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📖 The AI Tool Bible

AI tools tagged Free Tier

48 tools matching this tag.pricing

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AS

AssemblyAI

Audio · Universal / Slam-1
8.7

Speech-to-text API with diarisation, summarisation, and topic detection.

Freemium· Pre-recorded Speech-to-Text API: $0.21 /hr · Universal-2: $0.15 /hr · Realtime Speech-to-Text API: $0.45 /hr · Universal-Streaming: $0.15 /hr · Universal-Streaming Multilingual: $0.15 /hrtranscriptiondiarisation
DA

DataStax Astra DB

RAG · Bring-your-own embeddings; integrates with OpenAI, Cohere, Hugging Face, Mistral, NVIDIA NIM, and Vertex AI via server-side vectorize
8.6

Serverless vector and document database for production RAG and AI agents

Freemium· Small On-Demand: Contact sales · Medium (Balanced): Contact sales · Medium (Storage Optimized): Contact sales · Large (Balanced): Contact sales · Large (Storage Optimized): Contact salesRAG chatbot over enterprise documentsAgent long-term memory store
MA

MongoDB Atlas Vector Search

RAG · Bring-your-own embeddings (OpenAI, Cohere, open models); native Voyage AI embeddings and rerankers
8.6

Vector search built into the operational database you're already using.

Freemium· Free: $0 · Flex: Up to $30 · Dedicated: Starts at $56.94RAG over enterprise documentsProduct and content recommendation engines
ZE

Zed

Coding · Claude (Sonnet/Opus), GPT-4o/5, Gemini, Ollama-hosted local models, and Zed's own Zeta2 open-weight edit-prediction model
8.4

A high-performance, multiplayer code editor built in Rust with native AI agent workflows.

Freemium· Personal: $0 · Pro: $10 · Business: $30AI pair-programming with Claude or GPT agentsInline code refactoring via natural-language prompts
CO

Codeium

Coding · Proprietary + frontier models in Windsurf
8.3

Free, fast AI autocomplete + chat across 70+ editors.

Freemium· Free; Pro $15/mo; Teams $35/moautocompletechat
QW

Qwen

Writing · Qwen3 / Qwen-Image / Qwen-MT / Qwen3Guard
8.3

Alibaba's open-weight foundation model family covering chat, vision, image generation, translation, and safety classification.

Freemium· Open weights free; hosted API priced per-token via Alibaba Cloud DashScopechatreasoning
DA

Daytona

Agents
8.2

Secure, isolated sandboxes for running AI-generated code with sub-90ms cold starts.

Freemium· Pay-per-second from $0.000014/sec; $200 free creditagent-sandboxescode-interpreters
GA

Google AI Studio

Coding · Gemini 2.5 Pro / Flash, Imagen, Veo
8.2

Browser-based playground and API console for prototyping with Google's Gemini models.

Freemium· Free tier with rate limits; paid via Gemini API usage-based pricingprompt-prototypinggemini-api-keys
HF

Hugging Face AutoTrain

Fine-tuning · Multi-model (Hugging Face Hub)
8.1

No-code fine-tuning and training pipeline that spins up state-of-the-art models on the Hugging Face Hub.

Paid· Per-minute billing based on hardware tier; self-hosted OSS version is freellm-fine-tuningtext-classification
LA

Langflow

Agents · Multi-model
8.1

Open-source visual builder for LangChain-style AI agents and RAG pipelines.

Freemium· Open-source free; hosted free tier + paid enterprise via DataStaxagent-prototypingrag-pipelines
NO

NotebookLM

RAG · Gemini 2.5
8.1

Google's source-grounded research notebook that turns your documents into chats, briefs, and AI-hosted podcasts.

Freemium· Free tier; Plus via Google One AI Premium ($19.99/mo) or Workspace add-ondocument Q&Aresearch synthesis
CH

ChatGPT

Writing · GPT-4o, GPT-4.1, o-series reasoning models
8.0

OpenAI's flagship conversational assistant, and the default benchmark every other chatbot is measured against.

Freemium· Basic: $10 · Pro: $20 · Enterprise: Contact saleswritingcoding
CI

Civitai

Image Generation · Stable Diffusion (SD1.5, SDXL, SD3, Flux, Pony, Illustrious)
8.0

Community hub for Stable Diffusion models, LoRAs, and AI-generated imagery with on-platform generation.

Freemium· Bronze: $10 · Silver: $25 · Gold: $50stable-diffusion-modelslora-discovery
GE

Genmo

Video · Mochi 1
8.0

Open-source text-to-video model (Mochi 1) with a hosted playground for turning prompts into short clips.

Freemium· Free: $0/month · Lite: Loading... · Standard: Loading...text-to-videogenerative-video
BI

Bing Image Creator

Image Generation · DALL-E 3 (transitioning to Microsoft's newer image/video model)
7.9

Microsoft's free text-to-image generator built into Bing, with daily boost credits and mobile video.

Free· Free; 10 fast generations/day, unlimited slow queue, extra boosts via Microsoft Rewardstext-to-imagetext-to-video
BO

Boomy

Audio · Proprietary (undisclosed)
7.9

Generative AI music maker that lets anyone produce a song in under a minute and push it to Spotify.

Freemium· Free: $0.00 · Recommended: $14.99 · Pro: $39.99ai-music-generationsong-creation
DE

Deepgram

Audio · Nova, Flux, Speak (proprietary)
7.9

Production-grade speech-to-text, text-to-speech, and voice-agent APIs for real-time and batch audio.

Freemium· Free credits on signup; usage-based pricing; enterprise contracts availablespeech-to-texttext-to-speech
MU

Murf

Audio · Murf Gen2
7.8

TTS aimed at corporate voiceover and e-learning.

Freemium· Free preview; from $19/mo Creator; $66/mo Businessvoiceovere-learning
RE

Reve

Image Generation · Reve 2.0 (in-house autoregressive planner + diffusion renderer)
7.4

Image generation that treats pictures as editable code, not one-shot diffusion outputs.

Freemiumtext-to-imageimage-editing
RA

Rayyan

RAG
7.3

AI-assisted systematic review platform for screening, deduplicating, and extracting data from large literature corpora.

Freemium· Free forever for basic use; enterprise custom pricingsystematic-reviewliterature-screening
AF

Agno (formerly Phidata)

Agents · Multi-model
7.2

Open-source Python framework for building multi-agent systems, paired with a production runtime that ships in your own cloud.

Freemium· Free: Free · Pro: $150/mo · Enterprise: ?
BE

Beam

Coding · openai/gpt-oss-20b
7.2

Serverless GPU infrastructure for AI workloads with sub-second cold starts and bring-your-own-cloud support.

Freemium· $30 free credit refreshed monthly; usage-based beyond thatgpu-inferenceagent-sandboxes
CS

ChatGPT Shortcut

Writing · Multi-model
7.2

Curated, one-click prompt library covering ChatGPT, Claude, Gemini, and DeepSeek across writing, coding, and academic tasks.

Free· Free; open-source on GitHubprompt-libraryprompt-engineering
EM

Emergent Mind

RAG · Undisclosed
7.2

AI-curated arXiv discovery layer that summarizes frontier papers and aggregates social discussion around them.

Freemium· Basic: $0 · Pro: $12 /month · Max: $30 /montharxiv-discoverypaper-summarization
HA

Hailuo AI

Video · MiniMax Hailuo (02 series)
7.2

MiniMax's text-and-image-to-video generator known for fluid motion and cinematic camera work.

Freemium· Basic: $10 · Pro: $20 · Enterprise: Contact salestext-to-videoimage-to-video
KE

Keploy

Coding
7.2

Open-source AI testing platform that records real API traffic and replays it as regression tests in CI.

Freemium· Free playground (30 suites, 5 AI credits/mo); Pro $24/user/mo; Enterprise customapi-testingregression-testing
PA

Perplexity AI

RAG · Multi-model (Sonar, GPT-4 class, Claude, Gemini)
7.2

Conversational answer engine that cites its sources by default.

Freemium· Basic: $10 · Pro: $30 · Enterprise: Contact salesai-searchresearch
QC

Qwen Chat

Writing · Qwen3 family (Qwen3-Max, Qwen-VL, Qwen-Coder, Qwen-Image)
7.2

Alibaba's flagship chatbot fronting the Qwen family of open-weight LLMs, with vision, code, and image generation in one UI.

Free· Free with sign-in; paid API access via Alibaba Cloud DashScopechatreasoning
AS

AI Song Maker

Audio · Multi-model (ACE-Step, MusicGen, DiffRhythm, Riffusion)
7.1

Browser-based song generator that wraps multiple open music models behind a single freemium UI.

Freemium· Free: $0 · Basic: $14.99 · Standard: $29.99 · Pro: $59.99text-to-songlyrics-generation
DR

DaVinci Resolve

Video · DaVinci Neural Engine (proprietary)
7.1

Hollywood-grade post-production suite with a Neural Engine that quietly automates the tedious parts of editing, color, and audio.

Freemium· Free Version: Free · DaVinci Resolve Studio: $295video-editingcolor-grading
DW

DeepL Write

Writing · DeepL proprietary LLM
7.1

AI writing assistant from the team behind DeepL Translator, tuned for fluent rewrites across 19 languages.

Freemium· Free: Free · Pro: €20rewritinggrammar-correction
GR

Groq

Coding · Multi-model (Llama, Mixtral, Gemma, Qwen, Whisper)
7.1

Custom-silicon LPU inference platform serving open models at GPU-trouncing latency via an OpenAI-compatible API.

Freemium· Free API key with rate limits; per-token paid tiers; enterprise contractslow-latency inferencevoice agents
QU

QuillBot

Writing · Undisclosed (proprietary)
7.1

AI paraphrasing and grammar suite that grew into an all-in-one writing toolkit.

Freemium· Free: €0 · Premium: €8,33 · Team Plan: ?paraphrasinggrammar-check
RY

Rytr

Writing · Undisclosed
7.1

Budget AI writing assistant covering 40+ short-form copy use cases with a usable free tier.

Freemium· Free: $0/m · Unlimited: $7.50/m · Premium: $24.16/mshort-form-copyemail-writing
TI

Tiledesk

Agents · Multi-model
7.1

Open-source conversational AI platform for building multi-channel support agents and automation workflows.

Freemium· 14-day free trial; freemium, paid, and enterprise tierscustomer-supportrag-knowledge-base
CA

Compose AI

Writing
7.0

Chrome extension that adds Gmail-style AI autocomplete to virtually any text field in the browser.

Freemium· Premium: $9.99/mo · Ultimate: $29.99/moemail-autocompleteai-writing-assistant
GF

GPT for Sheets and Docs

Writing · Multi-model
7.0

Multi-model AI add-on that turns Google Sheets and Docs into a bulk text-processing engine.

Freemium· Starter: €3.40 EUR · Standard: €6.80 EUR · Plus: €10.55 EUR · Enterprise: Contact salesbulk-text-generationtranslation
LA

LangFast

Evaluation · Multi-model
7.0

No-signup LLM playground for testing, comparing, and versioning prompts against your own API keys.

Paid· One-time lifetime ~$60-$120; 14-day money-backprompt-testingprompt-versioning
MC

MindsHub Cowork

Agents · Multi-model
7.0

Unified workspace for open-source AI agents that turn tasks into shareable documents, dashboards, and apps.

Paid· Free: $0 · Pro: Pay as you godocument-generationdata-analysis
PH

Phind

Coding · Phind-70B / Phind-405B plus GPT and Claude models on Pro
7.0

AI answer engine for developers that cites sources and writes working code.

Freemium· Basic: $10 · Pro: $20 · Enterprise: Contact salescode-searchdebugging-help
SM

SMMRY

Writing
7.0

Veteran web-based summarizer that condenses articles, books, and YouTube videos into digestible bullet points.

Freemium· Free (10 summaries); Essential $7/mo yearly; Advanced $13/mo yearlyarticle-summarizationresearch-reading
YS

YouTube Summary with ChatGPT & Claude

Writing · Multi-model (ChatGPT, Claude, Gemini, Mistral)
7.0

Browser extension that pipes YouTube transcripts, articles, and PDFs into ChatGPT, Claude, Gemini, or Mistral for instant summaries.

Freemium· Basic: $10 · Pro: $20 · Enterprise: Contact salesyoutube-summarizationarticle-summarization
ZA

Z.ai

Writing · GLM-5.2 (GLM family)
7.0

Zhipu AI's free chat interface powered by the GLM family of large language models.

Freemium· Free chat tier; paid API and Pro plans via z.ai open platformgeneral chatlong-form writing
AG

AgentGPT

Agents · GPT-3.5 (BYO key for others)
6.9

Browser-based autonomous AI agent builder that chains GPT calls toward a goal you define.

Freemium· Free tier with limited monthly runs; paid plans for higher usageautonomous-agentstask-automation
BL

Based Labs

Video · Multi-model (FLUX, Seedance, WAN, Kling, Nano Banana)
6.9

Multi-model AI playground for image, video, and voice generation with a generous free tier.

Freemium· 300 Credits: $10 · 900 Credits: $29 · 1,600 Credits: $50 · 3,300 Credits: $99 · 10,000 Credits: $299text-to-videotext-to-image
FL

FlowGPT

Writing · Multi-model
6.9

Community marketplace for AI character roleplay scenarios and prompt templates.

Freemium· Free browsing; in-app wallet/credits for premium chatsprompt-discoverycharacter-roleplay
MO

Moltbook

Agents
6.9

A social network where AI agents post, comment, and vote — humans verify ownership via X.

Free· Free during early access; no public pricingagent-identityagent-to-agent-comms
YA

Yomu AI

Writing · Multi-model (GPT-4o/5, Claude Sonnet/Opus, Gemini Flash)
6.9

AI writing assistant built specifically for students and academic researchers.

Freemium· Free tools; Pro $11/mo, Ultra $18/mo (annual); $499 lifetimeacademic-writingessay-drafting