📖 The AI Tool Bible

What's new

The 50 most recently added or refreshed AI tools in our directory.

Sim

Agents · Multi-model (Claude, OpenAI, Google)

Open-source visual workspace for building, deploying, and monitoring AI agents.

Freemium· Free (1,000 credits/mo); Pro $25/user/mo; Max $100/user/mo; Enterprise customagent-workflowsinternal-automation

Rivet

Agents · Multi-model

Open-source visual IDE for building and debugging LLM agent graphs.

Free· Free and open source (MIT)agent-orchestrationprompt-chaining

Semantic Kernel

Agents · Multi-model

Microsoft's open-source SDK for wiring LLMs, plugins, and agents into enterprise .NET, Python, and Java apps.

Free· Free, MIT-licensed SDK; you pay for the underlying model APIsagent-orchestrationllm-plugins

TruLens

Evaluation · Multi-model (LLM-as-judge)

Open-source evaluation and tracing framework for LLM apps and agents, built on OpenTelemetry.

Free· Free, open source (Apache-licensed Python package)llm-evaluationrag-evaluation

Topaz Video AI

Video · Proprietary (Proteus, Iris, Nyx, Starlight Precise, +20 models)

Desktop AI video enhancer for upscaling, denoising, stabilization, and frame interpolation up to 8K/120fps.

Paid· Personal $299/yr, Pro $699/yr, Studio bundle $399/yr; watermarked trialvideo-upscalingdenoising

W&B Sweeps

Fine-tuning

Hyperparameter optimization from Weights & Biases with Bayesian search and Hyperband early stopping.

Freemium· Free for personal use; team and enterprise tiers via W&Bhyperparameter-tuningbayesian-optimization

OpenHands

Agents · Multi-model (Claude, Gemini, GPT/Codex)

Open-source autonomous coding agent that plans, edits, and ships changes across real codebases.

Freemium· Free OSS tier; paid Team plan; Enterprise quoteautonomous-codingpr-review

CoreWeave

Fine-tuning

AI-native GPU cloud built for large-scale training, fine-tuning, and inference on NVIDIA hardware.

Enterprise· Contact sales; Capacity Plans with reserved GPU commitmentsmodel-trainingfine-tuning

Wan AI

Video · Wan 2.1 / Wan 2.2

Alibaba's generative video and image playground, wrapping the open Wan model family in a consumer web app.

Freemiumtext-to-videoimage-to-video

AgentOps

Agents · Multi-model

Observability and debugging platform purpose-built for AI agents, with time-travel replay and cost tracking across 400+ LLMs.

Freemium· Free up to 5,000 events; Pro from $40/mo; Enterprise customagent-observabilityllm-tracing

ProWritingAid

Writing · Multi-model (proprietary + LLM-assisted features)

AI-powered writing coach and manuscript editor built for fiction authors and long-form writers.

Freemium· Free tier; Premium ~$30/mo or ~$120/yr; Premium Pro and lifetime licenses availablefiction-editingmanuscript-analysis

Higgsfield

Video · Multi-model (Sora 2, Veo 3.1, Kling 3.0, Seedance 2.0, Nano Banana Pro)

AI video and image generation suite that aggregates 30+ frontier models under one workflow.

Paid· Subscription tiers (pricing not clearly published on landing)text-to-videoimage-generation

Apple Intelligence

Writing · Apple Foundation Models + Private Cloud Compute; optional ChatGPT

Apple's on-device AI layer baked into iOS, iPadOS, macOS, and visionOS with a rebuilt Siri, writing tools, and image generation.

Free· Free with supported Apple hardware; no subscriptionwriting-assistancesummarization

Google Veo

Video · Veo 3.1

Google DeepMind's flagship text-to-video model with native audio generation and cinematic camera control.

Paid· Metered via Gemini API; also bundled in Google AI and Workspace planstext-to-videoimage-to-video

Palantir AIP

Agents · Multi-model (GPT, Claude, Llama, customer-hosted)

Enterprise AI platform that grounds LLMs in your operational data and runs agents against real business systems.

Enterprise· Contact sales; typically bundled with Foundryenterprise-agentsoperational-ai

Sesame

Audio · Sesame CSM (1B / 3B / 8B)

Conversational voice AI aiming to cross the uncanny valley with context-aware, emotionally aware speech.

Free· Free research preview; consumer product pricing not announcedconversational-voicetext-to-speech

Fal.ai

Image Generation · Multi-model (Flux, Stable Diffusion, video/audio models)

Serverless GPU inference platform optimized for fast diffusion and generative media APIs.

Paid· Usage-based; serverless from ~$1.89/GPU-hour, per-output pricing on model APIstext-to-imagetext-to-video

Hume AI

Audio · Octave, EVI, TADA

Emotionally intelligent voice AI with expressive TTS, speech-to-speech, and human-feedback evaluation APIs.

Freemiumexpressive-ttsvoice-cloning

Hugging Face AutoTrain

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

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

LTX Studio

Video · LTX-2, LTXV-13B, Veo 3, Flux.2

Storyboard-first AI video platform from Lightricks with shot-level camera and character control.

Freemium· Free tier plus paid subscription planstext-to-videostoryboarding

Grammarly

Writing · Proprietary + multi-model

Cross-app AI writing assistant that catches errors, rewrites paragraphs, and adjusts tone in the tools you already use.

Freemium· Free; Pro $12/mo annual or $30/mo; Enterprise customgrammar-checktone-adjustment

InVideo AI

Video · Multi-model (Sora 2, Veo 3.1, Kling 3.0, ElevenLabs, Minimax, 200+ others)

Agentic AI video platform that turns scripts into fully edited, multi-shot videos across 200+ models.

Freemium· Free tier with limits; paid Individual and Team/Enterprise plans (see pricing page)text-to-videoai-video-editing

RunPod

Fine-tuning · Bring-your-own (any open-weight or custom model)

On-demand GPU cloud and serverless inference platform built specifically for AI workloads.

Paid· Pay-per-second GPU rental; H100 from ~$1.89/hr, consumer GPUs from ~$0.20/hrllm-fine-tuninggpu-rental

Genmo

Video · Mochi 1

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

Freemium· Free playground; open weights available; paid tiers not clearly disclosedtext-to-videogenerative-video

Inspect AI

Evaluation · Multi-model

Open-source LLM evaluation framework from the UK AI Security Institute with 200+ built-in benchmarks.

Free· Free and open source (MIT-style license); you pay only for underlying model API usage.llm-benchmarkingagent-evaluation

Argil

Video · Proprietary avatar model; integrates VEO3 and Hailuo for AI Fictions

AI avatar video generator that clones your face and voice from a single photo and a minute of audio.

Paid· 5-day trial; Classic $39/mo, Pro $149/mo, Scale $499/mo, Enterprise customai-avatarstalking-head-video

Reflect

Writing · OpenAI GPT-4 + Whisper

Networked note-taking app with GPT-4 and Whisper baked into the writing surface.

Paid· $10/month billed annually; free trial availablenote-takingvoice transcription

Together AI Fine-tuning

Fine-tuning · Multi-model (any Hugging Face open-source model)

Managed fine-tuning platform for open-source LLMs and vision models with LoRA, full fine-tuning, and RL support.

Paid· Usage-based; cost estimator in-product, no public price listllm-fine-tuningvision-fine-tuning

Vidu

Video · Vidu (proprietary)

Multimodal AI video generator with strong reference-image consistency for characters and props.

Freemium· Free credits on signup; Creator Plan + CPP paid tiers; unlimited off-peak generationstext-to-videoimage-to-video

Hedra

Video · Character-3 (proprietary) + multi-model canvas

AI creative agent for character-driven video, image, and audio generation built around the Character-3 model.

Freemium· Free tier; Basic $15/mo, Creator $30/mo, Professional/Teams $75/mo, Enterprise customtalking-avatar-videocharacter-animation

Athina AI

Evaluation · Multi-model

Collaborative LLM evaluation and observability platform for teams shipping AI features to production.

Freemium· Starter free (10k logs/mo); Pro & Enterprise customllm-evaluationprompt-management

Giskard

Evaluation · Multi-model

Continuous AI red teaming platform that stress-tests LLM agents for vulnerabilities before they hit production.

Freemium· Open-source free tier; Giskard Hub enterprise pricing on requestllm-red-teamingagent-security-testing

Agno (formerly Phidata)

Agents · Multi-model

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

Freemium· Framework free/OSS; AgentOS paid (see pricing page)

Langflow

Agents · Multi-model

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

Databricks Vector Search

RAG · Multi-model (BYO embeddings or Databricks-hosted)

Managed hybrid vector search that lives inside the Databricks lakehouse and auto-syncs with your source tables.

Enterprise· Consumption-based via Databricks; free trial availablerag-retrievalhybrid-search

NovelCrafter

Writing · Multi-model (BYO key: OpenAI, Anthropic, Gemini, Mistral, OpenRouter, Ollama)

Bring-your-own-key novel-writing workspace with a wiki-style codex and multi-model AI assistance.

Freemium· From $4/mo; 21-day free trial (no credit card); BYO AI API keysnovel-writingworldbuilding

DaVinci Resolve

Video · DaVinci Neural Engine (proprietary)

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

Freemium· Free; Studio one-time $295 (unlocks AI Neural Engine)video-editingcolor-grading

DomoAI

Video · Multi-model (70+ video models)

Multi-model AI video platform covering text-to-video, image-to-video, style transfer, and talking avatars.

Freemium· Free tier with credits; paid subscriptions for higher usagetext-to-videoimage-to-video

Lambda

Fine-tuning

On-demand NVIDIA GPU cloud built specifically for training, fine-tuning, and serving large AI models.

Paid· Pay-by-the-minute: A100 from $1.29/hr, H100 SXM from $3.99/hr, B200 from $6.69/hr; clusters priced by quotellm-trainingfine-tuning

OpenPipe

Fine-tuning · Llama, Mistral, Qwen and other open-weight base models

Fine-tuning and reinforcement learning platform for turning expensive prompts into cheap, fast, task-specific models.

Freemium· Free tier available; usage-based pricing for training and hosted inference; enterprise plans on requestllm-cost-reductionfine-tuning

ElevenLabs Conversational AI

Audio · ElevenLabs Scribe (ASR) + pluggable LLM + ElevenLabs TTS

Production-grade voice agent platform layering ElevenLabs TTS, ASR, and LLM orchestration into a single deployable stack.

Paid· Usage-based; contact sales for enterprisevoice-agentsivr-replacement

OpenAI Evals

Evaluation · OpenAI GPT models (extensible)

OpenAI's open-source framework for benchmarking LLMs against a shared registry of evaluations.

Free· Free (MIT); you pay OpenAI API costs for eval runsllm-benchmarkingregression-testing

LanceDB

RAG

Open-source multimodal lakehouse and vector database built for AI training and retrieval at petabyte scale.

Freemium· Open-source free; LanceDB Cloud and Enterprise via contact salesvector-searchrag

HoneyHive

Evaluation · Multi-model

OpenTelemetry-native observability and evaluation platform for LLM agents in production.

Freemium· Free tier available; paid/enterprise tiers via salesagent-observabilityllm-evaluation

Deepgram

Audio · Nova, Flux, Speak (proprietary)

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

Writer

Writing · Palmyra (in-house)

Enterprise generative AI platform built around in-house Palmyra LLMs for regulated, brand-consistent content.

Enterprise· Team from ~$18/user/mo; Enterprise and AI Studio custom-pricedenterprise-writingbrand-voice

Kaiber

Video · Proprietary (undisclosed)

AI video generator built around music-reactive animation and image-to-video transforms.

Freemium· Free trial credits; paid plans typically start around $5-15/momusic-videotext-to-video

Fireworks AI

Fine-tuning · Multi-model (DeepSeek, Qwen, GLM, Kimi, Gemma, Minimax, others)

Production inference and fine-tuning platform for open-source LLMs, tuned for speed and enterprise economics.

Freemium· Free signup credits; pay-per-token from ~$0.14/M in; enterprise reserved capacity on requestllm-fine-tuningserverless-inference

Open Deep Research

Agents · o3-mini (default), DeepSeek R1, or any OpenAI-compatible model

Minimal open-source deep-research agent that iteratively searches, scrapes, and reasons to produce cited markdown reports.

Free· Free (MIT); bring your own Firecrawl + LLM API keysdeep-researchagent-scaffolding

ElizaOS

Agents · Multi-model (BYO via plugins)

Open-source agentic OS for building and orchestrating multi-agent swarms across Discord, Telegram, X, and onchain.

Free· Free, open-source (self-hosted); bring your own model API keysmulti-agent-swarmssocial-bots