✓
Tool
Category
Pricing
Free?
Updated
Vertex AI Reasoning Engine
AI Agents
Paid
—
Mar 2026
→
Google Cloud managed runtime for deploying and scaling AI agents in production
Best for: Google Cloud
Gemini 3.1 Pro ✓
AI Writing
Freemium
✓
Mar 2026
→
Google's benchmark-leading AI with 77.1% ARC-AGI-2 score and multimodal capabilities.
Best for: ai-assistant
Claude Opus 4.6 ✓
AI Writing
From $20/mo
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Mar 2026
→
Anthropic's flagship AI with 1M context, top-tier reasoning and coding.
Best for: ai-assistant
Perplexity AI ✓
AI Productivity
Freemium
✓
Mar 2026
→
AI search engine with cited sources, multi-step reasoning, and real-time web access.
Best for: search
Claude ✓
AI Writing
Freemium
✓
Mar 2026
→
Anthropic's AI assistant for analysis, writing, and coding with 200K context.
Best for: ai-assistant
ChatGPT ✓
AI Writing
Freemium
✓
Mar 2026
→
OpenAI's conversational AI assistant for writing, coding, analysis, and creative tasks.
Best for: chatbot
Perplexity Computer ✓
AI Productivity
From $20/mo
—
Mar 2026
→
Autonomous agent platform for web browsing and complex task execution.
Best for: autonomous-agent
LlamaIndex ✓
AI Agents
Freemium
✓
Mar 2026
→
Framework for building production RAG systems and data-connected AI agents
Best for: rag
Hugging Face Agents
AI Agents
Free
✓
Mar 2026
→
Agent framework built into Hugging Face Transformers for model-powered tool use
Best for: Hugging Face
Zapier AI Agents
AI Agents
Freemium
✓
Mar 2026
→
Autonomous AI agents on Zapier with access to 6,000+ app integrations
Best for: Zapier