# ModernMT vs Sider

ModernMT records 8,537 monthly visits with -30.4% month-over-month growth and Free Trial, Paid pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

| Metric | [ModernMT](https://openaitools.app/tool/modernmt-com) | [Sider](https://openaitools.app/tool/sider) |
| :--- | :--- | :--- |
| Website URL | https://modernmt.com | https://sider.ai |
| Categories | AI Translate, AI API, AI Assistant | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader |
| Pricing Model | Free Trial, Paid | Freemium |
| Monthly Visits | 8,537 | 2,644,740 |
| MoM Growth Rate | -30.4% | -10.6% |
| Primary Market | Hungary | United States |
| Direct Visits | 3,772 | 1,699,535 |
| Review Score | 4.2 | 4.5 |
| Saved Count | 1 | 31 |
| Supported Platforms | Website | Website |

## ModernMT

ModernMT is the machine translation product built by Translated, the language services company behind MyMemory. Its central idea is adaptivity: rather than a single generic model, ModernMT lets each user's project learn from their own corrections, translation memories and glossaries, so the engine's output increasingly matches house style and terminology.

The platform is aimed at professional localization teams rather than casual translation. It combines a web dashboard for managing memories, glossaries and engines with a REST API and official SDKs for Node.js, Python, Go, Java, .NET and PHP, plus plugins for CAT tools including Trados Studio and memoQ. That makes it practical to embed inside an existing translation pipeline instead of replacing it.

Important operational note: Translated is migrating ModernMT to a newer platform called Lara, powered by a domain-specific large language model. According to the company, ModernMT will sunset by the end of 2026; existing API keys and plugins remain functional until December 31, 2026, and new sign-ups on modernmt.com are closed with new users directed to Lara. Anyone evaluating ModernMT today should plan for that migration path.

**Pricing & Plans:** ModernMT has historically offered a free trial alongside paid subscription and pay-as-you-go API plans, with custom enterprise agreements. Current pricing is quoted per project and is being reworked into dedicated Lara plans during the migration, so exact figures should be confirmed with the vendor.

- **Adaptive machine translation:** The engine continuously learns from translator corrections, so quality on your own content improves with use.
- **Translation memory and glossary:** Upload and manage translation memories and glossaries so terminology and past phrasing are respected in output.
- **API and CAT tool plugins:** Integrate the engine into Trados Studio, memoQ or your own stack via a documented REST API and SDKs for Node.js, Python, Go, Java, .NET and PHP.
- **Domain-aware engines:** Context-aware engines recognize the domain of a text and apply the most relevant translation memories automatically.
- **Batch and document workflows:** Process documents and batches through the platform as part of a localization pipeline, with support for 200+ language pairs.

**Strengths:** Output improves over time by learning from your own corrections; Strong professional-tooling story with CAT plugins and SDKs; Supports 200+ language pairs; Backed by Translated, an established language services provider

**Limitations:** Service is scheduled to sunset by the end of 2026; New sign-ups on modernmt.com are closed; new users are redirected to Lara; Document, image and audio translation are not available in ModernMT itself; Advanced adaptation (context, instructions, style guides) only exists on the newer Lara platform

[Profile (Markdown)](https://openaitools.app/tool/modernmt-com.md)

## Sider

Sider's premise is that you should not have to leave the page you are reading to use an AI assistant. Its sidebar overlays the browser, detects the content in view, and responds with chat, summaries, translations or explanations using frontier models from multiple providers. The result is a lightweight research and reading workflow: highlight a paragraph, ask for a simpler explanation, translate a PDF and keep the original in sight.

Recent versions push Sider beyond chat. Sider Hand is a browser agent that works across real websites and uses your logged-in sessions to carry out multi-step jobs such as comparing prices while shopping, filling forms, doing cross-site research or triaging a Gmail inbox. Sider Code goes the other way, letting you instruct changes to a website's appearance or behaviour in plain language and preserving the customisation for next time. A Create module generates images, videos, slides and documents from the same panel.

Pricing moves from a limited free tier to credit-based paid plans aimed at heavier users. Lower plans suit occasional chat, summarisation and translation, while higher tiers add a dedicated cloud computer that keeps the browser agent running around the clock and a larger monthly credit allowance. Sider ships as browser extensions for Chrome and Edge plus desktop and mobile apps for macOS, Windows, iOS and Android, and is used by a very large installed base.

**Pricing & Plans:** Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans.

- **AI sidebar on any page:** A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab.
- **Summarise and chat with documents:** Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
- **Translation and read-aloud:** Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
- **Sider Hand browser agent:** Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.
- **Sider Code page customisation:** Describe a change in plain words and have Sider restyle or simplify any website, remembering the modification for future visits.

**Strengths:** Works inside the browser you already use, with no context switching; Access to multiple frontier models from one subscription; Strong reading toolkit: PDF chat, YouTube summaries, translation and read-aloud; Increasingly capable agent features for multi-step browser tasks

**Limitations:** Useful credits run out quickly on the free and lower tiers; Model availability and quota rules change over time, so expectations must be checked per plan; Some agent and code features depend on a cloud machine and heavier plans

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

## Frequently Asked Questions

### How do ModernMT and Sider compare in monthly traffic?

ModernMT has 8,537 monthly visits, while Sider has 2,644,740. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

ModernMT has a month-over-month growth rate of -30.4%; Sider has -10.6%.

### How does pricing compare?

ModernMT: Free Trial, Paid. ModernMT has historically offered a free trial alongside paid subscription and pay-as-you-go API plans, with custom enterprise agreements. Current pricing is quoted per project and is being reworked into dedicated Lara plans during the migration, so exact figures should be confirmed with the vendor. Sider: Freemium. Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) |
| 3 | [DeepL](https://openaitools.app/tool/deepl) | 95,110,871 | -1.7% | Freemium | Enterprise-grade neural machine translation, AI writing refinement, and real-time voice translation across thirty-plus global languages. | [.md](https://openaitools.app/tool/deepl.md) |
| 4 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools. | [.md](https://openaitools.app/tool/monica-ai.md) |
| 5 | [Happy Scribe](https://openaitools.app/tool/happyscribe-com) | 4,088,330 | +8% | Freemium, Free Trial, Paid | AI transcription and meeting notes in 150+ languages | [.md](https://openaitools.app/tool/happyscribe-com.md) |
| 6 | [OpenL Translate](https://openaitools.app/tool/openl) | 1,470,643 | +8.8% | Freemium, Subscription | AI translation for text, images, documents and speech in 100+ languages | [.md](https://openaitools.app/tool/openl.md) |
| 7 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features. | [.md](https://openaitools.app/tool/merlin-ai.md) |
| 8 | [Lara Translate](https://openaitools.app/tool/lara-translate) | 982,359 | -16.1% | Freemium, Paid, Contact for Pricing | Professional AI translation for text, documents, images and audio | [.md](https://openaitools.app/tool/lara-translate.md) |
| 9 | [Lingvanex](https://openaitools.app/tool/lingvanex) | 661,553 | -9% | Contact for Pricing | On-premise translation and speech recognition for enterprises | [.md](https://openaitools.app/tool/lingvanex.md) |
| 10 | [Phrase](https://openaitools.app/tool/phrase) | 639,121 | -8.7% | Free Trial, Paid, Contact for Pricing | AI-powered localization and translation platform for global content | [.md](https://openaitools.app/tool/phrase.md) |

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Source: https://openaitools.app/compare/modernmt-com-vs-sider

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