Recommendations
Build an AI agent / assistant
The tools and models best suited to this task, ranked on a transparent weighted score. Adjust the filters to match your skill, budget, and privacy needs.
Skill level
Budget
Output
ChatGPT
OpenAI · Free + paid tiers
Everyday writing, explaining, and brainstorming
Why it fits
Watch out: Can state wrong facts confidently — verify what matters
Starter prompt
Act as a [role]. I need to [goal] for [audience]. Context: [paste details]. Produce [format, length, tone]. If anything is unclear, ask me first.
Anthropic Claude (API)
Anthropic · Pay as you go
Building with long-context, careful models
Why it fits
Watch out: Requires engineering effort
Starter prompt
System: [role + rules] User: <data>[...]</data> Task: [...]. Output: [schema].
All matches, ranked
Compare top picksChatGPT
OpenAI
A versatile general-purpose assistant for writing, analysis, coding, and images. The strongest default when you are not sure which tool to use.
Anthropic Claude (API)
Anthropic
The model layer behind Claude, suited to long-context, document-heavy, and analysis-heavy applications.
OpenAI GPT (API)
OpenAI
The model layer behind ChatGPT, for developers building custom assistants, agents, and AI features.
Zapier AI
Zapier
Connects thousands of apps into automated workflows and lets you build simple AI agents that take action.
Meta Llama
Meta
Open-weight models you can run on your own infrastructure for full control over data and cost.
Mistral
Mistral AI
Efficient open-weight and API models with good multilingual performance and private-deployment options.
Hugging Face
Hugging Face
The hub for open models and datasets, with tools to try, host, and deploy them.
Claude
Anthropic
A careful assistant that excels at long documents, nuanced writing, coding, and reviewing contracts and reports.
Gemini
Google's multimodal assistant, strong for research with search grounding and for users in the Google ecosystem.
Microsoft Copilot
Microsoft
AI woven into Word, Excel, PowerPoint, and Outlook, with enterprise data protection on business plans.
Notion AI
Notion
AI inside the Notion workspace for writing, summarizing, and answering questions across your own pages.
Otter.ai
Otter.ai
Joins meetings to transcribe them live and produce searchable notes, summaries, and action items.
Curated recommendations based on publicly available information and practical usage. Not an exhaustive list of every AI tool.