votes

Symvol

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Transform complex ideas into consistent educational videos

Free 31 · 30,373 votes

aiausmalbilder

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Generate free printable coloring pages with AI

Free 31 · 28,492 votes

AI Song Generator

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Convert text descriptions into full songs

Free 30 · 27,673 votes

AI Voice Generator Bot

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Text to speech with 25+ voices

Free 30 · 21,856 votes

DaVinci AI

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Guide to using AI tools for content creation

Free 29 · 15,379 votes

KQBD

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Live soccer scores and match schedules

Free 29 · 13,009 votes

LLM tooling has exploded alongside the models themselves, and the category now spans several distinct problem areas. Deployment and serving tools like PeriFlow and Dstack help teams run models efficiently at scale. Evaluation and observability tools like UpTrain and AIWatch track model quality, drift, and cost over time. Memory and retrieval tools like Cognee add persistent context or RAG capabilities to LLM applications. When choosing, the key questions are infrastructure fit (cloud, on-prem, or hybrid), model compatibility (OpenAI-only vs. open-weight models), and whether the tool addresses your actual bottleneck, whether that is latency, cost, accuracy, or developer velocity. Pricing structures vary: some tools charge per token processed, others per seat or per API call. Open-source options exist across most sub-categories, which is worth considering for teams with engineering capacity to self-host.