ChatGPT

Strengths

• The Free plan includes unlimited text chats (subject to abuse guardrails) on web, iOS and Android, with limited uploads, image creation, voice, deep research and memory.
• Plus adds advanced reasoning models, expanded deep research, projects, scheduled tasks, custom GPTs and expanded Codex usage.
• Business and Enterprise add SAML SSO, MFA, central billing and administration, usage analytics, and no training on business data by default. Enterprise adds SCIM, role-based access controls, key management and data residency in ten regions.
• Integrations: Business plans list connections to Google Workspace, Slack, GitHub and Microsoft 365, and the feature table lists Excel, Word, PowerPoint and Google Sheets extensions.

Limitations

• Paying users frequently hit usage caps/message limits faster than expected, sometimes within an hour
• Occasionally gets simple facts wrong or hallucinates details, requiring careful fact-checking
• Loses track of context in longer conversations, leading to less coherent responses
• GPT-5 perceived as a downgrade: shorter replies, less personality, more restrictive usage
• Sometimes gives outdated or overly general information, especially for specific coding problems
• Reviewers note it's not as good as Claude at writing code
• Some users report functionality got worse after paying for a subscription