Head-to-head
ChatGPT vs Glean
ChatGPT uniquely has 13 features · Glean uniquely has 8 features.
The verdict
ChatGPT or Glean?
Section 01
Pricing, plan by plan
Every plan each vendor publishes, monthly and yearly where both are offered.
ChatGPT
Go
$8/mo
Best for longer conversations; more messages, uploads, image creation, longer memory
Plus
$20/mo
Best for advanced work and productivity; GPT-5.6, expanded everything, projects, scheduled tasks
Pro
$100/mo
Best for research and coding; 5x or 20x more usage, GPT-5.6 Sol Pro, maximum Codex and deep research
Business
$20/user/mo · $20/user/mo (billed annually; $25 billed monthly)
Secure workspace for teams; ChatGPT Work, Codex, SAML SSO, no training on business data
Enterprise
Custom
Enterprise-grade AI, security, support; SCIM, EKM, data residency, 24/7 priority support, volume discounts
Glean
Glean does not publish a plan list we could read.
Section 02
Pros and cons
From each tool's full review, written from the same checked facts.
ChatGPT
Pros
- The free tier is genuinely usable, offering access to GPT-4o mini by default and limited GPT-4o access when capacity allows.
- ChatGPT handles a wide range of modalities including text, voice, images, file uploads, web browsing, code execution, and image generation via DALL·E 3.
- Custom GPTs allow users to build tailored assistants with specific instructions, knowledge bases, and external API connections through GPT Actions.
- With 500 million weekly active users, the platform benefits from massive infrastructure investment and continuous prioritization by OpenAI.
- The tool effectively replaces significant chunks of daily work involving writing, research, and problem-solving for both individuals and teams.
- Multiple advanced models including GPT-4o, o1, o3, and o4-mini provide tiered capability options for different use cases and budgets.
- The platform has evolved rapidly since its late 2022 launch, consistently adding features that make it more capable than most users fully utilize.
Cons
- The model selection menu is confusing for non-technical users, with insufficient in-interface explanation of when to use which model.
- Advanced models like o1, o3, and o4-mini are locked behind paywalls, requiring higher-tier plans to access the most capable options.
- ChatGPT is a general-purpose tool and cannot replace specialist software like project management platforms or CRM systems.
- Team-level usefulness varies significantly depending on the plan tier and how much users verify outputs before acting on them.
- The product has grown so complex in features that the overall experience feels overloaded, potentially overwhelming new users.
- Outputs require checking before relying on them, meaning the tool adds a verification step that reduces some of its time-saving benefit.
Glean
Pros
- Connects to over 100 enterprise apps and builds a unified knowledge graph that understands company-specific context, not just generic information.
- Permission-aware architecture ensures users only receive answers sourced from content they are already authorized to access.
- Real-world deployments at massive scale — Booking.com (14,000 employees) and Ericsson (20,000 employees) signal proven enterprise reliability.
- Natural language search returns answers with cited sources and full context, reducing time wasted hunting through siloed tools.
- Company-specific knowledge indexing means the AI understands internal project names, terminology, and history that generic LLMs cannot.
- Agentic AI capabilities now allow the tool to execute tasks across connected apps, not just surface information passively.
- Backed by a strong customer list including Zillow and GCash, indicating broad enterprise applicability across industries.
Cons
- Pricing structure is described as patience-testing, suggesting high cost or opaque procurement before you even access the product.
- Built for a very specific buyer profile — enterprises with large headcounts — making it a poor fit for smaller organizations.
- No hands-on trial was available for this review, meaning real-world UX nuances may differ from documented and reported behavior.
- G2 reviews were found to contradict each other, suggesting inconsistent user experiences across different deployments.
- Vendor marketing was noted as overstated relative to actual user reports, raising questions about feature reliability or ease of implementation.
- The shift toward agentic capabilities is recent, meaning that layer of the product is less battle-tested than the core search functionality.
Side by side
| Company | ||
| Founded | 2022 | 2019 |
| HQ | San Francisco, USA | San Francisco, CA, USA |
| AI model | GPT-5.5 Instant (default), GPT-5.6 (Plus and above) | Multi-model (supports 100+ LLMs including GPT-4, Claude, Gemini, and others via Model Hub) |
| User base | 900M+ weekly active users (February 2026) | Millions of enterprise users (customers include Booking.com 14k employees, Ericsson 20k+ employees, Zillow, GCash, TIME) |
| Platforms | Desktop, Web, Mobile | Web, iOS, Android, Chrome Extension, Slack, Microsoft Teams |
| Languages | 50+ | 25+ |
| Pricing | ||
| Pricing model | Freemium | — |
| Free plan | Yes | No |
| Free trial | No | Yes |
| Starting price | $8/mo | — |
| Enterprise | $20/user/mo annually or $25/user/mo monthly (ChatGPT Business, 2-user minimum) | Custom pricing — contact sales |
| Refund policy | Cancellations take effect at end of billing period; refund eligibility depends on purchase channel, timing, and regional law | — |
| All plans | Go — $8/mo Plus — $20/mo Pro — $100/mo Business — $20/user/mo Enterprise — Custom | — |
| Positioning | ||
| Best for | Trying ChatGPT (Free), longer conversations (Go), advanced work and productivity (Plus), research and coding (Pro) | Enterprise teams seeking AI-powered workplace search and knowledge management |
| Differentiator | Tiered access to GPT-5.5 and GPT-5.6 models with advanced reasoning on higher plans; native image generation and data analysis | Trusted answers grounded in company data with turnkey AI ecosystem implementation on one centralized platform |
| Competitors | Google Gemini, Microsoft Copilot, Claude (Anthropic), Perplexity AI, Meta AI | Microsoft Copilot, Notion AI, Guru, Coveo, Elasticsearch, Perplexity for Enterprise, Moveworks |
| Features | ||
| AI Powered Search | — | ✓ |
| Agent/Workflow Capabilities | — | ✓ |
| Codex Access | ✓ | — |
| Custom Gpts | ✓ | — |
| Custom Data Sources | — | ✓ |
| Deep Research | ✓ | — |
| Google Calendar Connector | — | ✓ |
| Hundreds of Direct Connectors | — | ✓ |
| Image Generation | ✓ | — |
| Memory & Context | ✓ | — |
| Memory and Context | ✓ | — |
| Scheduled Tasks | ✓ | — |
| Zapier Integration | — | ✓ |
| AI Assistant | ✓ | ✓ |
| Browser Extension | ✓ | ✓ |
| Calendar Integration | ✕ | — |
| Document Creation | ✓ | ✓ |
| Email Management | ✓ | — |
| Meeting Summary | ✓ | — |
| Mobile App | ✓ | ✓ |
| Note Taking | ✓ | — |
| Offline Mode | ✕ | ✕ |
| Presentation Builder | ✓ | — |
| Project Management | ✕ | ✓ |
| Research Assistant | ✓ | ✓ |
| Spreadsheet AI | ✓ | — |
| Task Automation | ✓ | ✓ |
| Team Collaboration | ✓ | ✓ |
| Integrations | ||
| API Access | ✓ | ✓ |
| Browser Extension | ✓ | ✓ |
| Google Calendar | ✕ | — |
| Google Drive | ✓ | ✓ |
| Key Integrations | OpenAI API, Zapier, DALL·E 3, Bing Search, Wolfram Alpha, code interpreter, custom GPT plugins/Actions, Slack (via third-party) | Slack, Google Drive, Jira, Confluence, SharePoint, GitHub, Salesforce, plus 100+ connectors via Connectors platform |
| Microsoft 365 | ✕ | ✓ |
| Slack Integration | ✓ | ✓ |
| Zapier | ✓ | — |
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