Tool Category
Best AI / LLM Tools
33 tools compared on real pricing, genuine strengths, and the limitations that only show up after you buy.
The short answer
We track 33 AI / LLM tools, 18 of which have a free or freemium tier you can evaluate without a sales call. Our picks are Claude API, Cohere and Glean. Each entry below lists real pricing, what it is genuinely good at, and the limitations that only show up after you buy.
Pricing at a glance
| Tool | Pricing model | What it costs |
|---|---|---|
| Claude API | paid | Pay-as-you-go. Claude Sonnet roughly $3/1M input tokens. Very competitive pricing. |
| Cohere | paid | Usage-based API pricing. Private and on-prem deployments are quoted for enterprise. |
| Glean | enterprise-quoted | Enterprise pricing, quoted per organization and typically seat-based. |
| Granola | freemium | Free tier includes unlimited meeting notes but retains them for only 30 days. Paid plans unlock full history and team features; specific tier prices are on the pricing page rather than the homepage. |
| LangGraph | freemium | Open-source framework, free to use. Paid tiers apply to the surrounding LangSmith platform, not the framework itself. |
| OpenAI API | paid | Pay-as-you-go. GPT-4o roughly $5/1M input tokens. Very affordable for SMB usage volumes. |
| Perplexity | freemium | Free tier available. Pro $20/month. Enterprise plans available. |
| Spellbook | enterprise-quoted | Not published — 7-day free trial, then per-seat pricing quoted after a demo. Ask about Playbook setup, which is where the value concentrates. |
| AssemblyAI | paid | Pay-as-you-go from $0.12/hour. Committed-use discounts available. |
| Credal AI | enterprise-quoted | Enterprise pricing, quoted per organization. |
| CrewAI | freemium | Open-source framework, free. CrewAI also offers a paid enterprise platform for deployment and management. |
| ElevenLabs | freemium | Free plan available (10,000 chars/month). Paid from $5/month. |
| Fathom | freemium | Free forever with unlimited recordings, transcripts, and AI summaries. Premium $20/mo ($16 annual). Team $19/user/mo ($15 annual). Business $34/user/mo ($25 annual). Enterprise custom. |
| Fireflies.ai | freemium | Free plan with limited credits. Pro from $10/user/month. Business from $19/user/month. |
| Freed | paid | AI Scribe from $39/month per clinician; AI Front Desk from $149/month. Free access offered to residents, students, and trainees. Group plans available. |
| Fyxer AI | enterprise-quoted | Not published on the homepage — free trial with one-click Gmail or Outlook connection, then per-seat pricing. Enterprise arrangements via sales. |
| Gemini | freemium | Free tier via gemini.google.com. Gemini Advanced $19.99/month. API pricing varies. |
| Grammarly | freemium | Free plan available. Premium $12/month. Business from $15/seat/month. |
| Harvey | enterprise-quoted | Not published — enterprise contracts negotiated after a demo. Deployments are typically firm-wide with implementation support, not self-serve seats. |
| Haystack | freemium | Open-source framework is free. The deepset AI Platform is a paid, enterprise-oriented managed offering. |
| Hugging Face | freemium | Free for public use. PRO and Enterprise Hub plans add private hosting, SSO, and audit controls; Inference Endpoints are usage-based. |
| LlamaIndex | freemium | Open-source framework is free. LlamaCloud (managed parsing and indexing) is sold on usage-based paid plans. |
| Microsoft AutoGen | free | Open-source (MIT), free to use. You pay only for the underlying model API calls. |
| Microsoft Copilot | paid | Copilot Pro $20/user/month. Microsoft 365 Copilot $30/user/month (requires M365 license). |
| Microsoft Copilot Studio | enterprise-quoted | Three models: Microsoft 365 Copilot at $30/user/month including a standard agent harness; pre-purchased Copilot Credit Commit Units at up to 20% savings; or pay-as-you-go with no commitment. All metered in Copilot Credits consumed per agent action or response. |
| Notion AI | paid | Notion AI add-on is $8/member/month on top of Notion plan. |
| OpenAI AgentKit | freemium | No separate platform fee. Agent Builder design is free; you pay standard OpenAI API model and storage rates for execution. As a reference point, GPT-5.2 runs roughly $1.75 per million input tokens and $14 per million output tokens, with GPT-5 mini at about $0.25 per million input tokens. |
| Otter.ai | freemium | Free plan with 300 minutes/month. Pro from $8.33/user/month. Business from $20/user/month. |
| Pinecone | freemium | Free starter tier. Usage-based Standard and Enterprise plans scale with stored vectors and queries. |
| Salesforce Agentforce | enterprise-quoted | Flex Credits: $500 per 100,000 credits. Standard action = 20 credits ($0.10); voice action = 30 credits ($0.15). One action covers up to 10,000 tokens; larger actions bill as multiple. Alternative $2/conversation model. Salesforce Foundations includes 200,000 Flex Credits free on Enterprise Edition and above. |
| Semantic Kernel | free | Open-source (MIT), free. Costs come from the model APIs you call. |
| Temporal | freemium | Open-source and self-hostable for free. Temporal Cloud is a usage-based managed service. |
| Writer | enterprise-quoted | Enterprise pricing, quoted per organization. |
All 33 AI / LLM tools
Claude API
AI / LLMAnthropic's AI models via API — excel at long documents, careful reasoning, and following complex instructions.
Good for: Law Firms, Agencies, Accountants...
View tool
Cohere
AI / LLMAn enterprise-focused foundation model provider, with strong retrieval, reranking, and multilingual models plus private deployment options.
Good for: Enterprises building RAG and semantic search, Regulated industries needing private deployment, Multilingual and global organizations
View tool
Glean
AI / LLMAn enterprise AI platform that connects to company apps to power permission-aware search, an assistant, and agents over internal knowledge.
Good for: Large enterprises with knowledge spread across many tools, Teams deploying an internal AI assistant, Organizations that need permission-aware AI search
View tool
Granola
AI / LLMAn AI notepad that captures meeting notes from your computer audio without sending a bot into the call.
Good for: Founders and executives in back-to-back meetings, Consultants and client-facing professionals, Sales teams who do not want a bot in the room...
View tool
LangGraph
AI / LLMA low-level orchestration framework for building stateful, multi-step agent workflows with explicit control over state, branching, and human-in-the-loop steps.
Good for: Engineering teams building multi-step agents, Enterprise platform teams, Workflows needing human-in-the-loop control
View tool
OpenAI API
AI / LLMThe most capable AI models available via API — power your business automations with GPT-4.
Good for: Any SMB wanting AI features, Law Firms, Recruiters...
View tool
Perplexity
AI / LLMAI-powered answer engine that searches the live web and cites its sources — the ChatGPT alternative for research.
Good for: Any SMB, Law Firms, Agencies...
View tool
Spellbook
AI / LLMAI contract review and drafting that lives inside Microsoft Word, where lawyers already work.
Good for: Small and mid-size law firms doing transactional work, Lean in-house legal teams, Corporate counsel handling high contract volume...
View tool
AssemblyAI
AI / LLMDeveloper-focused speech-to-text API with speaker diarization, sentiment analysis, and LLM-powered features.
Good for: Developers, Agencies Building Products, SaaS...
View tool
Credal AI
AI / LLMAn enterprise AI governance and guardrails platform — permission-aware data access, policy enforcement, and audit logging for internal AI applications.
Good for: Enterprises deploying internal AI assistants, Regulated industries with strict data controls, Security and governance teams
View tool
CrewAI
AI / LLMA framework for orchestrating role-based multi-agent teams, where specialized agents collaborate on a task under a defined process.
Good for: Teams prototyping multi-agent workflows, Content and research automation, Engineering teams exploring agent collaboration
View tool
ElevenLabs
AI / LLMBest-in-class AI voice synthesis — used to create branded voice agents and audio content.
Good for: Any business with phone presence, Agencies building AI products
View tool
Fathom
AI / LLMAn AI meeting notetaker with a genuinely usable free tier — unlimited recordings, transcripts, and AI summaries at $0.
Good for: Sales teams that need calls synced to the CRM, Customer success and account management, Small teams adopting meeting capture for the first time...
View tool
Fireflies.ai
AI / LLMAI meeting assistant that records, transcribes, and summarizes your meetings automatically.
Good for: Any SMB with regular meetings, Sales Teams, Agencies...
View tool
Freed
AI / LLMAn AI medical scribe for independent clinics that turns the patient conversation into a structured, EHR-ready note.
Good for: Independent and community-based clinics, Solo and small-group practitioners, Behavioral health and psychiatry practices...
View tool
Fyxer AI
AI / LLMAn AI executive assistant that organizes your inbox and drafts replies in your own voice, learned from your sent mail.
Good for: Real estate agents and brokerages, Consultants and professional services partners, Accountants and bookkeepers with heavy client email...
View tool
Gemini
AI / LLMGoogle's flagship AI — integrated across Gmail, Docs, Sheets, and available via API with multimodal capabilities.
Good for: Any SMB on Google Workspace, Agencies, Professional Services
View tool
Grammarly
AI / LLMAI writing assistant for grammar, clarity, tone, and generative drafts across every app you write in.
Good for: Any SMB, Law Firms, Agencies...
View tool
Harvey
AI / LLMThe enterprise legal AI platform — agents, document vaults, and contract intelligence used by 75+ of the AmLaw 100.
Good for: AmLaw 100 and large regional law firms, Enterprise in-house legal departments, Professional services firms with heavy document review...
View tool
Haystack
AI / LLMAn open-source framework from deepset for building production LLM applications — RAG, search, and agents — built around composable pipelines.
Good for: Teams building production RAG and search, Engineering orgs that want inspectable pipelines, Enterprises evaluating managed LLM platforms
View tool
Hugging Face
AI / LLMThe hub for open machine-learning models, datasets, and the libraries to run them — plus enterprise features for private, governed use.
Good for: Teams using or fine-tuning open-weight models, Enterprises wanting private model governance, ML platform teams
View tool
LlamaIndex
AI / LLMA data framework for connecting LLMs to private and enterprise data — ingestion, indexing, retrieval, and agent workflows over your own content.
Good for: Teams building RAG over internal data, Engineering orgs standardizing ingestion and retrieval, Enterprises with large, messy document sets
View tool
Microsoft AutoGen
AI / LLMAn open-source framework from Microsoft Research for building multi-agent applications, where agents converse to solve tasks together.
Good for: Engineering teams prototyping multi-agent systems, Research and innovation groups, Teams already in the Microsoft ecosystem
View tool
Microsoft Copilot
AI / LLMMicrosoft's AI assistant embedded across Windows, Office, Edge, and Microsoft 365 business apps.
Good for: Any SMB on Microsoft 365, Professional Services, Financial Services...
View tool
Microsoft Copilot Studio
AI / LLMBuild agents in natural language or a visual designer, grounded in Microsoft 365 data and deployed into Teams, SharePoint, and the web.
Good for: Enterprises standardized on Microsoft 365, IT organizations that need central agent governance, Business units building internal agents without engineering...
View tool
Notion AI
AI / LLMAI built into Notion for writing SOPs, summarizing notes, and managing internal knowledge.
Good for: Any SMB using Notion, Law Firms, Agencies...
View tool
OpenAI AgentKit
AI / LLMOpenAI first-party agent toolkit — a visual Agent Builder, embeddable ChatKit UI, a connector registry, and evals, billed at plain API rates.
Good for: Product teams embedding agents into their own software, Engineering teams already building on the OpenAI API, Startups that want agent scaffolding without a platform fee...
View tool
Otter.ai
AI / LLMReal-time meeting transcription with AI-powered notes, summaries, and action item extraction.
Good for: Any SMB, Law Firms, Consultants...
View tool
Pinecone
AI / LLMA managed vector database for production retrieval — powering RAG and semantic search at enterprise scale without running your own vector infrastructure.
Good for: Teams building production RAG systems, Enterprises with large-scale semantic search, Engineering orgs avoiding self-managed vector infra
View tool
Salesforce Agentforce
AI / LLMSalesforce native agent platform, priced per action via Flex Credits — the default choice if your system of record is already Salesforce.
Good for: Enterprises already standardized on Salesforce, Service Cloud organizations automating case deflection, Sales orgs adding agent assist to existing pipelines...
View tool
Semantic Kernel
AI / LLMAn open-source SDK from Microsoft for integrating LLMs into applications, with a focus on enterprise-grade orchestration in C#, Python, and Java.
Good for: .NET and Java enterprise development teams, Orgs embedding AI into existing applications, Microsoft-ecosystem shops
View tool
Temporal
AI / LLMA durable execution platform that makes long-running, failure-prone workflows — including AI agents — reliable by default.
Good for: Teams running agents in production, Platform teams building reliable workflow infrastructure, Enterprises with long-running, multi-step AI processes
View tool
Writer
AI / LLMA full-stack generative AI platform for enterprises, combining in-house models, a no-code agent builder, and governance controls.
Good for: Large enterprises standardizing generative AI, Content, marketing, and support organizations, Regulated teams needing brand and compliance controls
View tool
Get one new AI workflow every week
Practical playbooks, prompts, and tool stacks — for the SMB operators and enterprise teams actually shipping AI.
Frequently asked
- What are the best ai / llm tools?
- We track 33 AI / LLM tools, 18 of which have a free or freemium tier you can evaluate without a sales call. Our picks are Claude API, Cohere and Glean. Each entry below lists real pricing, what it is genuinely good at, and the limitations that only show up after you buy.
- Are there free AI / LLM tools?
- Yes — 18 of the 33 tools we track in this category offer a free or freemium tier: Granola, LangGraph, Perplexity, CrewAI, ElevenLabs, Fathom, and others. Free tiers vary widely in usefulness, so check the individual entry for what the tier actually includes.
- How much do AI / LLM tools cost?
- Pricing varies by model — per seat, per action, per credit, and per outcome are all common in this category. As one reference point, Claude API: Pay-as-you-go. Claude Sonnet roughly $3/1M input tokens. Very competitive pricing.
Other tool categories
Ready to implement AI in your business?
Free implementation guides for SMB operators and enterprise teams — workflows, prompts, governance, and tool stacks built to ship.