# Grammarly vs Modelflare

Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. Modelflare records 121,024 monthly visits with +37.5% growth and Paid pricing.

| Metric | [Grammarly](https://openaitools.app/tool/grammarly) | [Modelflare](https://openaitools.app/tool/modelflare) |
| :--- | :--- | :--- |
| Website URL | https://www.grammarly.com | https://modelflare.dev |
| Categories | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator | AI API, AI Short Video Generator, Text to Video, Script To Video AI Generator |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 58,867,412 | 121,024 |
| MoM Growth Rate | -1.5% | +37.5% |
| Primary Market | United States | China |
| Direct Visits | 25,398,749 | 85,002 |
| Review Score | 4.4 | 4.3 |
| Saved Count | 74 | 0 |
| Supported Platforms | Website | Website |

## Grammarly

Grammarly is the world's most widely deployed AI writing and communication platform, trusted by more than 40 million daily users and 50,000 organizations including Atlassian, Databricks, and Zoom. Operating as a persistent overlay across over 500,000 web applications, desktop programs (Windows and macOS), Microsoft Office, Google Docs, and iOS/Android keyboards, Grammarly analyzes text in real time to eliminate grammatical errors, streamline wordy phrasing, and calibrate tone to match the writer's intent. Following its corporate evolution under the Superhuman Platform umbrella alongside Superhuman Mail and Coda, Grammarly has expanded from a personal proofreader into an enterprise-grade proactive AI communication suite.

In 2026, Grammarly goes well beyond red-underline spellchecking with a suite of specialized AI Agents and document integrity tools. Writers can invoke purpose-built agents—including AI Grader, Citation Finder, Reader Reactions, and Paraphraser—alongside generative AI drafting directly inline where they work. To address academic and professional transparency in the generative AI era, Grammarly offers built-in Plagiarism Detection, an AI Detector, and Grammarly Authorship, which tracks how a document was constructed by automatically categorizing text as human-typed, pasted from external sources, or generated/modified with AI. For teams, Grammarly enforces organizational consistency through custom Style Guides, Brand Tones, reusable Snippets, and Knowledge Share.

Grammarly simplified its subscription structure by consolidating its legacy individual 'Premium' and team 'Business' offerings into a single unified tier: Grammarly Pro. The Free plan ($0/month) covers essential spelling, punctuation, basic tone visibility, and 100 generative AI prompts per month. Grammarly Pro is priced at $12/member/month when billed annually ($144/year) or $30/member/month when billed monthly ($60 quarterly), unlocking unlimited personalized fluency suggestions, full-sentence rewrites, tone adjustment, citation formatting, plagiarism and AI detection, 1 team style guide, and 2,000 generative AI prompts per member each month. Large organizations opt for Grammarly Enterprise (available with Superhuman Go) for unlimited AI prompts, SAML SSO, SCIM provisioning, Data Loss Prevention (DLP), and Bring Your Own Key (BYOK) encryption.

**Pricing & Plans:** Free plan ($0/month) includes core grammar and spelling checks, tone detection, and 100 generative AI prompts/month; Grammarly Pro costs $12/member/month billed annually ($144/year, or $30/month billed monthly) with full-sentence rewrites, plagiarism/AI detection, team style guides, and 2,000 AI prompts/month, while Enterprise offers custom pricing with unlimited AI prompts and BYOK security.

- **Ubiquitous Inline Rewriting & Tone Calibration:** Works natively inside Chrome, Safari, Firefox, Edge, Windows, Mac, Google Docs, MS Office, and mobile keyboards to flag grammar mistakes, rewrite tangled sentences, and shift tone toward confident, empathetic, or executive registers.
- **Specialized AI Agents (AI Grader, Citation Finder & Reader Reactions):** Deploys contextual AI agents that predict how a target audience will react to a draft, locate credible supporting citations, grade essays against rubric criteria, and generate drafts using up to 2,000 monthly prompts on Pro.
- **Grammarly Authorship, AI Detector & Plagiarism Checker:** Scans text against billions of web pages and academic databases for accidental plagiarism, detects AI-generated passages, and logs transparent document provenance via Authorship reports in Google Docs and Word.
- **Team Style Guides, Brand Tones & Knowledge Share:** Enables teams on Pro and Enterprise plans to codify company terminology, ban deprecated jargon, enforce inclusive language, insert shared Snippets, and surface internal company definitions inline.
- **Enterprise Security, DLP & Superhuman Platform Governance:** Protects organizational data with SOC 2 Type 2 attestation, SAML SSO, SCIM lifecycle management, Confidential Mode, Data Loss Prevention controls, Audit Logs API, and customer-managed BYOK encryption.

**Strengths:** Frictionless cross-platform integration works inside virtually every browser, desktop app, email client, and mobile OS without copy-pasting into a separate chatbot.; Consolidating Premium and Business into Grammarly Pro ($12/member/month annual) gives individuals and small teams access to style guides, analytics, and plagiarism/AI detection in one plan.; Grammarly Authorship provides a constructive, transparent audit trail for students and writers to demonstrate human writing integrity alongside responsible AI editing.; Mature enterprise security posture featuring BYOK encryption, Data Loss Prevention, and granular application/domain blocklists.

**Limitations:** Month-to-month billing on Grammarly Pro is steep at $30/member/month compared to the $12/member/month annual commitment ($144 billed upfront).; Core writing intelligence and style rules remain primarily optimized for English dialects (US, UK, Canadian, Australian, Indian) rather than native multilingual grammar checking.; Aggressive inline underlines and pop-up agent cards can feel visually intrusive in dense technical documents or code-heavy web editors unless muted per domain.

[Profile (Markdown)](https://openaitools.app/tool/grammarly.md)

## Modelflare

Modelflare's core idea is consolidation. Rather than managing separate accounts, API keys, and invoices for OpenAI, Anthropic, Google, and a growing list of image and video providers, you hold one balance and one key. Requests can be sent with OpenAI SDKs against https://modelflare.dev/v1, or with Anthropic and Gemini SDKs against the bare host, and each model is listed alongside the official rate for its billing unit — tokens, images, or seconds of video.

Reliability is handled at the routing layer. Each model can be served by several routing groups, and where upstream failures allow failover you can configure a primary route plus ordered backups, so a single API key keeps requests flowing even when one provider wobbles. Every request records its token usage and cost, while per-project keys can carry quotas, expiry dates, and model or IP restrictions.

For teams, enterprise accounts add a shared balance with a dedicated console: admins invite members by email, give each an unlimited, one-time, or monthly budget, issue keys prefixed with the company name, top up balances, and review usage, creations, and admin actions. Alerts warn before a balance or member budget runs out, and the service is stated as available in 171 countries and territories. Modelflare also offers an engineering blog, integrations for VS Code, MCP, and n8n, an affiliate program, and Castaly, a no-code studio for image and video generation that shares the same account balance.

**Pricing & Plans:** Modelflare is paid and usage-based. You start with pay-as-you-go credits or choose a subscription plan with an included quota, and each model shows its rate next to the official one in units such as tokens, images, or video seconds. Top-up and refund policies are published, and enterprise accounts add member budgets with prepaid top-ups.

- **One OpenAI-compatible endpoint:** Use a single API key and base URL with OpenAI SDKs and compatible tools, or the bare host with Anthropic and Gemini SDKs, to reach text, image, video, and audio models from many providers.
- **Provider routing with ordered fallback:** Configure a primary route plus ordered backups for a regular API key so requests can fail over to another eligible route when an upstream provider has trouble.
- **Per-request usage and cost tracking:** Every request logs its token usage and cost in the console, with model prices listed beside the official rate for each routing group and billing unit.
- **Enterprise team console:** Invite admins and members by email, assign unlimited, one-time, or monthly budgets, issue keys prefixed with your company name, top up, and audit every action.
- **Castaly creative studio:** Sign in with the same account to pick an image or video model in a no-code studio, describe your idea, and share balance and usage records with the API side.

**Strengths:** One key and one balance across many model providers reduces integration and billing overhead; Routing with ordered fallback keeps requests moving when an upstream provider fails; Granular cost visibility down to the individual request, member, model, and key; No-code Castaly studio shares the same account, so creative users and developers bill together

**Limitations:** Prices vary by model and routing group, so cost forecasting still requires checking each rate; Reseller-style pricing means availability and terms can depend on upstream providers

[Profile (Markdown)](https://openaitools.app/tool/modelflare.md)

## Frequently Asked Questions

### How do Grammarly and Modelflare compare in monthly traffic?

Grammarly has 58,867,412 monthly visits, while Modelflare has 121,024. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Grammarly has a month-over-month growth rate of -1.5%; Modelflare has +37.5%.

### How does pricing compare?

Grammarly: Freemium. Free plan ($0/month) includes core grammar and spelling checks, tone detection, and 100 generative AI prompts/month; Grammarly Pro costs $12/member/month billed annually ($144/year, or $30/month billed monthly) with full-sentence rewrites, plagiarism/AI detection, team style guides, and 2,000 AI prompts/month, while Enterprise offers custom pricing with unlimited AI prompts and BYOK security. Modelflare: Paid. Modelflare is paid and usage-based. You start with pay-as-you-go credits or choose a subscription plan with an included quota, and each model shows its rate next to the official one in units such as tokens, images, or video seconds. Top-up and refund policies are published, and enterprise accounts add member budgets with prepaid top-ups.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [DeepL](https://openaitools.app/tool/deepl) | 95,110,871 | -1.7% | Freemium | Outstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker. | [.md](https://openaitools.app/tool/deepl.md) |
| 2 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Excels at heavy paraphrasing and text rewriting, but offers less seamless inline real-time proofreading across all apps. | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) |
| 3 | [Venice AI](https://openaitools.app/tool/venice-ai) | 25,088,401 | +23.8% | Freemium | Private AI for unrestricted creative work | [.md](https://openaitools.app/tool/venice-ai.md) |
| 4 | [LanguageTool](https://openaitools.app/tool/languagetool) | 5,707,795 | -4.2% | Freemium | Provides strong multilingual grammar and style checking across apps, but offers fewer advanced generative AI features. | [.md](https://openaitools.app/tool/languagetool.md) |
| 5 | [Magic Hour](https://openaitools.app/tool/magic-hour) | 3,383,328 | +26.8% | Freemium | One AI studio for video, image, and audio creation | [.md](https://openaitools.app/tool/magic-hour.md) |
| 6 | [Makefun AI](https://openaitools.app/tool/makefun-ai) | 2,529,417 | +2.4% | Freemium, Contact for Pricing, Free | Free AI video and image generator with avatar, face swap and voice cloning | [.md](https://openaitools.app/tool/makefun-ai.md) |
| 7 | [WaveSpeedAI](https://openaitools.app/tool/wavespeedai) | 2,164,832 | +22.9% | Paid | One API for 1,000+ AI image, video, audio and 3D models | [.md](https://openaitools.app/tool/wavespeedai.md) |
| 8 | [ProWritingAid](https://openaitools.app/tool/prowritingaid-com) | 1,623,266 | +17.6% | Freemium, Paid | Delivers deeper manuscript analysis and structural reports, but has a steeper learning curve than Grammarly. | [.md](https://openaitools.app/tool/prowritingaid-com.md) |
| 9 | [Paperpal](https://openaitools.app/tool/paperpal) | 1,111,641 | +1.7% | Freemium | AI academic writing assistant that edits, cites, and checks your manuscript right where you write | [.md](https://openaitools.app/tool/paperpal.md) |
| 10 | [Hemingway Editor](https://openaitools.app/tool/hemingway-editor) | 605,169 | -8.6% | Free Trial, Paid, Free | Highlights readability and sentence complexity visually, but lacks automated grammar correction and browser-wide extension support. | [.md](https://openaitools.app/tool/hemingway-editor.md) |

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Source: https://openaitools.app/compare/grammarly-vs-modelflare

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