We track and rank the best AI research agents built for B2B businesses. Every agent below is evaluated on pricing, deployment complexity, integrations, and capability depth — so you can choose the right tool to conduct deep research, synthesise data, and accelerate decision-making in B2B.
15 agents indexed· Updated July 2026
Google agentic AI research feature that autonomously browses the web, synthesizes findings, and generates cited reports. Available free on every plan; higher usage limits via Google AI Pro at $19.99/mo.
Google's flagship conversational AI with Gemini 3.5 Flash, 3.1 Pro, Deep Research, Deep Think, and MCP. Free tier; AI Plus $5/mo, Pro $20/mo, Ultra from $100/mo.
Perplexity AI
AI-powered answer engine with real-time web access and inline citations. Free, Pro $17/mo, Max $167/mo, Enterprise Pro $34/seat. Computer agent on all paid plans. Comet browser, Sonar API.
OpenAI
OpenAI's general-purpose AI platform with GPT-5.6, ChatGPT Agent, Tasks, and Deep Research. Free; Go $8, Plus $20, Pro from $100/month. 500M+ weekly users.
Consensus
AI-powered academic search engine with Consensus Meter and Deep Search across 250M+ peer-reviewed papers. MCP server for Claude and ChatGPT. Free; Pro $12/mo; Deep $45/mo.
Google source-grounded AI research assistant. Free up to 50 sources per notebook; paid tiers from $7.99/mo via Google AI subscriptions. Audio Overviews, mind maps, and citation-backed Q&A on uploaded sources only.
Butler Labs, Inc.
Plaintiff-firm legal AI operating system (EveOS) from Butler Labs covering intake through settlement. AI Auditor, Agents, Comms Agent. $163M raised, $1B+ valuation. G2 4.9/5. Custom pricing.
Anthropic
Anthropic conversational AI powered by Fable 5, Opus 4.8, Sonnet 5, Sonnet 4.6, and Haiku 4.5. Research, Code, Cowork, Design, Managed Agents, MCP Connectors, Office add-ins. Free; Pro $17/mo annual.
Bruin Data
AI data analyst agent for Slack, Teams, and 1000s of sources that refuses stale data and builds dashboards on demand. Free tier: $100 credits plus 50 AI tasks. SOC 2 Type II, MCP-compatible.
Spellbook
AI contract review and drafting platform used by 4,500+ legal teams in 80+ countries. Intake from Slack, Salesforce, and email. SOC 2 Type II + HIPAA + GDPR. 7-day free trial.
OpenAI
OpenAI's autonomous research agent that browses dozens of sources and produces cited reports in 5 to 30 minutes. GPT-5.6 models with MCP client connectivity. Free tier; Plus from $20/mo.
You.com
Web search APIs for AI agents with Search ($5/1K calls), Contents ($1/1K pages), Research, and Finance Research APIs. MCP server. SOC 2 certified. $100 free credit.
Harvey
Enterprise legal AI platform with Harvey Agents executing end-to-end legal work. $1.22B raised, $11B valuation, $190M ARR. 142K+ professionals. SOC 2 Type II + ISO 27001.
Thomson Reuters
Thomson Reuters legal AI combining agentic Deep Research with Westlaw-grounded content. G2 4.8/5 (78 reviews). 1M+ users including majority of Am Law 100. SOC 2 Type II.
LexisNexis
LexisNexis legal AI platform combining Protégé agentic workflows with 161M+ authoritative legal documents and Shepard Citations. Am Law 50 firms, Berkeley, Notre Dame. Custom pricing.
Based on our index, the top AI research agents for B2B are Gemini Deep Research, Gemini, Perplexity AI. These are ranked by rating and capability depth across 15 indexed agents.
When evaluating AI research agents for B2B, consider pricing model (free vs subscription vs usage-based), deployment difficulty, integrations with your existing stack, and whether the agent specialises in B2B workflows. Every agent on this page includes structured data on all of these dimensions.
Yes — several AI research agents offer free or freemium plans. Use the filter pills above to narrow by pricing, or browse the full AI Research Agents index.