# ChatGPT, Grammarly vs Blackbox Comparison | | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Star Rating** | 4.6 out of 5 | 4.7 out of 5 | 4.5 out of 5 | | **Total Reviews** | 2,554 | 13,720 | 14 | | **Largest Market Segment** | Small-Business (58.3% of reviews) | Small-Business (51.8% of reviews) | Small-Business (57.1% of reviews) | | **Entry Level Price** | No pricing available | No pricing available | No pricing available | --- ## Top Pros & Cons ### ChatGPT Pros: - Ease of Use (796 reviews) - Useful (749 reviews) Cons: - AI Limitations (364 reviews) - Context Understanding (336 reviews) ### Grammarly Pros: - Writing Improvement (1495 reviews) - Ease of Use (1195 reviews) Cons: - Incorrect Corrections (474 reviews) - Inaccuracy (368 reviews) ### Blackbox Pros: - AI Advancements (1 reviews) - Coding Assistance (1 reviews) Cons: - Context Understanding (1 reviews) - Poor Suggestions (1 reviews) --- ## Ratings Comparison | Rating | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Meets Requirements** | 9.0 (2083 reviews) | 9.2 (10416 reviews) | 9.4 (13 reviews) | | **Ease of Use** | 9.5 (2166 reviews) | 9.4 (10688 reviews) | 9.4 (13 reviews) | | **Ease of Setup** | 9.5 (1698 reviews) | 9.4 (4582 reviews) | 9.4 (8 reviews) | | **Ease of Admin** | 9.3 (201 reviews) | 9.3 (2706 reviews) | Not enough data | | **Quality of Support** | 8.4 (1746 reviews) | 9.0 (6769 reviews) | 8.6 (12 reviews) | | **Has the product been a good partner in doing business?** | 9.2 (200 reviews) | 9.4 (2663 reviews) | Not enough data | | **Product Direction (% positive)** | 9.1 (2009 reviews) | 9.4 (10692 reviews) | 10.0 (11 reviews) | --- ## Pricing ### ChatGPT #### Entry-Level Pricing No pricing available #### Free Trial No information available ### Grammarly #### Entry-Level Pricing No pricing available #### Free Trial Yes ### Blackbox #### Entry-Level Pricing No pricing available #### Free Trial No information available --- ## Features Comparison By Category ### AI Chatbots | Product | Score | Reviews | |---|---|---| | **ChatGPT** | 8.6/10 | 1563 | | **Grammarly** | N/A | N/A | | **Blackbox** | N/A | N/A | #### Core Conversational Capabilities - AI Chatbots | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Controlled LLM Response Generation** | 9.1 (189 reviews) | Not enough data | Not enough data | | **Context Maintenance Within Sessions** | 8.4 (271 reviews) | Not enough data | Not enough data | | **Natural Language Understanding & Intent Inference** | 9.0 (257 reviews) | Not enough data | Not enough data | #### Data | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Reliability** | 8.2 (1185 reviews) | Not enough data | Not enough data | | **Data Security** | 8.1 (739 reviews) | Not enough data | Not enough data | #### Interaction | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Complex Query Handling** | 8.7 (1009 reviews) | Not enough data | Not enough data | | **Natural Conversation** | 8.9 (946 reviews) | Not enough data | Not enough data | | **Understanding** | 8.9 (941 reviews) | Not enough data | Not enough data | | **Context Management** | 8.5 (871 reviews) | Not enough data | Not enough data | | **Customizability** | 8.6 (813 reviews) | Not enough data | Not enough data | #### Task & Flow Management - AI Chatbots | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Scripted Dialogue & Decision Tree Support** | 8.8 (144 reviews) | Not enough data | Not enough data | | **Fallback Responses for Unknown Queries** | 8.3 (134 reviews) | Not enough data | Not enough data | #### Learning | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **User Interaction Learning** | 8.9 (737 reviews) | Not enough data | Not enough data | | **Error Learning** | 8.1 (721 reviews) | Not enough data | Not enough data | #### Deployment & Embedding - AI Chatbots | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **API Access for Business System Integration** | 8.8 (138 reviews) | Not enough data | Not enough data | | **Web Widget & SDK Embedding** | 8.4 (107 reviews) | Not enough data | Not enough data | #### Content Generation | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Creativity** | 8.9 (961 reviews) | Not enough data | Not enough data | | **Content Accuracy** | 7.7 (1072 reviews) | Not enough data | Not enough data | #### Admin & Configuration - AI Chatbots | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **No-Code Conversation Design** | 8.8 (127 reviews) | Not enough data | Not enough data | #### System | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **API Flexibility** | 8.5 (669 reviews) | Not enough data | Not enough data | | **Update Frequency and Utility** | 8.5 (713 reviews) | Not enough data | Not enough data | | **Cross-Platform Compatibility ** | 8.6 (684 reviews) | Not enough data | Not enough data | | **Software Integration** | 8.4 (740 reviews) | Not enough data | Not enough data | #### Agentic AI - AI Chatbots | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Autonomous Task Execution** | 8.3 (289 reviews) | Not enough data | Not enough data | | **Multi-step Planning** | 8.8 (351 reviews) | Not enough data | Not enough data | | **Cross-system Integration** | 8.4 (274 reviews) | Not enough data | Not enough data | | **Adaptive Learning** | 8.6 (284 reviews) | Not enough data | Not enough data | | **Natural Language Interaction** | 8.7 (381 reviews) | Not enough data | Not enough data | | **Proactive Assistance** | 8.5 (286 reviews) | Not enough data | Not enough data | | **Decision Making** | 8.6 (297 reviews) | Not enough data | Not enough data | #### Monitoring & Improvement - AI Chatbots | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Feedback-Driven Response Optimization** | 8.7 (128 reviews) | Not enough data | Not enough data | #### Reliability & Safety - AI Chatbots | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Guardrails & Content Controls** | 8.3 (125 reviews) | Not enough data | Not enough data | ### AI Writing Assistant | Product | Score | Reviews | |---|---|---| | **ChatGPT** | N/A | N/A | | **Grammarly** | 8.5/10 | 6911 | | **Blackbox** | N/A | N/A | #### Grammar | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Grammar Check** | Not enough data | 9.6 (5502 reviews) | Not enough data | | **Tone Check** | Not enough data | 9.0 (5241 reviews) | Not enough data | | **Sentence Formatting** | Not enough data | 9.2 (5291 reviews) | Not enough data | #### Formatting | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Plagiarism Check** | Not enough data | 8.4 (4480 reviews) | Not enough data | | **Style Editor** | Not enough data | 8.7 (4792 reviews) | Not enough data | | **Citation Finder** | Not enough data | 7.8 (4110 reviews) | Not enough data | #### Content | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Idea Recommendation** | Not enough data | 8.5 (4564 reviews) | Not enough data | | **Content Generation** | Not enough data | 8.3 (4325 reviews) | Not enough data | | **Form Generation** | Not enough data | 7.9 (4035 reviews) | Not enough data | #### Product Type | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Standalone Application** | Not enough data | 8.5 (4370 reviews) | Not enough data | | **Plugin** | Not enough data | 8.7 (4602 reviews) | Not enough data | #### Generative AI | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **AI Text Generation** | Not enough data | 8.1 (3118 reviews) | Not enough data | | **AI Text Summarization** | Not enough data | 8.1 (3081 reviews) | Not enough data | ### Plagiarism Checker | Product | Score | Reviews | |---|---|---| | **ChatGPT** | N/A | N/A | | **Grammarly** | 8.4/10 | 1939 | | **Blackbox** | N/A | N/A | #### Database Type | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Custom Database** | Not enough data | 8.2 (1228 reviews) | Not enough data | | **Internet Content** | Not enough data | 8.6 (1299 reviews) | Not enough data | | **Proprietary Database** | Not enough data | 8.2 (1206 reviews) | Not enough data | | **Academic Databases** | Not enough data | 8.2 (1224 reviews) | Not enough data | #### Content Features | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Private Cloud** | Not enough data | 8.0 (1199 reviews) | Not enough data | | **CMS Integrations** | Not enough data | 8.0 (1179 reviews) | Not enough data | | **Itemized Reporting** | Not enough data | 8.1 (1197 reviews) | Not enough data | | **Real-Time Evaluation** | Not enough data | 8.8 (1317 reviews) | Not enough data | #### Software Type | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Browser Application** | Not enough data | 8.9 (1366 reviews) | Not enough data | | **Desktop Application** | Not enough data | 8.8 (1342 reviews) | Not enough data | ### Proofreading | Product | Score | Reviews | |---|---|---| | **ChatGPT** | N/A | N/A | | **Grammarly** | 8.4/10 | 9054 | | **Blackbox** | N/A | N/A | #### Grammar Tools | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Vocabulary Recommendations** | Not enough data | 8.9 (7592 reviews) | Not enough data | | **Sentence Rephrasing** | Not enough data | 8.8 (7687 reviews) | Not enough data | | **Dictionary** | Not enough data | 8.8 (7285 reviews) | Not enough data | #### Writing Support | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Text Reader** | Not enough data | 8.2 (6599 reviews) | Not enough data | | **Machine Translation** | Not enough data | 7.7 (5931 reviews) | Not enough data | | **Custom Style Guides** | Not enough data | 8.2 (6426 reviews) | Not enough data | | **Reporting** | Not enough data | 8.2 (6239 reviews) | Not enough data | #### Software Availability | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Word Processor** | Not enough data | 8.8 (6900 reviews) | Not enough data | | **Integrations** | Not enough data | 8.5 (6767 reviews) | Not enough data | | **Browser Plug-In** | Not enough data | 8.8 (7196 reviews) | Not enough data | #### Generative AI | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **AI Text Generation** | Not enough data | 7.8 (4992 reviews) | Not enough data | | **AI Text-to-Speech** | Not enough data | Feature Not Available | Not enough data | | **AI Text Summarization** | Not enough data | 7.8 (4948 reviews) | Not enough data | ### AI Code Generation | Product | Score | Reviews | |---|---|---| | **ChatGPT** | 8.8/10 | 437 | | **Grammarly** | N/A | N/A | | **Blackbox** | 8.3/10 | 13 | #### Functionality | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Accuracy** | 8.5 (365 reviews) | Not enough data | 8.5 (13 reviews) | | **Input processing** | 8.9 (347 reviews) | Not enough data | 8.8 (13 reviews) | | **Interface** | 9.3 (357 reviews) | Not enough data | 9.1 (13 reviews) | | **Code quality** | 8.7 (349 reviews) | Not enough data | 8.1 (12 reviews) | #### Support | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Community** | 8.4 (316 reviews) | Not enough data | 7.6 (12 reviews) | | **Update schedule** | 8.6 (315 reviews) | Not enough data | 7.8 (13 reviews) | | **Documentation** | 8.7 (325 reviews) | Not enough data | 8.5 (13 reviews) | #### Agentic AI - AI Code Generation | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Cross-system Integration** | 8.5 (92 reviews) | Not enough data | Not enough data | | **Adaptive Learning** | 8.9 (96 reviews) | Not enough data | Not enough data | | **Natural Language Interaction** | 9.1 (101 reviews) | Not enough data | Not enough data | | **Proactive Assistance** | 8.7 (90 reviews) | Not enough data | Not enough data | | **Decision Making** | 8.8 (101 reviews) | Not enough data | Not enough data | ### Large Language Models (LLMs) | Product | Score | Reviews | |---|---|---| | **ChatGPT** | 8.2/10 | 329 | | **Grammarly** | N/A | N/A | | **Blackbox** | N/A | N/A | #### Performance | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Quality of Responses** | 8.7 (284 reviews) | Not enough data | Not enough data | | **Contextual Understanding** | 8.6 (265 reviews) | Not enough data | Not enough data | | **Efficiency in Multi-turn Conversations** | 8.1 (247 reviews) | Not enough data | Not enough data | | **Response Generation Speed** | 8.7 (268 reviews) | Not enough data | Not enough data | | **Domain Adaptability** | 8.6 (250 reviews) | Not enough data | Not enough data | #### Usability | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Integration Ease** | 8.7 (233 reviews) | Not enough data | Not enough data | | **API User-Friendliness** | 8.4 (220 reviews) | Not enough data | Not enough data | | **Customization Flexibility** | 8.4 (234 reviews) | Not enough data | Not enough data | | **Quality of Documentation** | 8.3 (236 reviews) | Not enough data | Not enough data | | **Support Effectiveness** | 8.0 (228 reviews) | Not enough data | Not enough data | #### Ethics & Compliance | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Bias Mitigation** | 7.7 (217 reviews) | Not enough data | Not enough data | | **Data Privacy Protection** | 7.4 (225 reviews) | Not enough data | Not enough data | | **Content Moderation** | 8.3 (229 reviews) | Not enough data | Not enough data | | **Transparency and Explainability** | 8.2 (223 reviews) | Not enough data | Not enough data | | **Ethical Guidelines Adherence** | 8.2 (220 reviews) | Not enough data | Not enough data | #### Generative AI - Large Language Models (LLMs) | Feature | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Text Generation** | 9.5 (102 reviews) | Not enough data | Not enough data | | **Text-to-Speech** | 8.7 (56 reviews) | Not enough data | Not enough data | | **Text-to-Image** | 8.2 (77 reviews) | Not enough data | Not enough data | | **Text-to-Music** | 6.8 (48 reviews) | Not enough data | Not enough data | | **Text-to-3D** | 6.8 (47 reviews) | Not enough data | Not enough data | | **Text-to-Video** | 6.4 (50 reviews) | Not enough data | Not enough data | | **Text Summarization** | 9.3 (80 reviews) | Not enough data | Not enough data | | **Image-to-Text** | 9.0 (65 reviews) | Not enough data | Not enough data | --- ## Categories **Unique to ChatGPT (3):** [AI Code Generation Software](https://www.g2.com/categories/ai-code-generation), [AI Chatbots Software](https://www.g2.com/categories/ai-chatbots), [Large Language Models (LLMs) Software](https://www.g2.com/categories/large-language-models-llms) **Unique to Grammarly (3):** [AI Writing Assistants](https://www.g2.com/categories/ai-writing-assistant), [Plagiarism Checker Software](https://www.g2.com/categories/plagiarism-checker), [Proofreading Software](https://www.g2.com/categories/proofreading) **Unique to Blackbox (1):** [AI Code Generation Software](https://www.g2.com/categories/ai-code-generation) --- ## Reviewer Demographics ### By Company Size | Segment | ChatGPT | Grammarly | Blackbox | |---|---|---|---| | **Small-Business** | 58.3% | 51.8% | 57.1% | | **Mid-Market** | 28.9% | 35.8% | 21.4% | | **Enterprise** | 12.8% | 12.3% | 21.4% | ### By Industry #### ChatGPT - **Information Technology and Services:** 14.4% - **Computer Software:** 13.6% - **Marketing and Advertising:** 8.5% - **Education Management:** 3.4% - **Consulting:** 3.3% - **Higher Education:** 3.3% - **Financial Services:** 3.2% - **Computer & Network Security:** 2.4% - **Staffing and Recruiting:** 1.9% - **Accounting:** 1.9% - **Other:** 44.1% #### Grammarly - **Non-Profit Organization Management:** 11.9% - **Marketing and Advertising:** 8.0% - **Computer Software:** 7.7% - **Information Technology and Services:** 7.4% - **Higher Education:** 4.6% - **Education Management:** 3.9% - **Financial Services:** 3.1% - **Primary/Secondary Education:** 2.6% - **Consulting:** 2.4% - **Hospital & Health Care:** 2.3% - **Other:** 46.1% #### Blackbox - **Computer Software:** 35.7% - **Information Technology and Services:** 14.3% - **E-Learning:** 14.3% - **Retail:** 7.1% - **Insurance:** 7.1% - **Human Resources:** 7.1% - **Electrical/Electronic Manufacturing:** 7.1% - **Accounting:** 7.1% --- ## Alternatives ### Alternatives to ChatGPT - [Gemini](https://www.g2.com/products/google-gemini/reviews) — 4.4/5 stars (472 reviews) - [TESS AI](https://www.g2.com/products/tess-ai/reviews) — 4.7/5 stars (492 reviews) - [GitHub Copilot](https://www.g2.com/products/github-copilot/reviews) — 4.5/5 stars (301 reviews) - [Perplexity](https://www.g2.com/products/perplexity/reviews) — 4.5/5 stars (297 reviews) - [Claude](https://www.g2.com/products/claude-2025-12-11/reviews) — 4.6/5 stars (314 reviews) - [Replit](https://www.g2.com/products/replit/reviews) — 4.5/5 stars (355 reviews) - [Simplified](https://www.g2.com/products/simplified/reviews) — 4.6/5 stars (5008 reviews) - [1min.AI](https://www.g2.com/products/1min-ai/reviews) — 4.5/5 stars (889 reviews) - [Tabnine](https://www.g2.com/products/tabnine/reviews) — 4.1/5 stars (48 reviews) - [Notion](https://www.g2.com/products/notion/reviews) — 4.6/5 stars (11898 reviews) ### Alternatives to Grammarly - [ProWritingAid](https://www.g2.com/products/prowritingaid/reviews) — 4.5/5 stars (48 reviews) - [Writesonic](https://www.g2.com/products/writesonic/reviews) — 4.7/5 stars (2112 reviews) - [Jasper](https://www.g2.com/products/jasper-ai/reviews) — 4.7/5 stars (1270 reviews) - [Rytr](https://www.g2.com/products/rytr/reviews) — 4.7/5 stars (819 reviews) - [Semrush](https://www.g2.com/products/semrush/reviews) — 4.5/5 stars (3385 reviews) - [Pepper](https://www.g2.com/products/pepper-content-pepper/reviews) — 4.6/5 stars (496 reviews) - [Anyword](https://www.g2.com/products/anyword/reviews) — 4.8/5 stars (1226 reviews) - [Wordtune](https://www.g2.com/products/ai21labs-wordtune/reviews) — 4.6/5 stars (198 reviews) - [Simplified](https://www.g2.com/products/simplified/reviews) — 4.6/5 stars (5008 reviews) - [Notion](https://www.g2.com/products/notion/reviews) — 4.6/5 stars (11898 reviews) ### Alternatives to Blackbox - [GitHub Copilot](https://www.g2.com/products/github-copilot/reviews) — 4.5/5 stars (301 reviews) - [Gemini](https://www.g2.com/products/google-gemini/reviews) — 4.4/5 stars (472 reviews) - [Tabnine](https://www.g2.com/products/tabnine/reviews) — 4.1/5 stars (48 reviews) - [Replit](https://www.g2.com/products/replit/reviews) — 4.5/5 stars (355 reviews) - [TESS AI](https://www.g2.com/products/tess-ai/reviews) — 4.7/5 stars (492 reviews) - [GitLab](https://www.g2.com/products/gitlab/reviews) — 4.5/5 stars (892 reviews) - [Claude](https://www.g2.com/products/claude-2025-12-11/reviews) — 4.6/5 stars (314 reviews) - [Windsurf](https://www.g2.com/products/exafunction-windsurf/reviews) — 4.2/5 stars (33 reviews) - [Ask Codi](https://www.g2.com/products/ask-codi/reviews) — 4.8/5 stars (100 reviews) - [Cursor](https://www.g2.com/products/cursor/reviews) — 4.6/5 stars (135 reviews) --- ## Top Discussions ### ChatGPT - Title: [🧠 Is AI Weakening Human Critical Thinking? Let’s Talk.](https://www.g2.com/discussions/is-ai-weakening-human-critical-thinking-let-s-talk) — 8 comments, 4 upvotes > **Top comment:** "Yes, as long as the user is not evaluating and sutdying the output, AI is weaking the critical thinking." - Title: [GPT-4.5 What is your opinion?](https://www.g2.com/discussions/gpt-4-5-what-is-your-opinion) — 6 comments, 2 upvotes > **Top comment:** "I love using ChatGPT. I has help me lots if times to solve problems. " - Title: [How do you keep ChatGPT neutral and useful for academic research and analysis?](https://www.g2.com/discussions/how-do-you-keep-chatgpt-neutral-and-useful-for-academic-research-and-analysis) — 1 comment, 1 upvote > **Top comment:** "To keep ChatGPT neutral and useful for academic research, I treat it as a supplementary tool rather than a primary source. I use it to brainstorm ideas,..." ### Grammarly - Title: [How the readability score in Grammarly calculated? And what does it means?](https://www.g2.com/discussions/how-the-readability-score-in-grammarly-calculated-and-what-does-it-means) — 98 comments, 3 upvotes > **Top comment:** "Grammarly's readability score is based on the average length of sentences and words in your document, using a formula known as the Flesch reading ease test...." - Title: [What are the benefits of using Grammarly Business for maintaining professionalism and clarity in business communication?](https://www.g2.com/discussions/what-are-the-benefits-of-using-grammarly-business-for-maintaining-professionalism-and-clarity-in-business-communication) — 17 comments, 4 upvotes > **Top comment:** "It helps with ensuring that your correspondence is precise and written with clarity." - Title: [Is it possible to install it on all apps including powerpoint and browsers?](https://www.g2.com/discussions/is-it-possible-to-install-it-on-all-apps-including-powerpoint-and-browsers) — 12 comments, 1 upvote > **Top comment:** "When you download the correct extensions, it should work with many of your apps. It doesn't apply to all of them, however - excel for example - but it's..." - Title: [What is Grammarly Business used for?](https://www.g2.com/discussions/what-is-grammarly-business-used-for) — 5 comments, 7 upvotes > **Top comment:** "In writing effective emails with right tone and no mistakes!" - Title: [What is the business model of Grammarly?](https://www.g2.com/discussions/what-is-the-business-model-of-grammarly) — 4 comments, 2 upvotes > **Top comment:** "Grammarly's business model revolves around providing a premium grammar and spell-checking service for individuals, teams, and enterprise customers. The..." ### Blackbox No discussions available for this product. --- **Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/chatgpt-vs-grammarly-vs-blackbox-blackbox)